摘要
以长大二元杂种母猪为研究对象,应用卡方检验及SPSS 19.0软件的单因素方差分析对63 109头的配种数据进行分析,以探讨初配月龄对第1胎繁殖性能的影响。结果显示,初配月龄为8~8.5月龄母猪的繁殖性能最为优秀,其中分娩率达93.17%,为各组中的最高;胎均健仔为10.33头,也高于其他各组,胎均无效仔为1.81头,极显著低于其他4组(P<0.01)。结果表明,长大二元杂种后备母猪的初配适宜月龄为8~8.5月龄。
The Chi-square test and One-Way ANOVA of SPSS 19.0 software were used to analyze 63 109 mating data in order to study the effect of first-mating age on the reproductive performance of Landrace-Yorkshire sows in first parity. The results showed that the farrowing rate of sows at the age of 8-8.5 months was 93.17%, which was the highest in all groups. In addition, the qualified piglet in this group was 10.33, which was higher than that in other groups;and the unqualified piglet was 1.81, which was significantly lower than that in the other four groups (P<0.01). Comprehensive above, the optimum first-mating age for Landrace-Yorkshire sows is 8-8.5 months.
作者
陈志林
叶超
吴德铭
师晓杰
卫恒习
张守全
CHEN Zhilin;YE Chao;WU Deming;SHI Xiaojie;WEI Hengxi;ZHANG Shouquan(WENS Food Group Limited Company,National Engineering Research Center for Breeding Swine Industry,Yunfu 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》
2019年第5期28-30,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)
关键词
母猪
初配月龄
第1胎
繁殖性能
sows
first-mating age
first parity
reproductive performance
