This virus is a herpesvirus that affects cattle and rarely affects other species . 本病是一种牛疱疹病毒所引起，只感染牛而很少感染其它牲畜。
In the rude ages of society, cattle are said to have been the common instrument of commerce . 未开化社会，据说曾以牲畜作为商业上的通用媒介。
This is the result of an intensive vaccination program for pets, primarily dogs and cats . 这是加强对牲畜首先是犬和猫大规模的预防接种计划的结果。
Distribution of livestock can be shown better by symbols representing cattle, sheep, goats, poultry etc . 牲畜的分布，可采用牛、羊、山羊、家禽等图形表示。
He was never able to grow a cactus that could live in desert climates and provide food for animals . 他一直没有培育出能够在沙漠地带生长并能为牲畜食用的仙人掌。
There are two main components that contribute to livestock output per unit area under grazing conditions . 在放牧条件下，决定单位面积的牲畜产量，有两个主要因素。
If the environment is not totally within the "comfort zone" of the animal the adjustments are considerable . 如果环境不完全符合牲畜的"舒适范围"，就要做相当大的调节。
This was the period when, according to the bible, abraham and his family crossed the negev with their flocks . 根据《圣经》，这正是亚伯拉罕及其家族带着牲畜群穿越内格夫的时期。
English settlers in australia went in for large scale raising of cattle, which were not indigenous to australia . 澳大利亚的英国移民从事大规模牲畜饲养，而这不是澳大利亚的传统作法。
Control methods have had to be employed to protect cattle and other herbivorous animals from damage to bones and teeth . 必须采用一些控制方法，保护牲畜和其它吃草动物的骨骼和牙齿免受损害。
