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Copyright of Cultura, Ciencia y Deporte is the property of Cultura, Ciencia y Deporte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Ciencias Agricolas is the property of University of Narino, Faculty of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In Latin America, subtherapeutic antibiotics are commonly used in the production of monogastric animals, although their use in rabbits is less relevant than in poultry and pigs. It is known that their use generates bacterial resistance, and they have proven harmful effects on human health. This review addresses the characterization and use of new nutraceutical additives, emphasizing phytobiotics, probiotics, and prebiotics and their effect on the biological indicators of rabbits in different productive categories. These natural alternatives have antimicrobial, anti-inflammatory, antioxidant, immunomodulatory and hypocholesterolemic effects, which can stimulate the native microbiota, the production of shortchain fatty acids and can provoke microbial eubiosis and, therefore, improve intestinal health, digestibility, productive efficiency and meat quality of rabbits. Also, they can alleviate the harmful effects of some common bacterial diseases and intoxications. However, the effectiveness of these natural alternatives will depend on the probiotic strain used, the main secondary metabolites in phytobiotics and the chemical structure of the prebiotics, as well as the health status, diet, age, and productive category of the rabbits. [ABSTRACT FROM AUTHOR]

Copyright of GeSec: Revista de Gestao e Secretariado is the property of Sindicato das Secretarias e Secretarios do Estado de Sao Paulo (SINSESP) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Arquivos de Ciências da Saúde da UNIPAR is the property of Associacao Paranaense de Ensino e Cultura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of ESPOCH Congresses: The Ecuadorian Journal of S.T.E.A.M. is the property of Knowledge E DMCC and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Veterinaria is the property of Universidad Nacional del Nordeste and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Bistua: Revista de la Facultad de Ciencias Básicas is the property of Facultad de Ciencias Basicas de la Universidad de Pamplona and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Derecho Privado (00347922) is the property of Editorial Reus and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: In Colombia, the most consumed meat is chicken, which has become fundamental for food security. In this production, food is the most crucial item; consequently, the search for economical and environmentally friendly raw materials is a reason for research. In the Colombian Orinoco region, some species can be a source of protein: bore (Alocasia macrorrhiza), matarratón (Gliricidia sepium), and buttercup (Tithonia diversifolia) and energy: corn (Zea mays), plantain (Musa paradisiaca) and yucca (Manihot esculenta) for the production of concentrated foods. Objective: To evaluate the effect on broiler growth of a feed formulation supplemented with the above-mentioned raw materials in the region (MOBMPY). Methods: It was carried out between October and November 2023; 15 COOBS broilers were fed from day 14 to 31 of life. They were distributed in three groups: MOBMPY experimental, experimental with soybean, and commercial concentrate. The animals were weighed weekly, and the information generated was recorded in a specially designed format. The groups were compared using the Student's t-test. Results and Discussion: At the end of the experiment, the average weight of the animals was 530, 565, and 915 g, with weight gains of 374, 370, and 689 g for MOBMPY, soybean, and commercial, respectively. The commercial concentrate showed significant differences (P=0.0002) compared to MOBMPY and soybean. The two previous ones had no significant differences. The MOBMPY feed consumed 65% of the expected consumption, and its cost was $ 503 vs $ 2625 for the commercial concentrate. The value per kg of meat produced with the MOBMPY supplement was $2,622 compared to $18,150 for the commercial concentrate. Conclusion: The use of local raw materials allows animal protein production at a cost 6.9 times lower than that of commercial concentrates, facilitating food sovereignty. The low growth rate and palatability obtained with local raw materials should be analyzed to improve formulations or to adopt policies for the management of the production system. [ABSTRACT FROM AUTHOR]

Introduction: Nutrition and reproduction are fundamental but often neglected aspects in beef heifers, which exhibit a high degree of interaction associated with reproductive stress and high nutrient demand. This contributes to reproductive inefficiency in primiparous cows. Objective: To evaluate the effect of prepartum and postpartum supplementation on metabolic response and ovarian morphometry in grazing beef heifers. Methods: Twenty-eight Nelore heifers with 5.4±0.5 months of gestation, 459.7±6.8 kg, and 5.8±0.10 body condition score (Scale 1-9), respectively, were used. The experiment lasted 210 days and was conducted according to a completely randomized design with four treatments. The treatments were: 0.0, 0.4, 0.8, and 1.2 kg/animal/day of a protein supplement with 25% crude protein. All animals received ad libitum mineralized salt and had free access to water. Blood samples were collected 15 days before the expected calving date (-15), and 30 (+30) and 60 (+60) days postpartum to quantify serum urea nitrogen (SUN), non-esterified fatty acids (NEFAs), glucose, total proteins, globulins, triglycerides, and progesterone concentrations. Additionally, on days 30, 45, 60, and 75 postpartum, ovarian (diameter, circumference, and follicle number) and follicular (diameter and volume) measurements were taken from all animals via ultrasonography (Mindray DP-1100 Plus/DP-2200; 5 MHz linear probe). The results were subjected to analysis of variance and decomposed through orthogonal contrasts. Differences were considered significant at P<0.05. Results and Discussion: There were no effects (P>0.05) of supplement amounts on the diameter, circumference, and number of follicles present in each ovary, nor on the diameter or volume of the largest and second-largest follicle. Supplement amounts increased (P<0.05) blood concentrations of SUN and total proteins, with higher concentrations observed in cows receiving a greater amount of supplement. However, no treatment effect (P>0.05) was observed on serum levels of NEFAs, glucose, triglycerides, globulins, and progesterone. Conclusion: Offering a maximum of 1.2 kg/day of protein supplement to grazing beef heifers during prepartum and postpartum does not improve the energetic status or ovarian morphometry. [ABSTRACT FROM AUTHOR]

