Effects of enzyme-hydrolyzed proteins from different grain sources on growth performance,serum hormones,and immune indices of weaned piglets
The experiment aimed to investigate the effects of enzyme-hydrolyzed proteins from different grain sources on the growth performance,serum hormones,and immune indices of weaned piglets.One hundred and twenty 44-four-day-old weaned piglets with a body weight close to(13.08±0.14)kg were selected for the experiment,and they were randomly divided into four groups,with five replicates per group and six piglets per replicate.The control group was fed with a basic feed,and the experimental groups were fed with enzyme-hydrolyzed proteins from different grain sources(soybean hydrolyzed protein,rice hydrolyzed protein,and wheat hydrolyzed protein,with equivalent nitrogen supplementation)to replace fermented soybean meal and part of the soybean meal in the basic feed.The preliminary trial period lasted for five days,followed by a formal trial period of 20 days.The results showed that compared with the groups fed with rice hydrolyzed protein and wheat hydrolyzed protein,the ADFI of piglets in the soybean hydrolyzed protein group was significantly higher during the early stage(1～10 d)and the entire period(1～20 d)(P＜0.05).The ADG of the soybean hydrolyzed protein group during the entire period was significantly higher than that of the rice hydrolyzed protein group(P＜0.05).The serum tumor necrosis factor-α(TNF-α)level in the soybean hydrolyzed protein group was significantly lower than that in the control group and the rice hydrolyzed protein group(P＜0.05).The serum insulin,growth hormone,insulin-like growth factor 1,ghrelin,and gastrin levels in the rice hydrolyzed protein group were significantly higher than those in the soybean hydrolyzed protein group and the control group(P＜0.05).The study indicates that adding soybean hydrolyzed protein to the feed can improve the growth performance of weaned piglets,reduce inflammation factor levels,and its effect is superior to rice hydrolyzed protein and wheat hydrolyzed protein.
enzymatic hydrolyzed proteinweaned pigletsgrowth performanceserum hormonesimmune indices
国家科技期刊平台
NSTL
万方数据
