title: Influence of dietary nano elemental selenium on growth performance, tissue selenium distribution, meat quality, and glutathione peroxidase activity in Guangxi Yellow chicken.
abstract: This experiment was designed to investigate the effect of feed supplementation with nano elemental Se (Nano-Se) on growth performance, tissue Se distribution, meat quality, and glutathione peroxidase (GSH-Px) activity in Guangxi Yellow chicken. Four treatments (control, T-1, T-2, and T-3 treatment groups) with 3 replicates of 30 chickens each were carried out. Diets for the control, T-1, T-2, and T-3 groups consisted of the basal diet supplemented with, respectively, 0.00, 0.10, 0.30, and 0.50 mg/kg of Nano-Se. Improved final BW, daily BW gain (DWG), feed conversion ratios, and survival rate (P < 0.05) were observed in the groups supplemented with Nano-Se as compared with the control groups after 90 d of feeding. The groups that received Nano-Se showed higher (P < 0.05) hepatic and muscle Se contents, drip loss percentage, inosine 5'-monophosphate content, and GSH-Px activities in the serum and liver than that did the control groups. For the T-2 and T-3 groups, a significant difference (P < 0.05) was observed in final BW, DWG, muscle Se content, breast drip loss, and GSH-Px activities in the serum and liver compared with the T-1 group. However, no significant differences were observed in final BW, DWG, and GSH-Px activities in the serum and liver between the T-2 and T-3 groups. It could be concluded from this study that supplementing diets with 0.30 mg/kg of Nano-Se for was effective in increasing the growth performance and feed conversion ratios of chickens, the Se content of tissues, and the quality of the meat.
authors.affiliation: College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, China.
authors.forename: X
authors.initials: X
authors.lastname: Zhou
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002645:Chickens / Q000235:genetics / Q000254:growth & development*; D004032:Diet / Q000662:veterinary; D005979:Glutathione Peroxidase / Q000378:metabolism*; D008099:Liver / Q000737:chemistry; D008460:Meat / Q000592:standards; D018482:Muscle, Skeletal / Q000737:chemistry; D053758:Nanoparticles; D012643:Selenium / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D005979:Glutathione Peroxidase; D012643:Selenium