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In the commercial poultry chain, a great diversity of production systems is found to meet the needs of the market, since the consumer has become increasingly aware of the importance of the relationship between diet and health, which has encouraged researchers and the food industry to develop products enriched with nutrients capable of producing beneficial effects on health. There has been increasing progress in research aimed at including viable alternative products, such as plant extracts, in poultry diets, which have been shown to have an antimicrobial and antioxidant action and to promote improvements in animal performance. Turmeric (Curcuma longa L.) is a popular medicinal herb, which shows a wide range of pharmacological properties, such as antioxidant, antiangiogenic, antitumor, antivenom, antinflammatory, antimicrobial, antiproliferative, antiprotozoal, and antiaging. The use of turmeric in poultry production has been reported by many researchers. The aim of this review is to describe and report the most recent research on the use of turmeric as feed supplement for birds and so its effect on animal health and welfare.

A 112-day experiment was conducted to evaluate turmeric and vitamin E levels on the productive performance and quality of hen eggs. A total of 432 20-week-old white layers were used, distributed in an entirely randomized design, in a 4 × 3 factor scheme (turmeric extract levels and vitamin E levels), with 6 repetitions of 6 birds per cage. The treatments consisted of four levels of turmeric extract inclusion (0; 0.1; 0.2 and 0.3) and three levels of vitamin E inclusion (0; 50 and 100 IU/kg). Egg quality was evaluated at each 28-day cycle through the variables specific gravity, yolk percentage, albumen percentage, shell percentage and thickness, Haugh unit, yolk index and staining, and production performance: weight, egg production and mass, feed intake, feed conversion (kg/kg; kg/dz), and mortality. The addition of vitamin E alone worsened feed intake, egg weight and feed conversion of layers. Turmeric added to 100 IU of Vit E improved egg mass indices, Haugh Unit and yolk index and intensified yolk staining. The amount of turmeric used in this experiment was not sufficient to improve the performance or egg quality of the birds.

A 112-day experiment was conducted to economically evaluate the production of eggs from commercial layers submitted to diets supplemented with levels of plant extracts (dried turmeric powder) added or not to vitamin E. A total of 432 20-week-old white layers were used, distributed in an entirely randomized design, in a 4 × 3 factor scheme (turmeric extract levels and vitamin E levels), with 6 repetitions of 6 birds per cage. The treatments consisted of four levels of turmeric extract inclusion (0; 0.1%; 0.2% and 0.3%) and three levels of vitamin E inclusion (0; 50 and 100 IU/kg). The results calculated at work were favorable to the activity, and the items that most influenced the expenses in the effective production cost were: poultry, feed and labor, respectively. The best economic response in egg production was obtained by layers that consumed 100 IU/kg vitamin E and 0.2% turmeric; because the leveling point represents that the activity equals the revenues with the costs. The best profitability index was found in treatment that contained 50 IU/kg vitamin E and 0.1% turmeric com (16.78%).

