Effects of complex microecological preparations on performance,milk composition,blood biochemical,immune and antioxidant indexes of dairy goats
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.
万方数据
维普
