The effects of L-arginine on growth performance,serum biochemical and immune indicators in weaned piglets
The aim of this experiment is to investigate the effects of L-arginine on the growth performance,serum biochemical and immune indicators of weaned piglets.200 healthy hybrid piglets with an initial weight of(8.14±0.07)kg and similar age were randomly divided into 4 groups,each with 5 replicates and 10 piglets per replicate.Add 0%,0.1%,0.2%,and 0.4%L-Arg to the basic feed as the experimental feed.The feeding experiment lasted for 70 days.The results showed that the final body weight of piglets added with 0.2%and 0.4%L-Arg significantly increased by 5.02%and 4.18%,respectively(P＜0.05);The average daily weight gain of piglets added with 0.2%and 0.4%L-Arg significantly increased by 5.28%and 4.42%,respectively(P＜0.05);The average daily weight gain of piglets in the 0.2%and 0.4%L-Arg addition groups was significantly reduced by 6.40%and 3.81%,respectively(P＜0.05);In addition,L-Arg had no significant effect on the feed intake of piglets(P＞0.05).Adding 0.2%and 0.4%L-Arg to the diet significantly increased the serum TP,GLB,and ALB content of piglets(P＜0.05),while adding L-Arg to the diet significantly reduced the serum BUN content of piglets(P＜0.05);In addition,the addition of L-Arg to the diet had no significant effect on the serum ALT and AST activities of piglets(P＞0.05).The addition of 0.2%and 0.4%L-Arg to the diet significantly increased the serum IgA content of piglets(P＜0.05);The addition of L-Arg significantly increased the serum IgM content in piglets(P＜0.05);The addition of 0.2%and 0.4%L-Arg significantly increased the serum complement C4 content in piglets(P＜0.05);In addition,adding L-Arg to the diet had no significant effect on serum IgG and complement C3 in piglets(P＞0.05).The addition of L-Arg to feed had no significant effect on the liver,kidney,spleen,and inguinal lymph nodes of piglets(P＞0.05).Under the conditions of this experiment,the optimal amount of L-Arg added is 0.3%.
L-argininepigletsgrowth performanceserum biochemical indicatorsimmunologic function
NETL
NSTL
万方数据
维普
