益生菌发酵中草药制剂对肉羊生长性能、免疫力、抗氧化能力的影响OA

This study was conducted to investigate the effects of probiotic-fermented Chinese herbal medi-cine(CHM)preparation on growth performance,immune function,and antioxidant capacity in meat sheep.A total of 48 healthy male Hu lambs with an initial body weight of(20.17±2.00)kg were randomly allocated into four groups(n=12 per group):the control group(basal diet),the CHM group(basal diet supplemented with 1%CHM),the probiotic group(basal diet supplemented with 0.2%compound probiotic preparation),and the probiotic-fermented CHM group(basal diet supplemented with 0.2%probiotic-fermented CHM preparation).The results showed that,compared with the control group,the probiotic-fermented CHM group exhibited significantly higher average daily gain(P<0.05)and lower feed-to-gain ratio(F/G)(P<0.05),whereas no significant difference was observed in average daily feed intake(P>0.05).Additionally,the probiotic-fermented CHM group demonstrated significantly increased serum concentrations of total protein,albumin,and immunoglobulins G and immuno globulins M(P<0.05),as well as markedly enhanced total antioxidant capacity(T-AOC)and superoxide dismutase(SOD)activity compared with the control group(P<0.05).In conclusion,dietary supplementation with probiotic-fermented CHM preparation significantly improved growth performance,enhanced immune function,and elevated antioxidant capacity in meat sheep.