约互仔猪不同断奶日龄的研究

在封闭式猪舍饲喂乳猪全价饲料的情况下 ,将 6窝 58头约互仔猪按每两窝一组 ,随机分成三组 ,分别在 2 5,30 ,35日龄断奶 ,观察不同断奶日龄对仔猪生长发育的影响。经 6 0天的试验 ,结果表明 :Ⅰ、Ⅱ、Ⅲ组平均日增重分别为 175g、179g、176g ,饲料利用率分别为 1.33、1.2 8和 1.2 3,各组间均差异不显著 (P >0 .0 5)。说明在我省现有设备、设施及饲养管理条件较好的规模养猪场 ,实行2 5日龄断奶是可行的。

Under the circumstances that the piglets were fed using complete feed in the closed pigsty,6 fossas(58 Yoekshire xhuzhu piglets)wer divided into three groups including two fossas in each group,They weaned in the 25,30,35 age in days resp.The effects of different weaning age in days on growth and development of the piglets was observed.In the exprement during 60 days,the results show:average daily gain were 175g,179g and 176g resp.And the efficiency of feed utilization were 1.33,1.28 and 1.23 resp.In the group Ⅰ Ⅱ Ⅲ There was not significant difference among those of group Ⅰ,ⅡandⅢ(P>0.05).These results indicated that it was feasible that piglets were weaned at 25 day after firth in the pig farm on a larger scale that there was a better conditions of feeding and management and current equipment in Qinghai province.