The impact of composite probiotics on dairy cow serum biochemical indicators and gut microbiota
In order to study the effects of adding compound probiotics to the diet on milk production quality,serum biochemical indicators and damage of dairy cows,this experiment randomly divided 54 dairy cows into three groups,desert and experimental group Ⅰ(100mg/kg compound).Probiotic preparation)and test group Ⅱ(complex probiotic preparation at 400 mg/kg)were tested for 60 days.The results showed that adding compound probiotics(test group Ⅰ and test group Ⅱ)to the diet significantly increased the milk content in milk,reduced the number of somatic cells(P<0.05),improved milk quality,and the improvement effect was consistent with the added probiotics.There is a positive correlation with the amount;in terms of serum protein biochemical indicators,first of all,in the head,adding compound probiotics(test group Ⅰ and test group Ⅱ)to the feed can significantly reduce the blood sugar level in the plasma(P<0.05).In terms of damage composition,adding compound probiotics to the diet(test group Ⅰ and test group Ⅱ)can significantly reduce the number of lactic acid bacteria,the strongest bacteria in the matrix(P<0.05),while the number of lactic acid bacteria in test group Ⅱ increases.The results verified that adding compound probiotics to the diet significantly increased the total lactic acid level in the serum of dairy cows and maintained it at normal levels.Considering the production value,it is recommended to add 400 mg/kg of compound probiotics during the feeding of dairy cows.