Effects of Clostridium butyricum on the growth performance,serum biochemical parameters and rumen environment of mutton sheep
This experiment was conducted to study the effects of Clostridium butyricum on growth performance,serum biochemical parameters and rumen environment of mutton sheep.30 Duhu crossbred sheep were randomly divided into 2 groups with 3 replicates in each group and 5 sheep in each replicate.The control group was fed with basal diet,and the experimental group was fed with basal diet supplemented with 200 mg/kg Clostridium butyricum.The experiment was 60 days.The results showed that the average daily gain(ADG)of the experimental group was significantly higher than that of the control group(P<0.05),and the feed conversion ratio was significantly lower than that of the control group(P<0.05).The ratio of serum albumin to globulin(ALB/GLB)in the experimental group was significantly higher than that in the control group(P<0.05).There was no significant difference in the content of volatile fatty acids between the two groups(P>0.05),but the activity of amylase in the rumen fluid of the experimental group was significantly lower than that of the control group(P<0.05).In conclusion,dietary supplementation of Clostridium butyricum improved the performance of mutton sheep,but had no significant effect on rumen environment.