Introduction: Postpartum nutrition in beef cows can improve reproductive and productive performance. Studies show that supplementation can help maintain postpartum body condition, influencing cow cyclicity and fertility. However, there is little research on the impact of supplementation on Nellore cows in tropical pastures. Objective: To evaluate the effect of postpartum supplementation on the productive response and metabolic status of Nellore cows of different orders of delivery in tropical pasture. Methods: Forty Nellore cows were used, 16 primiparous (2.5 0.5 years) and 24 pluríparas (6.2 2.3) with body weight (BW) of 429 40.9 kg and 523 24.0 kg, and body condition score (BCS) of 6.4 0.3 and 6.3 0.6, respectively. The animals were distributed in a completely randomized design in factorial scheme 2 2, resulting in four treatments: P1N, primiparous without supplementation; P1S, primiparous receiving 1 kg/day of supplement; P2N, pluríparas not supplemented; P2S, pluríparas receiving 1 kg/day of supplement. All animals received ad libitum mineral mixture and had free access to water. The supplement was formulated to contain 25% crude protein. The evaluations began on the day of delivery and ended on the 42nd day postpartum for each animal. Results and Discussion: There was an interaction effect (P<0.10) between the order of birth supplementation, where independent pluríparas supplemented or primiparous had higher BW compared to the primiparous not supplemented. Supplementation increased (P<0.10) the final BW, BCS, ADG, and BW and ADG of calves at 42 days of age. In turn, there was an effect (P<0.10) of the calving order in which rain cows presented higher final BW, ADG and BW at birth, final BW and ADG of calves up to 42 days of age. On the other hand, there was no effect of supplementation on milk production corrected for 4% fat or total solids. However, rain cows showed higher levels of these elements. Conclusion: Supplementation improves the productive performance of beef cows regardless of the order of delivery. [ABSTRACT FROM AUTHOR]

Copyright of Revista Veterinaria is the property of Universidad Nacional del Nordeste and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Intercontinental Journal of Sport Management / Revista Intercontinental de Gestão Desportiva is the property of Revista Intercontinental de Gestao Desportiva and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Informacion Tecnica Economica Agraria is the property of Asociacion Interprofesional para el Desarrollo Agrario (AIDA) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Biológico Agropecuaria Tuxpan is the property of Revista Biologico Agropecuaria Tuxpan and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Veritas is the property of EDIPUCRS - Editora Universitaria da PUCRS and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Ciência Agronômica is the property of Revista Ciencia Agronomica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The study of the ingestion behavior is important to know the animal production performance and is a must when evaluating different feeding regimes. This work aims to evaluate the daytime ingestion behavior and the productive answer in criollo lambs receiving supplement with cotton seeds (CS) and ground corn (GC). Sixteen complete male criollo lambs were used having a starting weight of 16 ± 2 Kg. They were distributed randomly into four experimental treatments consisting in: T0 = shepherding, T1 = shepherding + 25% CS + 75% GC, T2 = shepherding + 50% CS + 50% GC, and T3 = shepherding + 75% CS + 25% GC. Using both external and internal markers, the nutritional composition of the forages and the dry mass consumption in the animals were determined, i.e., the ingestion behavior and the productive performance. The total dry mass consumption showed statistical differences (p < 0.05), with lower consumption among the control animals. Likewise, statistical differences were detected (p < 0.05) between the treatments for shepherding activities, cud, water consumption and walking regarding variables like mouthfuls per minute and total ingestion. The final weight and the weight gain in the animals receiving supplements were higher in 28.4 % and 50.3 %, respectively. The CS and GC supplements led to a greater consumption of nutrients and, therefore, improved the ovine production performance. [ABSTRACT FROM AUTHOR]

Objective. Evaluate multinutritional blocks with and without calcium propionate (Pr-Ca) in digestibility and live weight changes of lambs and in the green house emission in vitro. Materials and methods. Twelve sheep were used (20.17 ± 2.35 Katahdin x criollo) in three treatments: Basal diet (BD 70% oat straw, 30% concentrate), BD+ Block without Ca-Pr and BD+ Block with 1.5% Ca-Pr, it was evaluated for 50 days. In vitro gas production (GP) and kinetic parameters were estimated (Vmax, S, Lag) according to consumption. Digestibility, CH4 and CO2 in vitro and in vivo were estimated. Results. The dry matter intake was the lowest (p<0.0001) in lambs without block (753 g/d) compared lambs supplemented with block without (839 g) or with Ca-Pr (828 g) by including blocks increased methane (16.16 and 16.18 g/d; 0 and 1.5% Ca-Pr respectively) than with BD (13.93 g/d). The GP in vitro was higher (p=0.0001) with the BD (380.76, ml) than with blocks without differences among blocks (335.76 and 341.13 ml, 0 and 1.5% Ca-Pr respectively), and the BD had higher (p=0.0001) production of CH4 (47.16 mol) and CO2 (200.04 mol) than with blocks (42.25 and 41.58 mol CH4; 179.21 and 176.39 mol CO2; 0 and 1.5% Ca-Pr respectively). Conclusions. Block supplementation improved dry matter intake. Blocks reduced in vitro gas production and increased digestibility by reducing CH4 and CO2. [ABSTRACT FROM AUTHOR]

Background: the inclusion of essential oil in supplemented cows in production under grazing can be an alternative to enhance efficiency of grazing systems in the low tropics without affecting milk composition. Objective: to evaluates the effect of supplementation with different levels of inclusion of essential oil cinnamon (Cinnamomum verum) on the production‚ composition and cost-benefit ratio in dual-purpose cattle from the low tropics. Methods: the study lasted 108 days. 24 dual purpose multiparous crossbred cows were used. A completely randomized design was used‚ in which the animals were randomly divided into four treatments with a 1 kg/day supplement supplied with 19 % CP‚ with inclusion levels of 0‚ 0.5‚ 1 and 1.5 g of cinnamon essential oil. (Cinnamomum verum)/day. Result: the inclusion of essential oil showed an effect on average and total milk production (p < 0.05)‚ without affecting its composition in the different treatments (p > 0.05). The addition of essential oil reduced the percentage of the cost of the supplement in each liter of milk by 1.82 and 2.3 %‚ for the treatments with 0.5 and 1 g‚ respectively‚ in relation to the control treatment. Conclusions: the results suggest that supplementation with the addition of cinnamon essential oil in cows in production with low quality pastures can improve performance without affecting the nutritional characteristics of the milk. [ABSTRACT FROM AUTHOR]

