Effects of plant extracts on growth performance,serum biochemical indexes,and immune function of Xuhuai white goat
The aim of this experiment was to investigate the effects of different levels of plant extracts on the growth performance,serum biochemical indexes,and immune function of Xuhuai white goat,and to determine the suitable supplemental level of plant extracts in Xuhuai white goat breeding.A total of 48 healthy Xuhuai white goats were selected and divided into four treatment groups with three replicates per group and four Xuhuai white goats per replicate according to the single-factor experimental design.The control group was fed a basic diet,while the experimental groups were fed diets containing 0.1％,0.2％,and 0.4％plant extracts.The preliminary trial lasted for one week,and the formal experiment was conducted for eight weeks.After the experiment,the growth performance,biochemical indexes,and immune indexes of the Xuhuai white goats in each group were measured.The results showed that compared with the control group,the final weight and average daily gain of 0.2％and 0.4％plant extract groups were significantly increased(P＜0.05),the ratio of feed to gain was significantly decreased(P＜0.05).The diarrhea rate was significantly decreased by 33.88％and 41.82％(P＜0.05).Compared with control group,the contentrations of serum urea nitrogen and cholesterol of Xuhuai white goats in 0.2％and 0.4％plant extract groups were significantly decreased(P＜0.05),while the contentrations of albumin,total protein,high density lipoprotein and growth hormone were significantly increased(P＜0.05).The glutamic oxalacetic transaminase activity of Xuhuai white goats in all experimental groups was significantly decreased(P＜0.05).Compared with the control group,the serum interleukin-4 concentrations of Xuhuai white goats in 0.2％plant extract group were significantly increased(P＜0.05),and the serum interleukin-22 concentrations were significantly decreased(P＜0.05),serum interleukin-6 and tumor necrosis factor-α concentrations of Xuhuai white goats in all experimental groups were significantly decreased(P＜0.05).The contentrations of serum interleukin-10 and transforming growth factor-β of Xuhuai white goats in 0.2％and 0.4％plant extract groups were significantly increased(P＜0.05).The results indicate that feeding an appropriate amount of plant extracts can improve the growth performance,immune function,and health status of Xuhuai white goats,with the better effect at the 0.2％addition level.
plant extractsgrowth performanceserum biochemical indexesimmune functionXuhuai white goat
万方数据
维普
