终测背膘厚与母猪繁殖性能的关系

The relationship between final backfat thickness and reproductive performance of sows

为探究终测背膘厚与母猪繁殖性能之间的关系,指导猪场选育和提高猪场母猪繁殖性能,试验以新法系大白母猪为研究对象,收集母猪终测背膘厚和繁殖性状的相关数据,分析终测背膘厚与母猪繁殖性能之间的相关性,并研究终测背膘厚对母猪繁殖性能的影响。结果表明:终测背膘厚与初产母猪各繁殖性能之间不存在显著相关(P>0.05),与经产母猪的总产仔数、产活仔数、产健仔数、窝重存在显著相关(P<0.05),随着背膘厚的增加,产活仔数、产健仔数、窝重呈增加的趋势。说明终测背膘厚与经产母猪的繁殖性能存在显著相关,终测背膘厚为10.5~15.1 mm时可以最大程度地发挥母猪的优秀繁殖性能。

In order to explore the relationship between the final backfat thickness and the reproductive performance of sows,and to guide the breeding of pig farms and improve the reproductive performance of pigs in the pig farms,the research object was Large White sows of new French line in this experiment.Relevant data of final backfat thickness and reproductive characteristics of sows were collected to analyze the correlation between final backfat thickness and reproductive performance of sows,and to study the effect of final backfat thickness on reproductive performance of sows.The results showed that there was no significant correlation between the final backfat thickness and the reproductive performance of the primiparous sows(P>0.05),but there was a significant correlation between final backfat thickness and total litter number,live litter number,healthy litter number and litter weight of postnatal sows(P<0.05).As the thickness of the backfat increased,live litter number,healthy litter number,and litter weight increased.The results indicated that the final backfat thickness was significantly correlated with the reproductive performance of the sows.When the final back thickness is 10.5-15.1 mm,the excellent reproductive potential of the sows can be maximized.