Improving female fertility and calf survival in the UK beef industry

能生育的乳肉牛和较低的犊牛死亡率对于盈利的牛肉生产系统至关重要。为了提高母牛的繁殖力和小牛的存活率，国家数据将被用于开发繁殖力和存活率的基因组育种值。基因组选择是一种新的育种工具，它提高了传统上难以改善的性状（如生育力和存活率）的遗传改良率。因此，英国牛肉行业的整体效率可以提高，因为奶牛将更加肥沃，在其一生中产生更多的小牛，更多的小牛将存活下来。这将增加产量，但更重要的是以可持续的方式进行，最终将减少每公斤牛肉的温室气体排放。这个项目是创新的，因为牛肉基因组学仍处于起步阶段，目前没有育种工具可用于遗传改善生存。

Fertile suckler beef cows and low calf mortality are essential for profitable beef production systems. Toimprove cow fertility and calf survival national data will be used to develop genomic breeding values forfertility and survival. Genomic selection is a novel breeding tool which increases the rate of geneticimprovement for traits that have traditionally been difficult to improve, like fertility and survival. As aresult the overall efficiency of the UK beef industry can be improved as cows will be more fertile andproduce more calves in their lifetime and more calves will survive. This will increase production, but justas important do it in a sustainable way that ultimately will reduce the greenhouse gas emissions per kgbeef produced. This project is innovative as beef genomics is still in its infancy and there are currently nobreeding tools available for the genetic improvement of survival.