Made available in DSpace on 2018-11-26T15:44:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-06-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) We investigated the effects of a combination of protease, xylanase, and phytase in maize- or sorghum-based diets for broilers. Two experiments were conducted with male chicks randomly distributed in a 3 x 2 factorial arrangement with three replacement levels of maize with sorghum (0%, 50%, and 100%) with or without enzymes. In the first trial, 1152 chicks were allotted to 36 floor pens to determine performance, relative organ weight, and litter moisture. A second trial was performed with 150 and 120 chicks allotted in 30 cages with five and four broilers per cage to determine nutrient and energy utilization from 11 to 21 d and from 25 to 35 d, respectively. Enzyme supplementation improved body-weight gain and feed conversion ratio. Total maize replacement with sorghum compromised body-weight gain from 1 to 14 d and from 1 to 35 d. Nitrogen retention was reduced by partial and total maize replacement with sorghum at starter phase and by total replacement at grower phase. Enzyme supplementation improved nitrogen retention at starter phase and apparent metabolizable energy at starter and grower phases. Therefore, partial maize replacement with sorghum is viable and on top application of an enzyme blend containing protease, xylanase, and phytase improves performance and nutrient retention of broilers. Sao Paulo State Univ, Dept Breeding & Anim Nutr, Coll Vet Med & Anim Sci, BR-18618970 Botucatu, SP, Brazil APTA Reg, Reg Res Pole, BR-17380000 Brotas, SP, Brazil Sao Paulo State Univ, Dept Breeding & Anim Nutr, Coll Vet Med & Anim Sci, BR-18618970 Botucatu, SP, Brazil FAPESP: 2012/18419-5

This study was developed to evaluate the effect of adding natural pigments on the storage of eggs from laying hens in the second production cycle submitted to diets based on corn and low-tannin sorghum. A total of 160 eggs from Hy-Line Brown laying hens at 90 - weeks old after forced molting were used. The study evaluated the isolated effect and the interaction of two factors: the inclusion of natural pigments (control diet - 50% low-tannin sorghum replacing the corn; RC - 2% powdered dry turmeric rhizome; PU - 2% dry annatto powder; RCPU - 1% turmeric rhizome + 1% dry annatto powder) combined with the storage period (0, 3, 7, 14 and 21 days). The studied variables were: specific gravity, percentages of yolk, albumen and shell in relation to the egg weight, and yolk color. Yolk color was more intense with increasing percentage of annatto. The inclusion of 2% annatto powder promotes and maintains an adequate pigmentation of egg yolk when stored for up to 21 days. Regardless of natural pigment supplementation, the egg quality decreases as storage time increases.

Com o objetivo de avaliar o efeito da debicagem e do tipo de bebedouro sobre o desempenho produtivo de codornas japonesas, 672 fêmeas de codornas de um dia foram usadas em um delineamento inteiramente casualizado e distribuídas em um dos três tratamentos como não-debicagem; debicagem até 1/3 dos bicos; e cauterização, com oito repetições de 28 aves na fase de cria. As aves foram debicadas aos 21 dias de idade e, no 35 dia, foram avaliados o ganho de peso, o consumo de ração, a conversão alimentar e a taxa de mortalidade. Aos 39 dias, 576 codornas foram remanejadas para gaiolas de postura, distribuídas em esquema fatorial 3 × 2, composto de três tipos de debicagem e dois tipos de bebedouro (taça e nipple), de modo que cada combinação foi avaliada com quatro repetições de 24 aves. A fase de produção teve início quando as aves atingiram 50% de produção de ovos, aos 60 dias de idade. As codornas submetidas a debicagem por cauterização apresentaram menor ganho de peso e menor consumo de ração na fase de cria. O estresse pela dor com a debicagem por cauterização pode justificar não só o menor consumo e o menor ganho de peso, como também a maior mortalidade. Infere-se que este método, por ser mais demorado, tenha provocado mais dor e maior nível de estresse, piorando o desempenho das aves. A debicagem de 1/3 dos bicos cortados pode ter ocasionado estresse menos intenso às aves, não interferindo no desempenho. Não se observaram diferenças no desempenho das aves e na qualidade de ovos entre os tipos de bebedouro e métodos de debicagem utilizado na fase de produção. O método de debicagem por cauterização influencia o desempenho de codornas na fase de cria, mas, na fase de produção, assim como o tipo de bebedouro utilizado, não interfere no desempenho das aves nem na qualidade de ovos. A total of 672 one day old- female quails was allotted to a completely randomized experimental design, with three treatments (non-trimmed birds; 1/3 of the beak trimmed and cauterized beak), 8 replicates of 28 birds to evaluate the effect of beak trimming and drinking system on productive performance. The birds were beak trimmed at 21 days of age, and at day 35 the weight gain, feed intake, feed conversion and mortality were evaluated. At day 39, 576 quails were transfered to laying cages, and assigned to a 3x2 factorial arrangement, to evaluate three beak trimming methods and two drinking systems (cup and nipple) by using four replicates of 24 birds each. The production phase started when the birds reached 50% egg production, at 60 days of age. The quails submitted to beak trimming by cauterization showed smaller weight and lower feed intake during the initial period. Stress pain due to the cauterized beak can justify not only lower feed intake and lower weight gain, but also increased mortality. It can be inferred that once this method takes more time it has caused more pain and higher levels of stress, worsening the performance of birds. The trimmed to 1/3 of the beaks cut can have caused stress to the birds less intense, without effect on performance. No differences on bird performance and egg quality were observed between drinking systems and beak trimming during the laying phase. In the initial phase, beak trimming system reduced performance, however, during the production phase, both drinking and beak trimming systems do not affect performance and egg quality of Japanese quails.