Background: the strategic supplementation of bovine in the prepartum has taken on great importance due to the rapid results that lead to a better productive performance of the animals. Objective: the objective of this study was to evaluate the effect of prepartum supplementation on the productive performance and milk quality in Nellore cows in tropical pasture. Methods: forty-four pregnant Nellore cows with mean initial 541 ± 19 kg body weight and body condition score of 5.5 ± 1.7 were used and distributed in a completely randomized design. The animals underwent 105 experimental days, which corresponded to the dry season and the dry-rainy transition season, and kept in eight 6 hectares paddocks each, formed by Brachiaria decumbens and equipped with drinkers and feeders. Supplementation was provided during the last 60 days prepartum and consisted of four supplement amounts: 0.0; 0.5; 1.0 and 1.5 kg/supplement/day, formulated to contain 20 % crude protein (CP). The cows were milked at 30 and 45 days after calving to estimate the milk yield converted to a 24 h corrected for 4 % (Milk4% yield) of fat. In addition, the composition of milk for protein, fat, lactose, and total solids was analyzed. Data were analyzed using orthogonal contrasts, and significance was considered at p ≤ 0.10. Results: treatment × collection day interaction and quadratic effect (p < 0.10) of the amounts of supplement offered on the milk yield4% was detected, in which cows receiving 1.0 kg/d showed the highest milk production at 40 days postpartum. However, supplement amounts did not affect (p > 0.10) the cows' milk composition. Conclusion: prepartum strategic supplementation increases daily milk production without affecting its nutritional composition in Nellore cows in tropical pasture. [ABSTRACT FROM AUTHOR]

Antecedentes: los patrones de ingestión de alimento en vacunos se pueden correlacionar de manera significativa con el desempeño y eficiencia productiva. Objetivo: evaluar el comportamiento ingestivo de novillos en torno al saladero bajo diferentes estrategias de oferta de suplemento mineral. Métodos: el trabajo se realizó en una finca en Cimitarra, Santander, con 15 machos cruzados de 288,5 kg, que rotaron en tres potreros de Bachiaria decumbens, en 12 ha. Se evaluaron, por 264 días, tres tratamientos (ubicación del saladero): T1: compartido en dos potreros; T2: cercano al sitio de mayor frecuencia de pastoreo y T3: próximo a la fuente de agua. Cada potrero se rotó tres veces, y en cada rotación se evaluó un tratamiento diferente por potrero. La mezcla ofrecida, diariamente, fue Nitromin 1® (Somex S.A). A cada animal se le colocó un dispositivo electrónico en la oreja para poder registrar el ingreso al saladero, el cual tenía instalado el equipo SOMEX RFID 210 que detectaba y registraba en tiempo real cada entrada del animal. Se estudió la frecuencia y número de visitas, tiempo de permanencia y número de animales que ingresaban. Se analizó el efecto del día de oferta (1 a 5 o más). Los datos se analizaron mediante estadística descriptiva y ANAVA. Resultados: el saladero compartido (T1) presentó menor (p < 0,05) frecuencia diaria de visitas (38,9), en comparación al T2 (91,1) y T3 (71,1) que no variaron entre sí. El tiempo de permanencia (segundos) fue mayor (p < 0,05) en la ubicación T2 (1016,9), seguido por T3 (747,4) y T1 (313,5). El número de ingresos fue menor (p < 0,05) en T1 (7,3) vs T2 (9,8) y T3 (9). Tanto, la frecuencia de visitas como la permanencia en el saladero seguían un patrón diferente a partir del quinto día de iniciada la oferta de suplemento, con una tendencia de disminución. La presencia de lluvias alteró el patrón de frecuencias, consumo y visitas, pero con tendencias diferentes según el tratamiento. Conclusiones: en las condiciones de estudio, ubicar el saladero en zona de pastoreo estimula las frecuencias y duración de las visitas; sin embargo, se deben considerar aspectos como las lluvias o el tiempo de instauración de la estrategia. [ABSTRACT FROM AUTHOR]

Red-bellied Woodpeckers (Melanerpes carolinus) are insectivores that consume mainly insects found within trees but may also feed on seeds and small vertebrates. On rare, isolated occasions, Red-bellied Woodpeckers opportunistically scavenge carcasses or carrion. Here we document the first recorded instances of repeated and sustained visits by Red-bellied Woodpeckers to a deer carcass presumably for the supplementation of diet via scavenging. Between December 2016 and March 2017, a tree-mounted, motion sensor trail camera directed toward a deer carcass, on a site in Winona, Minnesota, captured 1,815 photos of Red-bellied Woodpeckers from 381 separate visits. We analyzed the photos to determine if time of day or month affected the frequency of pictures of Red-bellied Woodpeckers at the carcass. The timing of Red-bellied Woodpecker visits was not uniformly distributed with more pictures being taken during the middle of the day; however, the frequency of photographs did not differ by survey month. Results of this study are useful for expanding our understanding of Red-bellied Woodpecker diets and the role that scavenging may play in diet supplementation during winter. [ABSTRACT FROM AUTHOR]

To study the productive performance of grazing lambs, supplemented with fermented coffee pulp, an experiment was carried out for 90 d. Twenty creole entire lambs were used, with initial live weight of 20.34 ± 1.64 kg (9.56 ± 0.58 kg LW0.75), between 5-6 months of age, divided into two groups, according to a completely randomized design. The treatments consisted of: T1) without supplementation (control) and T2) with supplement (fermented coffee pulp, sugarcane, corn, soybean, alfalfa meal and mineral salts). Both groups had free access to grazing for 8 h daily. The supplement was offered at a rate of 11 g kg LW-1, on dry basis, on a single occasion (4:00 pm) during the enclosure. The results showed higher average daily weight gain (74.11 g d-1, P <0.0001), hot carcass yield (47 %, P = 0.0033), dry matter intake (89.01 g kg LW0.75, P <0.0001) and food conversion (12.9, P <0.0001) in treatment two. It was observed that the average daily gain is related to dry matter intake (r = 0.90, P <0.0001), energy intake (r = 0.90, P <0.0001) and protein intake (r = 0.94, P <0.0001). Therefore, the the yield of hot carcass is determined by the dry matter intake and the total weight gain (R2 = 0.69, P = 0.0162). It is concluded that the use of supplement with 30 % of fermented coffee pulp improves the productive performance of grazing creole lambs, so it can be an interesting alternative for these production systems, especially during the dry season, where there is a marked forage shortage. [ABSTRACT FROM AUTHOR]

