补充产后康对奶牛产后酮病预防效果的研究OA

In order to study the effect of postpartum supplementation of Chanhoukang on the prevention of ketosis in dairy cows,12 healthy perinatal Holstein cows with similar age,parity and body condition were selected and randomly divided into experimental group and control group,all of which were fed with standard perinatal mixed feed.The experimental group was given 1 kg/head·d of Chanhoukang(mainly composed of propylene glycol and calcium propionate)developed by the research group for 2 consecutive days after delivery.The tail root venous blood was collected on an empty stomach in the morning on the 6 th and 9 th day after delivery,and the blood biochemical indexes,antioxidant indexes,trace elements and vitamin contents were detected.The results showed that the concentration of glucose(Glu)in the blood of the experimental group was significantly higher than that of the control group(P<0.05),and the concentration of non-esterified fatty acid(NEFA)and β-hydroxybutyric acid at 9 days postpartum was significantly lower than that of the control group(P<0.05).Superoxide dismutase(SOD),glutathione peroxidase(GSH-Px)and total antioxidant capacity(T-AOC)were significantly higher than those in the control group at 6 days postpartum(P<0.05).The contents of copper(Cu),manganese(Mn)and zinc(Zn)were significantly higher than those in the control group(P<0.05).The contents of vitamin A,vitamin C and vitamin E were significantly higher than those in the control group(P<0.05).Postpartum supplementation of Chanhoukang can effectively prevent ketosis in dairy cows.