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:07:47Z No. of bitstreams: 1 S1516-35982011000900017.pdf: 208627 bytes, checksum: f26c19d6224003e576e466766b4de192 (MD5) Made available in DSpace on 2013-08-22T19:07:47Z (GMT). No. of bitstreams: 1 S1516-35982011000900017.pdf: 208627 bytes, checksum: f26c19d6224003e576e466766b4de192 (MD5) Previous issue date: 2011-09-01 Made available in DSpace on 2013-09-30T20:12:30Z (GMT). No. of bitstreams: 2 S1516-35982011000900017.pdf: 208627 bytes, checksum: f26c19d6224003e576e466766b4de192 (MD5) S1516-35982011000900017.pdf.txt: 29181 bytes, checksum: 355457e3339cc718b9debedecc5bf71f (MD5) Previous issue date: 2011-09-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:18:21Z No. of bitstreams: 2 S1516-35982011000900017.pdf: 208627 bytes, checksum: f26c19d6224003e576e466766b4de192 (MD5) S1516-35982011000900017.pdf.txt: 29181 bytes, checksum: 355457e3339cc718b9debedecc5bf71f (MD5) Made available in DSpace on 2014-05-20T15:18:21Z (GMT). No. of bitstreams: 2 S1516-35982011000900017.pdf: 208627 bytes, checksum: f26c19d6224003e576e466766b4de192 (MD5) S1516-35982011000900017.pdf.txt: 29181 bytes, checksum: 355457e3339cc718b9debedecc5bf71f (MD5) Previous issue date: 2011-09-01 O objetivo neste trabalho foi avaliar o peso vivo, o peso de pernas, os aspectos morfológicos das fibras musculares do músculo flexor longo do hálux e o perfil eletroforético das miosinas de cadeia pesada de quatro linhagens de frangos de corte criados nos sistemas de confinamento e semiconfinamento. Foram utilizados 1.440 pintos distribuídos em delineamento inteiramente casualisado em esquema fatorial 4 × 2, composto de quatro linhagens (Ross 305, Máster Gris, Label Rouge e Vermelhão Pesado) e dois sistemas de criação (confinamento e semiconfinamento), cada combinação avaliada com quatro repetições. Aos 28 e 84 dias de idade, foram abatidas quatro aves por tratamento, totalizando 64 aves. A eletroforese identificou a presença das três isoformas de miosinas, tipo MyHC-I, MyHC-IIa e MyHC-IIb, no músculo flexor longo do hálux dos frangos de corte. Com aumento da idade, a isoforma de miosina MyHC-II aumenta, enquanto a MyHC-I diminui. Somente aos 84 dias de idade, a expressão das isoformas de miosina do tipo MyHC-II foram influenciadas pela linhagem, confirmando o reflexo da seleção na linhagem Ross no músculo mais glicolítico.A linhagem Ross apresenta maior peso vivo, peso de perna, peso e área do músculo flexor longo do hálux em comparação às linhagens tipo caipira. The objective was to evaluate body weight, leg weight and morphologic aspects of the muscle fibers of the flexor hallucis longus muscle and electrophoretic profile of myosin heavy chain of four strains of broilers, reared in confinement and semi-confinement systems. 1440 chicks were randomly assigned in a 4 × 2 factorial arrangement: four strains (Ross 305, Master Gris, Label Rouge and Vermelhao Pesado), two production systems (confinement and semi-confinement), with four replicates for each treatment. Four birds were sacrificed for each treatment, at 28 and 84 d, totaling 64 animals. Electrophoresis technique identified the presence of three myosin heavy chain types: MyHC-I, MyHC-IIa and MyHC-IIb, in the flexor hallucis longus muscle of the broilers. There was increase in MyHC-II and decrease in MyHC-I, as age passed. Only at 84 days-old was the MyHC-II expression influenced by strain, confirming a response of selection in Ross lineage on a more glycolytic muscle. The Ross lineage has higher live weight, leg weight, weight and area of the flexor hallucis longus, compared to different chicken strains. Universidade Estadual Paulista UNICAMP Universidade Estadual Paulista

