The purpose of this study was to investigate the effects of complex microecological preparations on performance,milk composition,blood biochemical,immune and antioxidant indexes of Saneng dairy goats.Twenty-six Sarone dairy goats with 1～2 parity and average daily milk yield(1.01±0.3 8)kg were randomly divided into 2 groups with 13 goats in each group.Goots in the control group were fed a basal diet,and those in the experimental group were fed the basal diet supplemented with 10 g/d microecological preparation per sheep.The results showed that dry matter intake,milk yield and feed to milk ratio of experimental group had no significant differents compared with control group(P＞0.05);There were no significant differences in somatic cells,milk fat percentage,urea nitrogen and total solids(P＞0.05).However,milk protein had a significant increase trend at the 21st(P=0.094)and 43rd days(P=0.069),and non-fat solid had a significant increase trend at the 21st(P=0.082)and 43rd days(P=0.070);There were no significant differences in total protein,albumin and globulin in blood biochemistry(P＞0.05),glucose content was significantly increased by 66.20％(P＜0.05),and urea nitrogen content had a tendency to decrease(P=0.082).Immunoglobulin G and immunoglobulin M had no significant differents(P＞0.05),the content of IgA was significantly increased by 25.06％(P＜0.01),and the contents of interleukin-1 and interleukin-6 were significantly decreased by 33.23％and 15.80％(P＜0.01).Serum propylene glycol content was significantly decreased by 16.16％(P＜0.05),superoxide dismutase was significantly increased by 35.01％(P＜0.01),glutathione peroxidase was significantly increased by 15.08％(P＜0.05),and total antioxidant capacity was not significantly different between the two groups(P＞0.05).In conclusion,the composite microecological preparation had no adverse effect on the production performance,could improve the immune and antioxidant properties of dairy goats,and could promote the health of ruminants.
维普
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