当前位置: X-MOL 学术Russ. Agricult. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Selection Indices Used in Different Breeding Systems with Pigs of Maternal Breeds
Russian Agricultural Sciences Pub Date : 2020-11-04 , DOI: 10.3103/s1068367420050134
E. E. Melnikova , S. A. Nikitin , A. V. Kabanov , A. A. Sermyagin , S. N. Kharitonov , N. A. Zinovieva

Abstract

The objective of the study was to analyze the efficiency of selection of the maternal breed pigs based on their scores for the indices of complex traits. Databases of phenotypes in the Large White pigs (n = 23 753) for reproductive performance (farrowing performance) and meat and fattening productivity in progeny (n = 34 866) produced from the livestock population at OOO Selection and Hybrid Center (Verkhnyaya Khava, Voronezh oblast) were used. During the study, the economic values for reproductive traits, meat quality, and fattening performance were determined; their trait heritability coefficients were calculated. As a result, the selection index equations for estimating the animal breeding values have been derived to calculate the selection index based on productivity (SI1) and the overall selection index (SI2) for comprehensive evaluation of livestock population and subsequent selection of specimens in order to produce purebred or crossbred progeny. It is recommended to use the SI1 scores in selecting sows and boars for purebred breeding and the SI2 scores in crossbreeding to produce the replacement F1 gilts.



中文翻译:

不同母猪品种育种系统中的选择指数

摘要

这项研究的目的是根据母猪的复杂性状指标得分来分析其选择效率。大型白猪的表型数据库(n  = 23 753),来自于OOO选择和杂交中心(Verkhnyaya Khava,沃罗涅日)的牲畜种群生产的繁殖性能(分娩性能),子代的肉和育肥生产力(n = 34 866)使用)。在研究过程中,确定了生殖性状,肉质和育肥性能的经济价值。计算了它们的性状遗传力系数。结果,推导了用于估计动物育种值的选择指数方程式,以基于生产力(SI1)和总体选择指数(SI 2),以便对牲畜种群进行综合评估,并随后选择标本以生产纯种或杂种后代。建议在选择母猪和公猪进行纯种育种时使用SI 1评分,在杂交育种中使用SI 2评分以产生替代F1母猪。

更新日期:2020-11-06
down
wechat
bug