Copyright of Revista Andaluza de Medicina del Deporte is the property of Centro Andaluza de Medicina del Deporte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Arquivo Brasileiro de Medicina Veterinária e Zootecnia is the property of Universidade Federal de Minas Gerais, Escola de Veterinaria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The dispute between dialectics and rhetoric in Plato's texts is decisive for the configuration of a logic of oppositions as the normative basis of Greek philosophy. We will show how Aristotle, heir and critic of the former, returns to this controversy by destabilizing the strict hierarchy established by Plato, trough a reconfiguration of the dialectical order by a logic of the supplement. [ABSTRACT FROM AUTHOR]

Nowadays, the use of nutritional supplements among athletes to improve performance has increased without considering the consequences that may result if not taken properly. However, the natural beverage mate tea is considered as candidate against diseases like obesity because of its multiple benefits, such as: a lower differentiation of adipocytes and triglycerides, an increase in the metabolic rate in addition to its antioxidant and anti-inflammatory function. Benefits in sport performance have not been elucidated yet, which led us to study yerba mate effects in sport performance of CrossFit athletes. Thirty athletes who usually practice CrossFit were evaluated. Mate tea (300 ml) was consumed 30 minutes before the test; performance was evaluated in terms of the total time taken to complete a routine. A positive effect was noted on athletic performance when mate tea was consumed (4:46 minutes vs. 4:13 minutes) p= 0,001. The contributions of this study are useful for new research into sports nutrition and athlete performance. [ABSTRACT FROM AUTHOR]

This work focuses on the interpretation of Fantomas contra los vampiros multinacionales, a narrative of great complexity by Julio Cortázar, a hybrid that is not so wellknown. The novel presents the problematic between ethical commitment and aesthetical commitment, since it is focused on the assistance and participation of Cortázar on the Russel Tribunal sessions and human rights violations in Latin American countries. The proposal for interpretation is to consider the relationship between the ethical and the aesthetical in light of the derridian concept of supplement. In other words, the ethical is not a marginal element, and there are no hierarchical differences between both. The supplement implies a new way of thinking about all binomial relationships. [ABSTRACT FROM AUTHOR]

Currently the food industry has generated interest in non-nutritive sweeteners, for example Stevia and in special components such as L-carnitine, used in formulations of nutritional supplements for glycemic control specific for diabetics. The present study evaluated the effect of stevia and L-carnitine on the glycemic index (GI) and glycemic load (CG) of a nutritional supplement in 19 healthy subjects (9 men and 10 women), who randomly completed 3 consumption tests, 1 for the supplement and 1 for each reference product: Glucose solution (SG) and white bread (PB), obtaining blood samples at the 0, 15, 30, 45, 60, 90 and 120 min times; for measurement of blood glucose, basal and postprandial insulin. The increase area under the glucose curve (IAUC) was lower for supplement 11,778.73 than for reference products (SG) 13,724.06; (PB) 13,153.56 α= p 0.005. IG = (62) and CG = (16) were intermediate and lower than white bread IG = (69) and CG = (18), with no difference in postprandial insulin. This demonstrates that this nutritional supplement formulated with stevia and L-carnitine is able to prolong the glycemic response without increasing the insulin requirements in healthy subjects. Specific studies are required in diabetics to validate whether the glycemic impact is lower than the standard product. The presence of other nutrients in the formula, influential in these indicators, does not allow to infer that the results are due only to the type of sweetener used and the L-carnitine. [ABSTRACT FROM AUTHOR]

In order to use phosphorite, from new ores of "Trinidad de Guedes" deposit, as a supplement of Ca and P for broilers, the dicalcium phosphate of the diet was replaced by 50 and 100 % of phosphorite. A biological evaluation was carried out and the effect of this substitution on liveweight, relative weight of carcasses and of some organs and blood indicators, was analyzed. An amount of 57 animals was used, which were taken from an experiment of productive performance with 300 broilers of HE21 hybrid from 1 d old, distributed according to a completely randomized design. Liveweight was determined at 35 and 42 d, and after slaughter, relative weight of carcasses, liver, spleen, kidney and pancreas was also determined, as well as hemoglobin and hematocrit. For liveweight, there were no differences between control and treatments with the substitution of dicalcium phosphate in both studied periods (1.53 vs. 1.53 and 1.49 kg; 1.71 vs. 1.66 and 1.71 kg). Regarding relative weight of carcasses and organs, and to hematological indicators, there were no differences between control and treatments, for either period. Results suggest the use of Trinidad de Guedes phosphorite to replace dicalcium phosphate as a Ca and P supplement for broilers, without affecting liveweight, relative weight of carcasses and organs, as well as hemoglobin and hematocrit. [ABSTRACT FROM AUTHOR]

The multiple mineral mixture is an animal supplementation technique that allows to accelerate the weight gain of ruminants, potentiate the use of forages and to meet the ruminal microbial demands of the animal. Therefore, the aim of this research was to investigate aspects of the use of multiple mineral mixture in beef cattle feed by farmers. To this end, it was applied structured forms to 32 rural producers in the states of Minas Gerais, Goiás and Tocantins, it was carried by means of field research, thus obtaining aspects regarding the use of the product. The results of the research indicate that the majority, 71.88%, use grazing as a form of management, 50% of respondents adopt their use, 84.22% use it in the dry season and 68.75% use it as ingredient maize and soybean meal. Therefore, it is concluded that it is necessary to disseminate the usage information, as well as to encourage the implementation of techniques that improve the use of the mineral multiple mixture. [ABSTRACT FROM AUTHOR]

