Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Tochigi 329-2793, Japan.
J Reprod Dev. 2022 Apr 1;68(2):90-95. doi: 10.1262/jrd.2021-149. Epub 2022 Jan 30.
The livestock industry produces a large amount of greenhouse gases (GHG) that cause global warming. A high percentage of GHG emissions are derived from cattle and has been suggested to be a factor in global warming. With the global increase in the consumption of livestock products, the number of farm animals has increased. In addition, the reduction in productivity and reproductive capacity of cattle has resulted in accelerated GHG emissions. In a high-temperature environment, the pregnancy rate decreases, leading to an increase in animals that do not contribute to production. Consequently, GHG emission per unit product increases, thereby accelerating global warming. To reduce this environmental impact, it is important to improve the breeding efficiency of cattle by the use of reproductive technology and, thus, reduce the number of non-productive animals. Thus, reproductive biology plays a major role in mitigating global warming related to the livestock industry.
畜牧业产生大量温室气体（GHG），导致全球变暖。很大一部分温室气体排放来自牛，有人认为这是导致全球变暖的一个因素。随着全球对畜产品消费的增加，农场动物的数量也在增加。此外，牛的生产力和繁殖能力下降导致温室气体排放加速。在高温环境下，怀孕率下降，导致不产仔的动物数量增加。因此，单位产品的温室气体排放量增加，从而加速了全球变暖。为了减少这种环境影响，重要的是通过使用繁殖技术来提高牛的繁殖效率，从而减少非生产性动物的数量。因此，生殖生物学在缓解与畜牧业相关的全球变暖方面发挥着重要作用。
