Effects of Adding Polygonum hydropiper L.to High-Concentrate Diet on Growth Performance,Serum Biochemical,Immune,Inflammation and Antioxidant Indexes of Sheep
The purpose of the experiment was to study the effects of high-concentrate diet supplemented with Polygonum hydropiper L.on growth performance,serum biochemical,immune,inflammation and antioxidant indexes of sheep.Forty 3-month-old Duhan crossbred male lambs weighing(23.26±0.33)kg were randomly divided into 4 groups with 10 lambs in each group.The ratio of concentrate to roughage in the basal diet was 75:25,and the addition levels of Polygonum hydropiper L.were 0(control group),5(L1 group),10(L2 group)and 15 g/d(L3 group).The experimental period was 75 days of which the pre-test period was 15 days and the formal period was 60 days.Results showed as follows:the average daily gain and weight gain in late stage of the L3 group were significantly higher than those of the other three groups(P＜0.05);compared with the control group,the addition of Polygonum hydropiper L.significantly reduced the contents of urea nitrogen and triglyceride in serum(P＜0.05),significantly increased serum low density lipoprotein cholesterin content(P＜0.05),the serum total cholesterol content in the L3 group was significantly higher than that in the other three groups(P＜0.05),the high density lipoprotein cholesterol content in the L3 group was significantly higher than that in the control group and L1 group(P＜0.05);compared with the control group,the addition of Po-lygonum hydropiper L.could significantly increase the activities of total antioxidant capacity,glutathione perox-idase,and total superoxide dismutase in serum(P＜0.05),significantly reduce serum malonaldehyde content(P＜0.05),the catalase activity in L2 and L3 groups was significantly higher than that in the control group(P＜0.05);compared with the control group,adding Polygonum hydropiper L.could significantly increase acid phosphatase activity and immunoglobulin,interferon-γ contents in serum(P＜0.05),significantly reduce nitric oxide and lipopolysaccharide contents in serum(P＜0.05),serum interleukin-1 β,interleukin-6,and tumor necrosis factor-a contents in the L2 and L3 groups were significantly lower than those in the control group(P＜0.05).It is found that the addition of Polygonum.hydropiper L.to high-concentrate diet can im-prove the antioxidant capacity and immune function of sheep,reduce the contents of serum pro-inflammatory factors,alleviate the inflammation caused by eating high concentrate diets,increase the average daily gain and total weight gain of sheep,and have a positive effect on maintaining the health of sheep.Under the conditions of this experiment,Polygonum.hydropiper L.will not have a bad effect on the body,and the addition amount of 15 g/d is the best.[Chinese Journal of Animal Nutrition,2024,36(4):2551-2560]
万方数据
维普