The use of waste and by-products of fruit in of sheep supplementation has demonstrated an important alternative sustainable, being capable of minimizing environmental damage while reducing the production cost to the owners. Aspects such as digestibility, feeding behavior, carcass characteristics, performance, among others, are being evaluated for inclusion of waste and by-products of fruit on sheep supplementation. Despite its relevance, there are few studies on this subject, suggesting further research in this respect. [ABSTRACT FROM AUTHOR]

Avaliou-se o efeito de níveis de glicerina bruta sobre o consumo de suplemento e o desempenho de cordeiros lactentes mantidos a pasto, além das características quali-quantitativas do pasto de azevém. Foram utilizados 32 cordeiros lactentes distribuídos nos tratamentos: 0, 10, 20 e 30% de glicerina bruta, em substituição ao milho, no suplemento isoproteico (18% PB) fornecido diariamente em quantidade equivalente a 2% do peso corporal. Não houve efeito (P>0,05) dos níveis de glicerina bruta sobre as características qualitativas e quantitativas do pasto, na composição de proteína bruta e fibra detergente neutro e na carga animal suportada pela pastagem, nem no consumo de suplemento, ganho de peso médio diário e o número de dias até o abate dos cordeiros. Níveis de até 30% de glicerina bruta, em substituição ao milho, no suplemento fornecido para cordeiros lactentes pastejando azevém não comprometem o consumo de suplemento, desempenho e período de terminação dos animais.The aim of this study was to evaluate the effect of levels of crude glycerin in the supplement intake and performance of suckling lambs on ryegrass pasture, beyond the qualitative and quantitative characteristics of ryegrass pastures. It was used 32 suckling lambs distributed between the treatments: 0, 10, 20 and 30% of crude glycerin, replacing corn, in the isoproteic supplement (18% CP) offered daily in an amount equivalent to 2% of body weight. There was no effect (P>0.05) of the levels of crude glycerin on the qualitative and quantitative characteristics of pastures, composition of crude protein and neutral detergent fiber, stocking rate supported by ryegrass pasture, neither on supplement intake, average weight gain and number of days to slaughter the lambs. Levels up to 30% of crude glycerin, replacing corn, provided in the supplement to suckling lambs grazing ryegrass didn't compromise the supplement intake, performance and termination period of the animals.

RESUMEN El objetivo de esta investigación fue evaluar la ganancia de peso vivo y la relación beneficio - costo de terneras lactantes manejadas bajo el sistema doble propósito, suplementadas con semilla de algodón y melaza, durante la época seca en la finca Picacho, municipio de Montería, departamento de Córdoba, Colombia. Se utilizaron 26 terneras mestizas, divididas aleatoriamente en un grupo testigo (13 animales), que recibía el manejo tradicional de la finca y un grupo experimental (13 animales), que tomaban un suplemento alimenticio, a base de semilla de algodón y de melaza. Los animales, después de un periodo de adaptación de dos semanas, fueron pesados cada 14 días, durante 84 días. Para el análisis estadístico, se aplicó la prueba t de Student y análisis de varianza de medidas repetidas en el tiempo. La relación beneficio - costo, se obtuvo a través de la técnica del presupuesto parcial. El promedio de la ganancia diaria de peso difirió (P≤0.05) entre el grupo experimental (484g) y el testigo (346g). Los ingresos netos generados por el tratamiento experimental fueron de 80.462 pesos y para el testigo, 58.154. El incremento en el ingreso neto fue de 22.308 pesos, con una tasa de retorno marginal de 1,73 y un beneficio económico del grupo experimental sobre el testigo de 9.346 por animal. Se concluyó que el suplemento disminuyó el efecto negativo de la época seca sobre la ganancia de peso, además, de ser una alternativa económicamente viable.SUMMARY The aim of this research was to evaluate weight gain and the relation benefit - cost of lactating calves, managed under the dual purpose system, supplemented with cottonseed and molasses during the dry season in the Picacho farm in the Municipality of Monteria, Department of Cordoba, Colombia. 26 lactating crossbred calves were used, randomly divided in a control group of 13 animals that received the traditional farm management and an experimental group of 13 animals that received also the traditional farm management and supplement food based on cottonseed and molasses. After an adaptation of two weeks the calves were weighed every 14 days during 84 days. Student t test and analysis of repeated measures was used for the statistical analysis. The relation benefit - cost was obtained through the technique of partial budget. The average daily gain differed (P≤0,05) between the experimental group (484g) and the control (346g). Net incomes generated for the experimental treatment were 80462 pesos and for the control were 58154 pesos. The increase in net income was 22308 pesos, with a marginal return rate of 1,73 and an economic benefit of the experimental group on the control group of 9346 pesos per animal. In conclusion the supplement reduced the negative effect of the dry season on body weight gain and represents also an economically viable alternative.

