Effects of Cottonseed Meal Fermented by Lactobacillus acidophilus on Immune Function and Oxidation Resistance of Yellow-feathered Broilers |
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| Authors: | ZHANG Xiao-yang ZHANG Wen-ju WANG Yong-qiang LIU Jian-cheng NIE Cun-xi YANG Liang |
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| Institution: | College of Animal Science and Technology, Shihezi University, Shihezi 832003, China |
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| Abstract: | This study was conducted to examine the effects of cottonseed meal fermented by Lactobacillus acidophilus on antioxidant function and oxidation resistance of Yellow-feathered broilers. One hundred and eighty 21-day-old healthy male Yellow-feathered broilers were randomly divided into 3 groups with 6 replicates per group and 10 broilers per replicate.The broilers in the control group were fed the basal diet with 6% cottonseed meal supplementation,and those in groupⅠ were fed the experimental diet with 6% fermented cottonseed meal supplementation,and the others in group Ⅱ were fed the basal diet included 6% cottonseed meal and 7×104 CFU/g Lactobacillus acidophilus.The results showed as follows:①At 42 days of age,the immune organ index of three groups were no significant difference (P>0.05).At 64 days of age,compared with control group, the spleen index, bursa of Fabricius index,serum IL-2 content and the expression of IL-10 mRNA in spleen of groupⅠwere increased by 47.69% (P<0.05), 20.59% (P<0.05), 5.77%(P<0.05) and 449.37%(P<0.01),respectively,and the expression of IFN-γ and IL-10 mRNA in spleen of groupⅡwere increased by 153.45% and 255.70% (P<0.05),respectively. The expression of IL-10 mRNA in spleen of group Ⅰ was increased by 54.45% compared with group Ⅱ (P>0.05).②At 42 days of age,the serum T-SOD,serum T-AOC and liver T-AOC of group Ⅰ were significantly increased by 8.26%,22.13% and 22.34% compared with control group (P<0.05),and the serum T-AOC of groupⅠwas significantly increased by 27.25% compared with groupⅡ (P<0.05).At 64 days of age,compared with control group,the serum T-SOD,serum GSH-Px and liver T-SOD of groupⅠincreased by 10.17%(P<0.01),20.45% (P<0.05) and 26.17% (P<0.01),respectively,and compared with group Ⅱ,the serum GSH-Px,liver T-SOD and liver GSH-Px of groupⅠincreased by 19.45% (P<0.05),18.41% (P<0.01) and 21.23% (P<0.05),respectively. In conclusion,dietary fermented cottonseed meal could enhance immune function and oxidation resistance of Yellow-feathered broilers, and Lactobacillus acidophilus had no significant influence on immune function and oxidation resistance of Yellow-feathered broilers. |
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| Keywords: | fermented cottonseed meal Yellow-feathered broilers immune function oxidation resistance |
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