抗菌肽制剂替代血浆蛋白粉对断奶仔猪生长性能及健康状况的影响

The effects of antimicrobial peptide replaced with spray dried porcine protein on growth performance and healthy of weaned piglets

本试验选用体重相近(约6.5 kg)断奶前5 d的哺乳仔猪(杜×长×大三元杂)60头,随机分为对照组和试验组,每组3个重复,研究应用抗菌肽制剂替代教槽料中血浆蛋白粉对仔猪生长性能以及健康程度的影响。结果表明:与添加血浆蛋白粉的教槽料相比,添加2%抗菌肽制剂组断奶仔猪日增重提高8.06%(P>0.05),饲料转化率改善4.38%,同时腹泻减少47.78%,眼角分泌物减少15.18%。这说明抗菌肽制剂能有效缓解断奶仔猪的早期应激综合症问题,是血浆蛋白粉良好的替代品。

Sixty crossbred pre-weaned piglets（Duroc×Landrace×Yorkshire） about 6.5 kg body weight（BW） were randomly divided into the control and treatment groups with 3 replicates for 10 piglets each,to investigate the effects of dietary substitution of antimicrobial peptides（AMPs） for spray dried porcine protein（SDPP） on the growth performance.Piglets in the control group were fed the creep feed contained SDPP,whereas the piglets were fed the diet with supplementation of AMPs at a 2 % level in substitution for SDPP in the treatment group.The results showed that average daily gain of piglets,feed conversion rate were higher（P0.05） than that of control group,increased 8.06 % and 4.38 % respectively,the diarrhea rate and eye discharge decreased by 47.78 % and 15.18 %（P0.05） respectively.In a conclusion,dietary supplementation of AMPs could effectively relieve the early weaning stress（EWS） in weanling piglets,and was one of the alternative substitution for the SDPP in creep feed.