1) Relative clutch mass
相对窝仔重
2) Litter weight on 1 and 21 day
仔猪三周窝增重
3) litter size
窝产仔数
1.
This paper discussed the physiology mechanism of prolificacy and reviewed the reasons and effectiveness of using placental efficiency as a selection tool for litter size and the relationship between placental efficiency and growth traits in pigs.
本文综述了猪高繁殖力的生理机制研究进展 ,对近年来关于猪胎盘效率与产仔数关系以及胎盘效率与生产性状间的关系研究进行了详细描述 ,从胎盘效率这一综合指标探讨猪高繁殖力的生理基础 ,目前的研究结果表明 ,基于胎盘效率的选择是提高猪的窝产仔数行之有效的方
2.
The results of variance analysis indicated that litter size had extremely significant difference between populations,which showed that various populations had different genetic structure.
对二花脸猪、大白猪及其杂交一代和回交一代 4个群体共计 2 0 10窝产仔数的资料进行了加性—显性遗传模型以及基因效应的研究。
3.
The relationship between placental efficiency and litter size, the number of live births, the number of stillborn , the mummified fetuses, litter weight at birth were compared.
研究结果表明: 1、在窝产仔数和产活仔数方面,低胎盘效率组(H_3)长大二元杂母猪的窝总产仔数极显著地低于中等胎盘效率组(H_2)和高胎盘效率组(H_1)(P<0。
5) number born per litter
窝均产仔数
1.
The results indicated that the farrowing rate and number born per litter were not significantly different among AI, AI plus natural service (NS) and natural service.
结果表明 :全人工授精、人工授精同自然交配结合等配种方式与自然交配对照组相比 ,分娩率和窝均产仔数差异不显著 ;3至6胎母猪的分娩率高于其它胎次 ,而窝产活仔数 3至 5胎高于其它胎次 ,不同配种方式对各胎次母猪的分娩率和窝均产活仔数无显著影响 ;常温 (17℃ )保存 1d的精液输精后 ,与鲜精相比 ,母猪的分娩率和窝均产活仔数无显著差异 ;人工授精技术的应用使每头母猪每年多提供 3。
6) litter size
一窝产仔数