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:40:19Z No. of bitstreams: 1 S1516-635X2011000200004.pdf: 803840 bytes, checksum: c7dd3536b912c6e3e62e2234fa668010 (MD5) Made available in DSpace on 2013-08-22T18:40:19Z (GMT). No. of bitstreams: 1 S1516-635X2011000200004.pdf: 803840 bytes, checksum: c7dd3536b912c6e3e62e2234fa668010 (MD5) Previous issue date: 2011-06-01 Made available in DSpace on 2013-09-30T18:00:24Z (GMT). No. of bitstreams: 2 S1516-635X2011000200004.pdf: 803840 bytes, checksum: c7dd3536b912c6e3e62e2234fa668010 (MD5) S1516-635X2011000200004.pdf.txt: 39994 bytes, checksum: acd8d2b277d7080c571e190ddd18d9b9 (MD5) Previous issue date: 2011-06-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:17:44Z No. of bitstreams: 2 S1516-635X2011000200004.pdf: 803840 bytes, checksum: c7dd3536b912c6e3e62e2234fa668010 (MD5) S1516-635X2011000200004.pdf.txt: 39994 bytes, checksum: acd8d2b277d7080c571e190ddd18d9b9 (MD5) Made available in DSpace on 2014-05-20T13:17:44Z (GMT). No. of bitstreams: 2 S1516-635X2011000200004.pdf: 803840 bytes, checksum: c7dd3536b912c6e3e62e2234fa668010 (MD5) S1516-635X2011000200004.pdf.txt: 39994 bytes, checksum: acd8d2b277d7080c571e190ddd18d9b9 (MD5) Previous issue date: 2011-06-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) This study aimed at evaluating the effect of dietary calcium levels and the replacement of calcium sources with different particle size compositions on the performance and egg quality of brown layers in their second egg production cycle. A randomized block experimental design was applied with 12 treatments in a 3x4 factorial arrangement: three calcium levels (2.6, 3.2, 3.8 %) and four combinations of calcium sources (1- 100% fine limestone (FL), 2- 50% FL + 50% coarse limestone (CL), 3- 50% FL and 50% oyster shell (OS), 4- 50% FL and 25% CL+ 25 %OS), with six replicates of eight birds each. Calcium sources were analyzed for geometric mean diameter (GMD) and in-vitro solubility. The following performance and egg quality parameters were evaluated: egg weight (EW, g), egg production (% Eggs), egg mass (EM %), feed intake (FI g), feed conversion ratio (FCR kg/dz and FCR kg/kg), mortality (% Mort.), specific egg gravity (SG), percentages of yolk (Y%), albumen (Alb%) and eggshell (ES%), eggshell thickness (EST), eggshell breaking strength (BS), eggshell weight per surface area (EWSA), Haugh unit (HU), yolk index (YI) and yolk color. Performance and internal egg quality were not affected by the treatments (p>0.05). Blocks had a significant effect on (p

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:07:39Z No. of bitstreams: 1 S1516-35982010001000017.pdf: 53052 bytes, checksum: 24ce8d9b119567fb010ac7dab91a1a50 (MD5) Made available in DSpace on 2013-08-22T19:07:39Z (GMT). No. of bitstreams: 1 S1516-35982010001000017.pdf: 53052 bytes, checksum: 24ce8d9b119567fb010ac7dab91a1a50 (MD5) Previous issue date: 2010-10-01 Made available in DSpace on 2013-09-30T20:12:15Z (GMT). No. of bitstreams: 2 S1516-35982010001000017.pdf: 53052 bytes, checksum: 24ce8d9b119567fb010ac7dab91a1a50 (MD5) S1516-35982010001000017.pdf.txt: 42103 bytes, checksum: 7cad5df94d089567e09f730520f5cf75 (MD5) Previous issue date: 2010-10-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:40:21Z No. of bitstreams: 2 S1516-35982010001000017.pdf: 53052 bytes, checksum: 24ce8d9b119567fb010ac7dab91a1a50 (MD5) S1516-35982010001000017.pdf.txt: 42103 bytes, checksum: 7cad5df94d089567e09f730520f5cf75 (MD5) Made available in DSpace on 