Dois experimentos foram conduzidos com o objetivo de avaliar os efeitos da frequência de suplementação com duas fontes proteicas sobre o desempenho produtivo e econômico e o consumo e a digestibilidade dos nutrientes em bovinos em pastejo sob suplementação durante o período seco do ano. Foram utilizados 20 animais anelorados, não-castrados com 10 meses de idade e peso médio inicial de 208,43 kg, distribuídos em quatro piquetes de capim-marandu (Brachiaria brizantha, cv. Marandu), cada um com 1,6 ha. Ambos os experimentos foram estruturados em arranjo fatorial 2 × 2, com dois suplementos (com farelo de soja e com farelo de algodão de alta energia) e duas frequências de suplementação (diariamente ou três vezes por semana). Não houve interação fontes proteicas × frequências de suplementação para nenhuma das características de desempenho produtivo e econômico. As fontes proteicas não influenciaram o ganho médio diário, mas a frequência de fornecimento afetou o desempenho, que foi melhor nos animais sob suplementação três vezes/semana (0,670 kg/dia). O maior retorno econômico foi obtido com a oferta do suplemento com farelo de algodão três vezes por semana. A frequência de suplementação afetou o consumo de nutrientes, enquanto a fonte proteica do suplemento teve efeito somente sobre o consumo de extrato etéreo, que foi maior nos animais que consumiram o suplemento com farelo de algodão. O suplemento com farelo de algodão alta energia proporcionou maior digestibilidade da proteína bruta da dieta. O fornecimento de suplemento três vezes por semana, além de reduzir os custos da suplementação, possibilita desempenho superior ao obtido com a suplementação diária. A utilização do farelo de algodão de alta energia em suplementos múltiplos em substituição ao farelo de soja é satisfatória, principalmente do ponto de vista econômico.Two experiments were carried out with the objective of evaluating the effects of the frequency of supplementation with two proteins sources on productive and economical performance (experiment 1) and the nutrients digestibility of steers in supplemented pasture during the dry season over a year. It was used twenty weaned zebu calves at the age of 10 months and initial live weight (LW) of 208.43 kg, distributed in four paddocks of Brachiaria brizantha cv. Marandu, each one with 1.6 ha. Both experiments were structured in 2 × 2 factorial arrangement with two supplements (with soybean meal and high energy cottonseed meal). There was no protein sources × supplementation frequency interaction for any of the economical and productive performance traits. The protein sources didn't affect the daily average gain, but the frequency of supply affected performance, which was better in the animals under supplementation at three times a week (0.670 kg /day). The highest economic return was obtained with the offer of supplement with cottonseed meal three times a week. The frequency of supplementation affect the nutrients intake, while the protein source of the supplement had effect only on the ethereal extract intake, which was higher in the animals that consumed the supplement with cottonseed meal. The supplement with high energy cottonseed meal provided higher digestibility of diet crude protein. The supply of supplement three times a week, not only reduces the costs of supplementation, but it possibilities a higher performance than the one obtained with daily supplementation. The use of higher energy cottonseed meal in multiple supplements replacing soybean meal is satisfactory mainly under economical point of view.

Conduziu-se este trabalho, com o objetivo de avaliar o efeito da suplementação protéico-energética, durante o período das águas sobre o ganho de peso de bovinos mestiços (½ Nelore + ½ Blonde D'Aquitaine) mantidos em pastagem Brachiaria brizantha (A. Rich.) Stapf cv. Marandu. Avaliou-se a produção e a composição química da forragem. Foram utilizados 18 novilhos com peso médio de 181 kg, distribuídos em um delineamento em blocos ao acaso, em parcela subdividida, alocando o tratamento na parcela e o período na subparcela, com dois tratamentos e nove repetições; os tratamentos foram: sem suplementação (SS) e suplementados com concentrado em 0,6% do peso (SA). Foi verificado, durante o período das águas, aumento (P < 0,05) no ganho de peso dos novilhos (1,06 kg/dia) comparado aos novilhos que não receberam suplementação (0,77 kg/dia).This research was conducted to evaluate the energy and protein supplementation effects on the weight gain of crossbred steers (½ Nellore + ½ Blonde D'Aquitaine) maintained in Brachiaria brizantha (A. Rich.) Stapf cv. Marandu pasture, during the rainy season. Forage production and chemical composition were determined. Eighteen (18) steers with average body weight (BW) of 181 kg were evaluated and distributed in a randomized block design, in a split-plot scheme, allocating the plot and the sub-plot periods, with two treatments and six replications. Treatments were: no supplement (SS), supplementation with 0.6 % of BW (SA). During the rainy season, the supplementation increased the weight gain of the steers 1.06 kg/day (SA), compared to 0.77 kg/day (SS).

Avaliaram-se os efeitos do fornecimento de volumosos suplementares sobre o consumo, a produção e a composição físico-química do leite de cabras F1 (Boer ×Saanen). Utilizaram-se 18 cabras distribuídas em três baias, recebendo como suplemento, à vontade, silagem de sorgo, silagem de milho ou feno de amoreira com controle diário do consumo de matéria seca. A média diária para produção semanal foi calculada reunindo-se dados leiteiros em três períodos pós-parto: 1 (34 a 40 dias/7 dias); 2 [(64 a 70 dias/7 dias) + (91 a 97 dias)/7 dias)]/2; e 3 (125 a 131 dias/7 dias) e a média pontual diária do período pelas datas de referência dos períodos da média diária para produção semanal, que foi correlacionada à composição de gordura, proteína, lactose e extrato seco total e à contagem de células somáticas. Os dados semanais de acidez e densidade foram agrupados em 37, 81±13, 128 e 151±10 dias pós-parto. Com modelos mistos, o animal foi computado como aleatório e os efeitos fixos foram três suplementos e três períodos (composição, médias diárias as produções semanal e do período) ou quatro (acidez e densidade). O consumo de feno de amoreira (0,657 kg) superou o de silagem de milho (0,604 kg), que foi superior ao de silagem de sorgo (0,305 kg). No período 2, a composição em extrato etéreo foi menor, em razão do decréscimo de gordura e lactose. No período 3, a composição em proteína e a acidez aumentaram e a densidade foi maior nos períodos 1 (1,0270) e 3 (1,0277). A mamite aumentou a CCS no período 2. Para proteína, o tipo de suplemento não foi significativo, mas houve efeito da interação período pós-parto ×suplemento. As demais variáveis não foram influenciadas pelo tipo de suplemento, apenas pelo período pós-parto. O feno de amoreira aumenta o consumo suplementar pelas cabras em relação às silagens de milho e sorgo, mas não melhora as médias de produção e composição do leite. Cabras Boer ×Saanen em pastejo e sob suplementação têm bom potencial leiteiro.The effects were assessed of supplying supplementary roughage on intake, milk yield and milk physical and chemical composition in F1 (Boer ×Saanen) goats. Eighteen females were placed in three stalls, and received as ad libitum supplement sorghum silage, corn silage and mulberry hay (MHT), with daily control of dry matter intake. The average daily production per week was calculated by gathering the milk data in three post-parturition periods: 1 (34-40 days/7 days); 2 [(64-70 days/7 days) + (91-97 days)/7 days)]/2 and 3 (125-131 days/7 days). Daily spot-average of each period (DSAP) was calculated from the reference dates of average daily production per week, that was correlated with the composition of fat, protein, lactose, total solids composition and the somatic cell count. The weekly data for acidity and density were grouped in 37, 81±13, 128 and 151±10 days post-parturition. Using mixed models, the animal was computed as random and the fixed effects were three supplements and three periods (composition, average daily production per week and per period) or four (acidity and density). Mulberry hay intake (0.657 kg) was greater than corn silage (0.604 kg) that was greater than sorghum silage (0.305 kg). In period 2, the ether extract composition was smaller because of the decrease in fat and lactose. In period 3, protein and acidity increased and density was great in periods 1 (1.0270) and 3 (1.0277). Mastitis increased SCC in period 2. The type of supplement was not significant for protein, but there was post partum period ×supplement effect. The other variables were not influenced by the type of supplement, only by the post-partum period. Mulberry hay increased the supplement intake by the goats compared to corn and sorghum silage, but it did not improve milk yield = means and composition. Grazing Boer ×Saanen goats with supplementation have good milk production potential.

