长白公猪不同代数及血缘对产活仔数和初生重的影响

Effects of landrace boar about the different generation and blood relationship on the number of live births and birth weight

本文通过收集福建某猪场2015-2018年长白猪的生产数据,研究公猪代数、血缘对母猪产活仔数、仔猪初生重的影响。结果表明:长白猪不同代数对产活仔数与初生重有显著差异,产活仔数第3代最多,为12.34头。初生重第2、第3代最高,代数1至代数2的初生重呈上升趋势,代数3、代数4呈下降趋势,表明选择第3代最好;血缘关系对产活仔数呈现差异性,其中血缘2最多(12.24头),相比其他血缘有很高的优越性。血缘对于初生重也有很大差异影响,血缘23与血缘2、15、17有显著差异性。

In this paper,the production data of a pig farm in fujian province from 2015 to 2018 were collected,and the effects of Danish Landrace boar about the different generation and blood relationship on the number of live births and birth weight of sows were studied.The results showed that there were significant differences between the birth number and the birth weight in different generation,and the third generation of the birth number was up to 12.34.The second and third generations of birth weight are the highest.The birth weight was on the rise from the first generation to the second.And on the downward trend from the third generation to the fourth.,this indicated that the third generation is the best choice.The blood relationship shows differences in the number of live births,of which blood 2(12.24 heads)is the most,which is superior to the others.Blood relationship is also very different from birth weight,and the blood 23 was significantly different from blood 2,15,and 17.