2014-05-20T13:40:21Z (GMT). No. of bitstreams: 2 S1516-35982010001000017.pdf: 53052 bytes, checksum: 24ce8d9b119567fb010ac7dab91a1a50 (MD5) S1516-35982010001000017.pdf.txt: 42103 bytes, checksum: 7cad5df94d089567e09f730520f5cf75 (MD5) Previous issue date: 2010-10-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) O objetivo neste trabalho foi avaliar o desempenho e o rendimento de carcaça e das partes de quatro linhagens de frangos de corte criados em sistemas de confinamento e semiconfinamento. Foram utilizados 1.440 pintos distribuídos em delineamento inteiramente casualisado com esquema fatorial 4 õ 2, composto de quatro linhagens (Ross 308, Máster Griss, Label Rouge e Vermelhão Pesado) e dois sistemas de criação (em confinamento e semiconfinamento), cada um com quatro repetições de 45 aves. Aos 84 dias de idade, foram abatidas quatro aves por repetição, totalizando 128 aves, para avaliação do rendimento de carcaça e das partes. O acesso ao piquete (semiconfinamento) não influenciou o desempenho nem o rendimento de carcaça das linhagens, exceto o rendimento de gordura abdominal, que foi mais baixo nas aves semiconfinadas. Considerando apenas aves das linhagens tipo colonial, a Máster Griss e Vermelhão Pesado tiveram melhores resultados de peso e a Label Rouge, melhor conversão alimentar. Os frangos tipo colonial Máster Griss, Label Rouge e Vermelhão Pesado, em comparação aos da linhagem comercial Ross, apresentaram maior rendimento de partes, exceto de peito e carne de peito, que foram maiores na linhagem Ross. A escolha da linhagem deve ser feita de acordo com o interesse de mercado, pois há diferenças no desempenho e no rendimento de carcaça e das partes. The objective of this work was to evaluate performance and carcass and dressing yields of four broiler chicken lineages raised in confined and semi-confined systems. It was used 1,440 chicks distributed in a random block design with a 4 õ 2 factorial scheme, composed of lineage types (Ross 308, Máster Griss, Label Rouge and Vermelhão Pesado) and two production systems (confinement and semi-confinement), each one with four replications with 45 birds. At 84 days of age, four birds of each repetition were slaughtered, totaling 128 birds, for evaluation of carcass and dressing yields. Access to the paddock (semi-confinement) did not affect performance neither the yield of the carcass of the lineages, except abdominal fat yield, which was the lowest in the semi-confined birds. Considering only birds of colonial lineage, Máster Griss and Vermelhão Pesado showed the best results for weight and Label Rouge, the best feed intake. Broilers of Master Griss, Label Rouge and Vermelhão Pesado, compared to the Ross commercial lineage, showed the highest dressing yield, except for breast and breast meat, which were the highest in Ross lineage. Choice of lineage must be done accordingly to the market interest, since there are differences on performance and yield of dressing and carcass. Universidade Estadual Paulista Fac. de Medicina Veterinária e Zootecnia Agência Paulista de Tecnologia dos Agronegócios Unidade de Pesquisa e Desenvolvimento de Brotas Universidade Estadual Paulista Fac. de Medicina Veterinária e Zootecnia

