Effects of dietary curcuma extract on Growth Performance,immune indexes and Intestinal Morphology of piglets
The experiment aims to explore the effects of adding Turmeric extract(TE)to feed on the growth performance,immune indicators,and intestinal morphology of piglets.640 healthy Duroc pigs with an average weight of 7.47±0.58 kg at 28 days old were randomly divided into 4 groups,with 8 replicates in each group and 20 pigs per replicate.Add 0,120,240,and 480 mg/kg of curcumin to the basic feed as experimental feed for each treatment group.The experimental period is 6 weeks.The results showed that the average daily weight gain of piglets in the group with 240 and 480 mg/kg TE was significantly increased by 5.20%and 4.86%compared to the control group(P＜0.05);The average daily weight gain of piglets in the group treated with 240 and 480 mg/kg TE was significantly reduced by 4.75%and 5.41%,respectively,compared to the control group(P＜0.05);In addition,turmeric extract had no significant effects on final weight,feed intake and diarrhea rate of piglets(P＜0.05).The serum Alb content in piglets treated with 240 and 480 mg/kg TE was significantly higher than that in the control group(P＜0.05);The serum Glb content of piglets in the group treated with 240 mg/kg TE was significantly higher than that in the control group(P＜0.05);Serum IL-2 and IFN of piglets with 240 and 480 mg/kg TE groups added-γ The content significantly increased(P＜0.05);In addition,TE had no significant effect on serum IgA,IgM,and IgG levels in piglets(P＞0.05).The height and V/C value of duodenal villi in piglets treated with 240 and 480 mg/kg TE were significantly higher than those in the control group(P＜0.05);The jejunal villus height and V/C value of piglets in the group treated with 240 and 480 mg/kg TE were significantly higher than those in the control group(P＜0.05);In addition,TE had no significant effect on the depth of crypts in various intestinal segments,the length of ileal villi,and the V/C value of piglets(P＞0.05).In summary,TE ultimately enhances the growth performance of piglets by improving their intestinal morphology and immunity.The optimal amount of TE added to piglet feed is believed to be 200 mg/kg.
万方数据
维普
