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Honey is a natural product extensively consumed in the world for its nutritional and healthy properties. However, residues of pesticides and environmental contaminants can compromise its quality. For this reason, the physicochemical parameters, and the organic contamination of monofloral and multifloral honey from three regions of Algeria (Tiaret, Laghouat, and Tindouf) were monitored to evaluate the quality of the honey and its safety for consumers. In general, the results obtained from the physicochemical analyses were in line with the EU standards. In terms of contamination, pesticides authorised and used in Algerian agriculture (metalaxyl-M and cyromazine), as well as a banned pesticide (carbaryl), were found in almost all the samples. However, only the concentration of cyromazine was higher than the relative EU maximum residue levels. PCB 180, PCB 189, anthracene, fluorene, and phenanthrene were mainly detected. All the honey shows traces of DiBP, DBP, DEHP, and DEHT, but no traces of bisphenols were found. Moreover, according to the dietary exposure assessment, a small amount of Algerian honey can be safely consumed. Overall, the data from this study should motivate the Algerian government to enhance their monitoring activities in beekeeping and to find solutions for implementing more sustainable agricultural practices harmonising with international legislation. [ABSTRACT FROM AUTHOR]

The aim of this study was to assess the effects of Saccharomyces cerevisiae supplementation on the metabolic profile of brood mares, raised in Tiaret Algeria. Ninety pregnant mares were used between 2013 and 2015. Animals were assigned to treatment’s group and to a control group, the mares were fed with corn, soybean meal, barley, wheat bran, and the second (yeast group) was supplemented with 10g alive yeast (Saccharomyces cerevisiae 47) daily from 300 Day of gestation to 30 days postfoaling. For biochemical analyses, jugular blood samples were collected. Each mare was collected five times, 30 days (F-30), 15 days (F-15) before foaling, at the foaling day (F), at 15 (F+15) and 30 days after foaling (F+30). to determine the following parameters, glucose, urea, creatinine, total proteins, cholesterol, triglyceride, albumin, Aspartate Amino-Transferase(AST), Alanine Amino-Transferase (ALT), Gamma-Glutamyl-Transferase (γ-GT), Calcium and inorganic phosphorus. In this study, the serum glucose mean values were significantly higher (p<0,05) at F+30 with 0,85±0,16 g/l in the treatment group against 0,73±0,09 g/l in the control one. In this study, urea serum levels at F-15 and at foaling were significantly lower (p<0,05) in the treatment group with 0,24±0,05 g/l and 0,27±0,05 g/l respectively against 0,33±0,10 g/l and 0,38±0,12 g/l respectively in the control one. This experiment showed that adding Saccharomyces cerevisiae to mare’s meal in the peripartum period enhanced the metabolism of glucose and proteins and decreased urea serum levels. [ABSTRACT FROM AUTHOR]

The aim of this study was to evaluate the effect of extender supplementation with different concentrations of Algerian honey on post-thawed sperm motility, and viability. Sperm samples collected from Arabe-Barbe staillons were subjected to cryopreservation with a modified Kenney, without any supplementation (control) or supplemented with 1%, 2%, 3%, 4% and 5% of Algerian honey. After thawing, all samples were maintained at 37 °C, while analyses were performed at 0, 30', 60' and 120'. Sperm motility percentage, and viability index percentage, of each sample were determined by conventional laboratory methods. Compared to the control group, supplementation with Algerian honey (2% and 3% significantly improved post-thaw sperm motility, at 0, 30', 60' and 120'. For all semen parameters, the lower concentration of honey (1%) and higher concentration (4% and 5%) did not show any significant differences compared with the control. These works showed that extender supplementation with Algerian honey provided a good protection of sperm parameters against cryopreservation injury, in comparison to the control groups. [ABSTRACT FROM AUTHOR]

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