摘要
文章旨在探讨长大二元杂交母猪繁殖性能与不同胎次之间的关系。试验对象为2021年12月~2022年9月四川某猪场能繁母猪中1109头长大二元杂交母猪,母猪按1~9胎次分为9个组别,并统计繁殖性状数据共1219窝,数据包括母猪胎次、窝产活仔数、窝产健仔数等。结果显示,第5胎次母猪窝产活仔数、窝产健仔数显著高于其他胎次,而母猪窝产死胎数、窝产畸形数、窝产木乃伊与各胎次之间关系不显著。母猪繁殖性能趋势表现为随胎次增加后,逐渐下降,在第3~5胎比较理想的状态,6胎以后开始下降,到第8胎和第9胎次母猪的窝产活仔数和窝产健仔数生产数据比较差。建议猪场提高3~5胎次母猪占比,考虑淘汰第6胎次以后繁殖性能差的母猪。
This experiment was conducted to investigate the relationship between reproductive performance and different parities of full-grown binary cross sows.The experimental subjects were 1109 full-grown binary hybrid sows in a Sichuan pig farm from December 2021 to September 2022.Sows were divided into 9 groups according to the parity of 1 to 9,and a total of 1219 litters of sows were calculated.The data included sow parity,litter number of live piglets and litter number of healthy piglets.The data were analyzed using SPSS 22.0 data analysis software.The results showed that the number of litters born alive and healthy was significantly higher than that of other litters,but there was no significant relationship between the number of stillbirths,the number of litters malformed and the number of litters mummified.The reproductive performance of sows showed a trend of decreasing gradually with the increase of parities,which was ideal at the 3rd to 5th parities,and began to decrease after the 6th parities.The production data of litters born alive and healthy were poor at the 8th and 9th parities.It is suggested to increase the proportion of sows in 3 to 5 parities,and consider weeding out sows with poor reproductive performance after the 6th parities.
作者
易宗容
冯堂超
袁世林
李雪梅
阳刚
YI Zongrong;FENG Tangchao;YUAN Shilin;LI Xuemei;YANG Gang(Yibin Vocational and Technical College,Yibin,Sichuan province 644000,China;Yibin Bureau of Agriculture and Rural Affairs,Yibin,Sichuan province 644000,China;Sichuan Agricultural University,Wenjiang,Sichuan province 611100,China)
出处
《中国饲料》
北大核心
2023年第2期37-40,共4页
China Feed
基金
宜宾生猪产业高效养殖科技创新团队(ybzy21cxtd-07)。
关键词
胎次
长大二元杂交母猪
繁殖性能
parity
Full-grown binary cross sow
performance of reproduction
