摘要
本课题研究的目的就是找出内蒙古地区仔猪早期断奶的适宜断奶日龄，为养猪生产提供科学的依据。为此，我们做了内蒙黑猪哺乳仔猪生后２１、３５、４５不同日龄断奶试验，从中寻找规律，确定适合内蒙古地区的仔猪早期断奶日龄。经６０ｄ试验，我们测定了一系列数据。通过对试验结果分析看出：３５日龄断奶组的仔猪增重快，生长发育迅速，到６０日龄时的体重显著地高于２１日龄组和４５日龄组的体重，经方差分析差异显著（０．０１＜ｐ＜０．０５）；３５日龄断奶组仔猪成活率最高为９０．２４％，３５日龄断奶组母猪年产胎数也较多，从而增加了母猪年产活仔数；３５日龄断奶组还明显地降低了饲养成本，经济效益高。通过试验，作者认为：在内蒙古地区一般饲养管理条件下，仔猪３５日龄早期断奶最适宜，并可在生产中推广应用。
An experiment with early weaning of sucking pig was studied in order to determinesucking pig's proper day-age of early weaning in Inner Mongolia. Sucking pigs were diyided intothree groups:21 days of age,35 days of age and 45 days of age. After weaning,the growth of thesucking pigs were observed.The research was carried out for 60 days. The results were as follow:In 60 days age,the weightand growth in 35 days of age group were higher than those in the other two groups. 35days of age.group showed the highest Survival rate of sucking pig. On the other hand,the production rate of themale pig was risen and the cost of feeds was significantly lowered. Early weaning,feed utilization,survival rate of sucking pig and the production rate of the malepig were increased,at the same time,the growth of sucking pig was very well.This conclusion hadbeen eastablished after 60 days research.Accorrding to our conclusion,early weaning,cost of feedingpig is decreased and econmic benefit is increased.On the basis of our research,early weaning of sucking pig at 35 days of age. is most suitable inInner Mongolia region.
基金
内蒙古教育厅基金