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T19:07:01Z No. of bitstreams: 1 S1516-35982006000800018.pdf: 1928548 bytes, checksum: e44381ee208d0a07570f76577e6b6700 (MD5) Made available in DSpace on 2013-08-22T19:07:01Z (GMT). No. of bitstreams: 1 S1516-35982006000800018.pdf: 1928548 bytes, checksum: e44381ee208d0a07570f76577e6b6700 (MD5) Previous issue date: 2006-12-01 Made available in DSpace on 2013-09-30T18:27:13Z (GMT). No. of bitstreams: 2 S1516-35982006000800018.pdf: 1928548 bytes, checksum: e44381ee208d0a07570f76577e6b6700 (MD5) S1516-35982006000800018.pdf.txt: 50547 bytes, checksum: 5dddcd64efbf3d6e28178cf0ac8636a7 (MD5) Previous issue date: 2006-12-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:40:34Z No. of bitstreams: 2 S1516-35982006000800018.pdf: 1928548 bytes, checksum: e44381ee208d0a07570f76577e6b6700 (MD5) S1516-35982006000800018.pdf.txt: 50547 bytes, checksum: 5dddcd64efbf3d6e28178cf0ac8636a7 (MD5) Made available in DSpace on 2014-05-20T13:40:34Z (GMT). No. of bitstreams: 2 S1516-35982006000800018.pdf: 1928548 bytes, checksum: e44381ee208d0a07570f76577e6b6700 (MD5) S1516-35982006000800018.pdf.txt: 50547 bytes, checksum: 5dddcd64efbf3d6e28178cf0ac8636a7 (MD5) Previous issue date: 2006-12-01 Avaliou-se o efeito da linhagem, do sistema de criação e do sexo sobre o peso vivo, o rendimento de carcaça e de pernas e os aspectos morfológicos das fibras musculares esqueléticas do músculo flexor longo do hálux de frangos de corte. O delineamento experimental foi inteiramente casualizado, em esquema fatorial 4 x 2 x 2, ou seja, quatro linhagens (Ross-308, Pescoço Pelado Label Rouge, Caipirinha e Paraíso Pedrês), dois sistemas de criação (confinamento e semiconfinamento) e dois sexos, com duas repetições por tratamento, sendo que cada ave retirada ao acaso aos 56 dias de idade foi considerada uma unidade experimental, totalizando 64 aves. A linhagem Ross apresentou maior peso vivo e maiores pesos de carcaça, de pernas, de carne de penas e do músculo flexor longo do hálux e maiores rendimentos de carcaça e de carnes de pernas que as outras linhagens. A maior massa muscular das aves selecionadas para alta taxa de crescimento está relacionada ao aumento na área dos três tipos de fibras musculares (SO, FOG e FG). Machos apresentaram maior massa muscular e musculatura mais glicolítica que fêmeas. O sistema de semiconfinamento alterou a composição de fibras musculares esqueléticas dos machos, tornando-a mais oxidativa, porém, esse efeito não foi observado nas fêmeas. The effect of strain, breeding system and sex on body weight, carcass and leg yield, and morphologic aspects of skeletal muscle fibers of flexor hallucis longus muscle of broiler chickens was evaluated in this study. The experiment consisted of a 4x2x2 factorial arrangement of treatments, with four strains (Ross-308, Naked Neck Label Rouge, Caipirinha and Paraiso Pedrês), two breeding systems (confinement and semi-confinement) and two sexes, with two replicates per treatment, considering each bird selected randomly at 56 days of age an experimental unit, with a total of 64 birds. Ross strain had the highest values of body weight, weights of legs and meat of legs and weight of flexor hallucis longus muscle and highest values of carcass yield and meat of leg yield. The higher muscle mass of birds selected for high growth is related to an increase in the area of the three types of muscle fibers evaluated (SO, FOG and FG). Males presented higher muscle mass and a musculature higher in fast-glycolityc-type fibers than females. Semi-confined system modified the composition of skeletal muscle fibers of males, increasing the oxidative-type fibers. However this effect was not observed in females. Universidade Estadual Paulista FMVZ Programa de Pós-Graduação em Zootecnia Universidade Estadual Paulista FMVZ Departamento de Melhoramento e Nutrição Animal APTA Unidade de Pesquisa e Desenvolvimento de Brotas Universidade Estadual Paulista IBB Departamento de Morfologia Universidade Estadual Paulista FMVZ Departamento de Produção e Exploração Animal Universidade de Caldas Universidade Estadual Paulista FMVZ Programa de Pós-Graduação em Zootecnia Universidade Estadual Paulista FMVZ Departamento de Melhoramento e Nutrição Animal Universidade Estadual Paulista IBB Departamento de Morfologia Universidade Estadual Paulista FMVZ Departamento de Produção e Exploração Animal