Objetivou-se avaliar os níveis de suplementação proteico-energética, oferecida em diferentes frequências, a animais em recria mantidos em pastagem de Bracharia decumbens na estação seca do ano. Foram utilizados 25 novilhos não-castrados, com peso inicial médio de 191 kg, distribuídos em delineamento de blocos casualizados, com cinco repetições por tratamento, em arranjo fatorial 2 × 2 + 1, ou seja, dois níveis de suplementação energético-proteica (0,3 e 0,6% em relação ao peso vivo (PV) do animal), duas frequências de fornecimento - diariamente ou em dias alternados (dia sim, dia não) - mais um tratamento adicional (apenas suplementação mineral). O consumo de matéria seca da forragem (CMSF) foi estimado utilizando-se os indicadores óxido crômico e matéria seca indigestível (MSi). O consumo de matéria seca do suplemento foi medido diariamente, uma vez que o suplemento foi fornecido individualmente. A suplementação aumentou o consumo de matéria seca total e o ganho médio diário (1,66% do PV e 290 g/dia) em comparação ao suplemento adicional (1,49% do PV e 107 g/dia de perda média diária de PV). Os consumos de matéria seca da forragem e de fibra em detergente neutro foram maiores nos animais que receberam apenas mistura mineral (1,48 e 1,1% do PV, respectivamente) e menores naqueles sob suplementação (1,27 e 0,95% do PV, respectivamente). A redução da ingestão de forragem não diferiu entre os níveis de suplementação (média 299 g/dia). No nível de 0,6% do PV, a suplementação promoveu o maior ganho médio diário, em comparação ao nível de 0,3% do PV (343 vs 238 g/dia), porém foi 39% menos eficiente para conversão de suplemento em ganho de peso. Nenhuma variável estudada foi alterada pelas frequências de suplementação. Em comparação à suplementação diária, a suplementação em dias alternados é viável nos níveis estudados.The objective of this study was evaluate the levels of protein-energy supplementation, offered at different frequencies, to growing steers kept on Brachiaria decumbens pasture during the dry season. Twenty-five no castrated steers were used, 191 kg initial average weight, in a randomized complete block design, with five replications per treatment in a 2 × 2 + 1 factorial arrangement, that is, two protein-energy supplementation levels (0.3 and 0.6% on the basis of body weight (BW)), two supplement distribution frequencies - daily or on alternate days, plus an additional treatment (only mineral supplementation). Forage dry matter intake (FDMI) was estimated using two markers, chromic oxide and indigestible dry matter (DMi). The dry matter intake of the supplement was measured daily because the supplement was offered to each steer individually. The supplementation increased dry matter intake and the average daily gain (ADG) (1.66% of BW and 290 g/day), compared to the additional supplement (1.49% of BW and -107 g/day). The herbage dry matter and neutral detergent fiber intake were greater animals supplemented only with mineral mixture (1.48 and 1.1% BW), and smaller for the supplemented ones (1.27 and 0.95% of BW), respectively. Forage intake reduction did not differ among the supplemented levels (299 g/day). The supplementation with 0.6% BW presented a better average daily gain than the 0.3% BW (343 versus 238 g/day), but it was 39% less efficient at converting the supplement into live weight gain. There was no effect of frequency on the variables studied. Supplementation on alternate days seems to be an interesting alternative for cattle feeding, regardless of the amount of supplement offered.

Com o objetivo de avaliar diferentes frequências de suplementação no período da seca foram utilizados 48 bovinos da raça Nelore com peso médio inicial de 320 kg, em pastagem de Brachiaria brizantha cv. Marandu, submetidos aos tratamentos: suplementação diária e suplementação três vezes por semana, a fim de avaliar o ganho médio diário de peso corporal dos animais nesse período. Os animais de ambos os tratamentos receberam, semanalmente 7,0 kg de suplemento animal-1 e foram pesados em intervalos de 28 dias. Os dados foram analisados pelo procedimento MIXED do SAS (2004) com medidas repetidasno tempo. Observou-se oferta de forragem média de 4,2 toneladas de MS ha-1, com teores médios de 3,5% de PB, 82,24% de FDN e 64,97% de FDA na forragem. Não foi observada diferença (p > 0,01) nos ganhos de peso médio diário entre os animais que receberam o suplemento diariamente (0,23 kg dia-1) e aqueles que receberam três vezes por semana (0,13 kg dia-1). Portanto, as frequências de suplementação não influenciaram no ganho diário de peso corporal dos animais no período da seca.This work was carried-out to evaluate different frequencies of supplementation during the dry season. Forty eight Nellore steers with 320 kg of initial body weight were kept on Brachiaria brizantha cv. Marandu pasture on continuous stocking rate. The animals were submitted to following treatments: daily supplementation andsupplementation three times a week. The animals of the both treatments received 7 kg of supplement weekly animal-1, and were weighted in intervals of 28 days. The data were analyzed by the procedure MIXED of the SAS (2004) with repeated measures in the time. It was observed average forage allowance of the 4.2 tons of DM ha-1, with 3.5% of CP, 82.24% NDF and 64.97% ADF. There was not difference (p > 0.01) among daily weight gains of animals that received daily supplementation and that received supplementation three times a week (0.23 and 0.13 kg day-1, respectively). Therefore, the supplementation intervals didn't influence on steer performance during dry season.

