Banos G, Sigurdsson A
INTERBULL Centre, Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden.
J Dairy Sci. 1996 Jun;79(6):1117-25. doi: 10.3168/jds.S0022-0302(96)76465-2.
Increased international trade of genetic material from dairy cattle requires genetic evaluations across countries. Methods are discussed for comparing genetic evaluations of bulls computed in different countries. A system that combines information from several countries and produces routine international evaluations of dairy bulls is described, and possible ways of utilizing such international information in national breeding programs are presented. Important issues for international genetic evaluations are the estimation of genetic parameters within and across countries and the impact of imported bull evaluations on international rankings. Both issues are discussed in this article in view of recent research findings and potential future applications. Optimally, routine systems for international evaluation of the future will consider all economically important traits and serve different and well-defined breeding goals.
奶牛遗传物质国际贸易的增加需要进行跨国遗传评估。本文讨论了比较不同国家计算得出的公牛遗传评估的方法。描述了一个整合多个国家信息并生成奶牛公牛常规国际评估的系统，并介绍了在国家育种计划中利用此类国际信息的可能方式。国际遗传评估的重要问题包括国家内部和国家之间遗传参数的估计以及进口公牛评估对国际排名的影响。鉴于最近的研究结果和潜在的未来应用，本文对这两个问题都进行了讨论。理想情况下，未来的国际评估常规系统将考虑所有经济上重要的性状，并服务于不同且明确的育种目标。
