表皮生长因子和蒙脱石对断奶仔猪生长性能和腹泻的影响

Effects of Epidermal Growth Factor and Montmorillonite on Growth Performance and Diarrhea of Weaned Piglets

试验旨在研究饲粮中添加表皮生长因子和蒙脱石对仔猪生长性能和腹泻的影响,选取(6.30±0.92)kg左右的断奶仔猪90头,按照体重一致、公母各半的原则随机分为3个处理,每个处理6个重复,每个重复5头仔猪。试验期21 d。对照组饲喂基础饲粮,EGF(表皮生长因子)组饲喂在基础饲粮中添加1 mg/kg表皮生长因子的饲粮,蒙脱石组饲喂在基础饲粮中添加1000 mg/kg蒙脱石散和1 mg/kg表皮生长因子的饲粮。结果表明:1)与对照组相比,蒙脱石组的日增重显著提高(P<0.05),料重比也显著降低(P<0.05);2)蒙脱石组和EGF组的腹泻率和腹泻指数显著低于对照组(P<0.05);3)与EGF组相比,蒙脱石组的腹泻率和腹泻指数显著降低(P<0.05)。试验结果表明在该试验条件下,饲粮中添加1 mg/kg的表皮生长因子或1 mg/kg表皮生长因子和1000 mg/kg蒙脱石可显著提高仔猪的生长性能,降低腹泻。

This study was designed to investigate the growth performance and diarrhea effects of epidermal growth factor and montmorillonite on piglets.A total of 90 piglets,45 males and 45 females with an average initial BW of(6.30±0.92)kg was randomly grouped to 3 treatments with 6 replicates per treatment and 5 piglets per pen.A completely randomized design(CRD)with control group,EGF group(1 mg/kg epidermal growth factor),montmorillonite group(1000 mg/kg montmorillonite and 1 mg/kg epidermal growth factor).The results showed that:1)Compared with the control group,EGF group and montmorillonite group average daily feed intake and feed conversion ratio increased significantly(P<0.05).2)The diarrhea rate and diarrhea index of the EGF group and montmorillonite group were significantly lower than control group(P<0.05).3)The diarrhea rate and diarrhea index of the montmorillonite group were significantly lower than EGF group(P<0.05).These results suggested that dietary 1000 mg/kg montmorillonite and 1 mg/kg epidermal growth factor supplementation or dietary 1 mg/kg epidermal growth factor supplementation increased growth performance and reduced diarrhea.