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:40:10Z No. of bitstreams: 1 S1516-635X2006000200007.pdf: 94098 bytes, checksum: e03ce22a48d94dca95c457cce54cfc68 (MD5) Made available in DSpace on 2013-08-22T18:40:10Z (GMT). No. of bitstreams: 1 S1516-635X2006000200007.pdf: 94098 bytes, checksum: e03ce22a48d94dca95c457cce54cfc68 (MD5) Previous issue date: 2006-06-01 Made available in DSpace on 2013-09-30T19:25:21Z (GMT). No. of bitstreams: 2 S1516-635X2006000200007.pdf: 94098 bytes, checksum: e03ce22a48d94dca95c457cce54cfc68 (MD5) S1516-635X2006000200007.pdf.txt: 27423 bytes, checksum: 270e7647955283aa2f05b4fcee4eb219 (MD5) Previous issue date: 2006-06-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:41:02Z No. of bitstreams: 2 S1516-635X2006000200007.pdf: 94098 bytes, checksum: e03ce22a48d94dca95c457cce54cfc68 (MD5) S1516-635X2006000200007.pdf.txt: 27423 bytes, checksum: 270e7647955283aa2f05b4fcee4eb219 (MD5) Made available in DSpace on 2014-05-20T13:41:02Z (GMT). No. of bitstreams: 2 S1516-635X2006000200007.pdf: 94098 bytes, checksum: e03ce22a48d94dca95c457cce54cfc68 (MD5) S1516-635X2006000200007.pdf.txt: 27423 bytes, checksum: 270e7647955283aa2f05b4fcee4eb219 (MD5) Previous issue date: 2006-06-01 This study aimed at evaluating the effect of total replacement of dry corn by wet grain corn silage (WGCS) in the feed of label broilers older than 28 days of age on performance, mortality, carcass, parts, breast meat and thighs meat yields, and meat quality. A mixed-sex flock of 448 ISA S 757-N (naked-neck ISA JA Label) day-old chicks was randomly distributed in to randomized block experimental design with four treatments (T1 - with no WGCS; T2 - WGCS between 28 and 83 days; T3 - WGCS between 42 and 83 days; and T4 - WGCS between 63 and 83 days) and four replicates of 28 birds each. Birds were raised under the same management and feeding conditions until 28 days of age, when they started to have free access to paddock with pasture (at least 3m²/bird) and to be fed the experimental diets. Feed and water were offered ad libitum throughout the rearing period, which was divided in three stages: starter (1 to 28 days), grower (29 to 63 days), and finisher (64 to 83 days) according to the feeding schedule. During the short periods of WGCS use (group T2 during grower stage and T4 during the finisher stage), performance and mortality results were similar as to those of the control group (T1). At the end of the experiment, it was observed that the extended use of WGCS (T2 and T3) determined a negative effect on feed conversion ratio. However, the best results of breast meat yield were observed with birds fed WGCS since 28 days (T2). It was concluded that WGCS can replace dry corn grain for short periods during the grower and finisher stages with no impairment of meat quality and yield in slow growth broilers. Agência Paulista do Agronegócio UNESP School of Veterinary Medicine and Animal Science Department of Animal Production UNESP School of Veterinary Medicine and Animal Science Universidade Católica Dom Bosco (UCDB) UNESP School of Veterinary Medicine and Animal Science Department of Animal Production UNESP School of Veterinary Medicine and Animal Science