中文摘要：

本试验旨在研究重组猪表皮生长因子（ porcine epidermal growth factor,pEGF）对早期断奶仔猪生长性能的影响。选用21日龄断奶三元杂交（杜×长×大）健康仔猪160头,按体重相近、性别比例相同原则随机分成4组,即高档教槽料＋500μg/kg pEGF组（ GE组）、高档教槽料对照组（ GD组）、中档教槽料＋500μg/kg pEGF组（ ZE组）、中档教槽料对照组（ ZD组）,每组4个重复,每个重复10头仔猪。试验期为10 d。结果表明：1） GE组平均日增重显著高于GD组（ P〈0.05）,比GD组提高了6.29%；ZE组平均日增重极显著高于ZD组（P〈0.01）,比ZD组提高了17.08%；2）GE组平均日采食量与GD组无显著差异（P〉0.05）,ZE 组平均日采食量显著高于ZD组（P〈0.05）,比ZD组提高了4.91%；3）GE组料重比显著低于GD组（P〈0.05）,比GD组降低了4.31%；ZE组料重比显著低于ZD组（P〈0.05）,比ZD组降低了10.37%；4）GE组腹泻率比GD组降低了57.14%；ZE组腹泻率比ZD组降低了38.46%。由此可见,饲粮添加pEGF提高了饲料转化率,降低了料重比和腹泻率,从而显著改善断奶仔猪生长性能,降低增重成本。

英文摘要：

This experiment was conducted to investigate the effects of recombinant porcine epidermal growth factor （ pEGF） on growth performance of early-weaner piglets. One hundred and sixty healthy weaner piglets （ Large×White×Landrace） at 21 days of age were randomly allocated to 4 groups （ 4 replicates per group and 10 piglets per replicate）：high grade creep feed＋500μg/kg pEGF （ GE） group, high grade creep feed control （ GD） group, median grade creep feed＋500 μg/kg pEGF （ ZE ） group, median grade creep feed control （ ZD） group. The trial lasted for 10 days. The results showed as follows：1） compared with GD group, aver-age daily gain （ ADG） in GE group was significantly increased by 6. 29% （ P〈0. 05）; compared with ZD group, ADG in ZE group was significantly increased by 17.08% （P〈0.01）. 2） Average daily feed intake （ ADFI） was no significant difference between groups GE and GD （ P〉0.05）;compared with ZD group, AD-FI in ZE group was significantly increased by 4.91% （ P〈0.05） . 3） Compared with GD group, feed/gain （ F/G） in GE group was significantly reduced by 4.31% （ P〈0.05）;compared with ZD group, F/G in ZE group was significantly reduced by 10.37% （ P〈0.05） . 4） Compared with GD group, diarrhea rate in GE group was reduced by 57.14%; compared with ZD group, diarrhea rate in ZE group was reduced by 38.46%. It is con-cluded that adding pEGF in the diets can improve feed conversion ratio, and reduce F/G and diarrhea rate, which improving growth performance and reducing weight gain cost.