摘要
为研究母猪怀孕后期背膘变化与繁殖性能的相关性,将659头长大二元杂母猪和509头温系纯种大白母猪于怀孕85 d和怀孕112 d进行背膘测定。结果显示,长大二元杂母猪怀孕85～112 d的背膘差与仔猪初生重具有强相关性,相关系数为0.68;温系纯种母猪怀孕85～112 d的背膘差与仔猪初生重为中等相关性,相关系数为0.55。表明怀孕后期背膘增加越大,仔猪初生重亦会随之增加,怀孕后期母猪的膘情变化需重点监控。
The total number of 659 Landrace-Yorkshire hybrid sows and 509 Wens Yorkshire sows were measured backfat thickness on the 85 and 112 day of pregnancy tor studying the correlation of backtht changes and reproductive performance. This study results had the tollowing： first of all, the correlation coefficient was 0.68 between the backtht ditterence in pregnant 85-112 d and the birth weight of piglets tor hybrid sows. Secondly, the correlation coefficient was 0.55 for Wens Yorkshire sows. Comprehensive above, the greater the backfat in late pregnancy, the heavier the birth weight of piglets. Theretore, the change of backtht at late pregnancy needs to be monitored.
作者
师晓杰
陈志林
张凯
吴德铭
梁振华
张守全
SHI Xiaojie;CHEN Zhilin;ZHANG Kai;WU Deming;LIANG Zhenhua;ZHANG Shouquan(WENS Food Group Limited Company,National Engineering Research Center tor Breeding Swine Industry,Yunth 527400,China;College of Animal Science,South China Agricultural University,Guangdong Provincial Key Lab of Argoanimal Genomics and Molecular Breeding,Guangzhou 510642,China)
出处
《养猪》
2018年第6期41-43,共3页
Swine Production
基金
国家自然科学基金(31572397)
国家重点研发计划(2017YF0501902)
广东省现代农业产业体系生猪创新团队育种与繁殖岗位专家(粤农2016LM1102)资助
关键词
母猪
背膘
繁殖性能
sow
backtat
reproductive performnance
