摘要
为了研究经产二元杂母猪体尺性状与产仔性能之间的相关性,试验选择2～6胎的经产美系二元杂母猪351头,对其预产期前3天的胸宽、臀宽、胸围、腹围4个体尺性状和总产仔数、产活仔数、活仔窝重3个产仔性状进行测定和分析。结果表明:母猪体尺性状与总产仔数、产活仔数、活仔窝重等产仔性能具有一定的相关性,其中臀宽和腹围对产仔性能的影响最大;胸宽、臀宽与产仔性能呈负相关,胸宽≥35. 5～<41. 0 cm时母猪产仔性能最佳;臀宽≥34. 3～<39. 0 cm时母猪总产仔数、产活仔数最高;胸围过大或过小不利于母猪产仔性能的发挥,胸围>151. 0 cm时总产仔数、产活仔数和活仔窝重均最低;腹围与母猪产仔性能呈极显著正相关(P<0. 01),腹围越大母猪产仔性能越佳。生产中应注重对母猪体尺性状的选择和监测,可以在一定程度上提高母猪的产仔性能,提高经济效益。
In order to investigate the correlation between body size traits and litter performance in multiparous hybrid sows,351 dual hybrid sows with 2 to 6 births were selected in this test. They were measured and analyzed on 4 body size traits and total number born,number born alive and live litter weight. The results show that sow body size traits have a certain correlation with total number born,number born alive and live litter weight,among which hip width and abdominal circumference have the greatest effect on litter performance. The chest width of 35. 5-41. 0 cm is most beneficial to sow litter performance. The hip width of 34. 3-39. 0 cm have the highest total number born and number born alive. Too large or small chest circumference is not conducive to the reproduction performance of sows. As chest circumference > 151. 0 cm,the total number born,number born alive and live litter weight were all the lowest. There was a significant positive correlation between abdominal circumference and sow litter performance( P<0. 01),and the greater the abdominal circumference,the better the litter performance of sow is.Pig breeders should pay attention to the selection and monitoring of sows’ body size traits,which can improve the reporoduction performance of sows and improve economic benefits.
作者
王梦芬
金亚辉
马官军
赵志超
韦仁美
江科
刘向东
WANG Mengfen;JIN Yahui;MA Guanjun;ZHAO Zhichao;WEI Renmei;JIANG Ke;LIU Xiangdong(College of Animal Sciences & Technology,Huazhong Agricultural University /Key Lab of Swine Genetics and Breeding of Ministry of Agriculture and Rural Affairs,Wuhan 430070,China;Guangxi Yangxiang Co.,Ltd.,Guigang 537100,China)
出处
《黑龙江畜牧兽医》
CAS
北大核心
2019年第6期32-35,40,共5页
Heilongjiang Animal Science And veterinary Medicine
基金
国家自然科学基金项目(31572375)
中央高校基本科研业务费专项资金资助项目(2662016PY006)
关键词
经产二元杂母猪
体尺性状
产仔性能
相关性分析
预产期
multiparous hybrid sows
body size traits
litter performance
correlation analysis
expected date of childbirth
