Effects of complex plant essential oil on growth performance,immunity,and digestive enzyme activities of Wujin pigs
This experiment was conducted to investigate the effects of dietary complex plant essential oil supplementation on the growth performance,immune function,and intestinal digestive enzyme activity of Wujin pigs.A total of 120 Wujin pigs with similar body weight were divided into four groups with three replicates per group and 10 Wujin pigs per replicate.The control group was fed a basic diet of corn-soybean meal,while the experimental groups were fed diets supplemented with 250,500,and 1 000 mg/kg of a complex plant essential oil.The preliminary period lasted for one week,and the formal experimental period lasted for 30 days.The results showed that compared with the control group,feeding 500 mg/kg and 1,000 mg/kg of the complex plant essential oil could increase the final body weight and average daily weight gain,and reduce the feed-to-weight ratio and diarrhea rate(P＜0.05).Feeding 500 mg/kg and 1 000 mg/kg of the complex plant essential oil could increase the levels of interleukin-4 and interleukin-1β(P＜0.05),and decrease the levels of tumor necrosis factor-α and interleukin-6(P＜0.05),and increase the level of serum immunoglobulin A(P＜0.05),feeding 250,500,and 1 000 mg/kg of the complex plant essential oil could increase the levels of serum interleukin-10 and immunoglobulin G(P＜0.05).Feeding 500 mg/kg of the complex plant essential oil could enhance the activity of intestinal trypsin,ileal trypsin,and lipase,and duodenal trypsin(P＜0.05),and feeding 250,500,and 1 000 mg/kg of the complex plant essential oil could enhance the activity of duodenal amylase and lipase(P＜0.05).The study suggests that the complex plant essential oil can improve the growth performance,reduce the diarrhea rate,enhance immune function,and intestinal digestive enzyme activity of Wujin pigs,and a comprehensive analysis indicates that the addition of 500 mg/kg of the complex plant essential oil is more appropriate.
万方数据
维普
