Planned mating can have a dramatic effect on the genetic progression of a dairy herd if the correct proven sires are selected .
如果正确的证明陛下被选择，计划了的交配能有在乳酪农场兽群的遗传基因的前进方面的戏剧性的效果。
These are just a few thought I will open to you as this sires continues , I look forward to the next article .
这些只是数不限你以为我会继续为这个夜晚,我期待下一文章.
Almost but not quite as amazing as their choice of patriotism for a theme was what came next : 24 aged sires ( as they were called ) led by patriarch isaac morley .
几乎和他们选择爱国为主题一样令人费解的是,接下来的节目是24位老人家,由教长以撒。
With the intense use of " popular sires " , especially in the rarer breeds with small populations , the animals within a breed become ever more closely related as the generations go by .