The objective of this work was to evaluate the in vitro degradation dynamics of neutral detergent fiber (NDF) of high-quality tropical forage according to supplementation with different nitrogenous compounds sources. A signal grass sample harvested during rainy season was used as basal forage. Casein was used as true protein source and urea:ammonium sulfate (U:AS, 9:1) mixture (urea) as non-protein nitrogen source. The first three supplements were the addition of 0.5, 1.0 and 2.0 mg of casein per mL of final incubation solution. The urea was added to the same amount of protein supplied by equivalent levels 0.5, 1.0 and 2.0 mg/mL of casein. In total, seven treatments were evaluated, including a control (only grass). The supplements were evaluated in a simulated rumen environment by in vitro incubation, and submitted to different incubation times: 0, 3, 6, 9, 12, 24, 36, 48, 72, and 96 hours. The procedure was repeated four times, making a total of four evaluations per incubation time for each treatment. The incubation residues were evaluated for NDF contents and interpreted through a non-linear logistic model. Casein supplementation of 0.5 mg/mL increased the degradation rate of potentially digestible NDF (kpdNDF) by 1.1%. The addition of 1.0 and 2.0 mg/mL of casein provided an inhibitory effect on the estimates of this parameter in comparison to the control (-6.4 and -9.1% respectively). Moreover, the addition of urea, regardless the supplementation level, increased kpdNDF around 7.6%. The ammonia nitrogen (AN) concentration in the medium was increased by supplementation. However, supplementation with urea, even based on the same crude protein levels used with the supplementation with casein, has given higher ammonia nitrogen values in the incubation medium.Objetivou-se avaliar a dinâmica de degradação in vitro da fibra em detergente neutro (FDN) de forragem tropical de alta qualidade em função de suplementação com compostos nitrogenados. Como forragem basal, utilizou-se amostra de capim-braquiária colhida durante a estação chuvosa; como fonte de proteína verdadeira, caseína (0,5; 1,0 e 2,0 mg/mL de solução final de incubação); e, como fonte de nitrogênio não-protéico, mistura uréia:sulfato de amônia (U:SA; 9:1) (uréia). A uréia foi adicionada considerando a mesma quantidade de equivalentes protéicos fornecidos pelos níveis 0,5; 1,0 e 2,0 mg/mL de caseína. No total, incluindo o controle (somente forragem), obtiveram-se sete tratamentos, que foram avaliados em ambiente ruminal simulado por incubação in vitro, durante 0, 3, 6, 9, 12, 24, 36, 48, 72 e 96 horas. O procedimento foi repetido quatro vezes, perfazendo quatro avaliações por tempo de incubação para cada tratamento. Os resíduos de incubação foram avaliados quanto ao teor de FDN e interpretados por modelo logístico não-linear. A suplementação com caseína no nível 0,5 mg/mL aumentou em 1,1% a taxa de degradação da FDN potencialmente degradável (kFDNpd), enquanto, nos níveis 1,0 e 2,0 mg/mL, observou-se efeito inibitório sobre as estimativas deste parâmetro (-6,4 e -9,1%, respectivamente). Por outro lado, a adição isolada de uréia ao meio, independentemente do nível, ampliou em média 7,6% a kFDNpd. A concentração de nitrogênio amoniacal (NA) no meio aumentou com a suplementação, contudo, considerando-se os mesmos níveis de proteína bruta obtidos com a suplementação com caseína, a suplementação com uréia conferiu valores superiores de nitrogênio amoniacal ao meio de incubação.

Este trabalho teve por objetivo avaliar o desempenho de novilhos de corte em pastagem nativa (PN), suplementados com níveis de farelo de arroz integral (FAI) de 0; 0,5; 1,0 e 1,5% do peso vivo dos animais, num delineamento inteiramente casualizado em parcelas subdivididas, durante 126 dias. Na parcela principal, foram alocados os níveis de suplemento e, nas subparcelas, os períodos de tempo (6 períodos de 21 dias). A suplementação foi oferecida de forma individual, duas vezes por dia, às 7h e às 15h:30min. O método de pastejo empregado foi o contínuo com lotação fixa e carga variável. As médias encontradas para proteína bruta foram de 6,8 e 14,9%, e para os coeficientes de digestibilidade "in vitro" da matéria orgânica, foram de 59,54 e 71,47% na PN e no FAI, respectivamente (dados expressos na matéria seca). Os ganhos médios diários dos animais foram de 0,35; 0,55; 0,53; e 0,63kg animal-1 dia-1 para os níveis de inclusão de farelo de arroz de 0; 0,5; 1,0 e 1,5% do peso vivo dos animais, diferindo entre animais suplementados e não-suplementados. Os resultados de rendimento e peso de carcaça fria dos animais não diferiram entre os tratamentos. A suplementação com FAI nos níveis entre 0,5 a 1,5% proporcionou incremento no ganho médio diário de aproximadamente 60%, quando comparado com os animais que não receberam suplemento.This study was aimed at investigating steers performance on native pasture supplemented with levels of full fat rice bran: 0; 0.5; 1.0 and 1.5% of body weight of the animals, in a completely randomized design, with a split plot arrangement, during 126 days. In main plots were allocated the levels of supplement and in a split plot, the periods of time (6 periods of 21 days each). The supplementation was individual, offered twice a day, at 7am and 3.3pm. The system of pasture was continuous grazing with fix stocking density and variable stocking rate. The average percent of crude protein were 6.8% and 14.9% and the in vitro digestibility coefficients were 59.54% and 71.47% in native pasture and rice bran, respectively (in the dry matter). The live weight gains of the animals were 0.35; 0.55; 0.53 and 0.63kg d-1 with the rice bran daily inclusion of 0.0; 0.5; 1.0 and 1.5% of the animals live weigh differing only when it was considered the use or not use of the supplement. The carcass yield and weigh do not differ among the treatments. The supplementation with full fat rice bran in the levels between 0.5% and 1.5% of live weight proportioned an increase on the live weigh gain of approximately 60% when compared with the animals that did not receive supplement.

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