Maternal dietary supplementation with two sources of selenium affects the mortality and the antioxidative status of chick embryo at different developmental periods
2016
Yuan, D. (Zhejiang Univ., Hangzhou (China). Feed Science Inst., Coll. of Animal Sciences) | Guo, X. (Zhejiang Univ., Hangzhou (China). Feed Science Inst., Coll. of Animal Sciences) | Shi, M. (Zhejiang Univ., Hangzhou (China). Feed Science Inst., Coll. of Animal Sciences) | Zheng, L. (Zhejiang Univ., Hangzhou (China). Feed Science Inst., Coll. of Animal Sciences) | Wang, Y. (Zhejiang A and F Univ., Lin'an (China). Coll. of Animal Science and Technology) | Zhan, X.
A total of 270 Lingnanhuang broiler breeders (40-weeks-old) were allocated into three treatments with five replicates each. Breeders were fed with basal diets (Control) or diets prepared from basal diets supplemented SS or SM at a level of 0.15 mg Se/kg diet. This study showed that feeding diet supplemented with Se to the broiler breeder significantly (P less than 0.05) decreased the mortality of chick embryo. During the late period of incubation (17 - 21 day), the mortality of the chick embryo in SM treatment was remarkably lower (P less than 0.05) than that in SS treatment. Increased glutathione peroxidase activities in the embryonic liver were observed in SS and SM treatments between days 9 and 21 of development (P less than 0.05), while no differences were noted between SS and SM treatments. Also, feeding broiler breeder with Se led to a decrease (P less than 0.05) in the contents of hydrogen peroxide (H2O2) and malondialdehyde (MDA) in the embryonic liver. Moreover, SM is more effective than SS in decreasing the content of H2O2 and MDA during the late period of incubation (P less than 0.05). It was concluded that supplemented with both forms of Se in the maternal diet can improve the mortality of the embryo and its antioxidative status and organic SM shows a higher value than inorganic SS during the late period of incubation.
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