On the other hand, rainfall increased in the interior of western Africa, and the northern limit of the tsetse fly, an insect fatal to cattle, moved south.
另一方面，西非内陆的降雨量增加，采采蝇活动区域的北部边界向南移动——一种对牛致命的昆虫。
The leaves of certain trees are poisonous to cattle.
某些树的叶子会毒害牲畜。
Today, that biomass is fed to cattle, among other things.
今天，生物质原料同其他食物一起用来养牛。
Almost everyone, from generals to cattle herders has been learning the new national anthem.
从将军到牧民，几乎人人都在学唱新国歌。
我父亲照料牲口。
These are source materials referring to cattle breeding.
这些就是有关家畜饲养的资料。
Cow pats would litter pastures, making grass inedible to cattle and depriving the soil of sunlight.
牛粪在草场上随处可见，使得牛群吃不到草，也使土壤得不到阳光的照射。
Infectious bovine rhinotracheitis, which are caused by the bovine herpes virus type I, are extremely harmful to cattle industry.
牛传染性鼻气管炎是由牛传染性鼻气管炎病毒引起的传染性疾病，该病对养牛业危害极大。
It produces leaves that farmers can feed to cattle, and it has roots that enrich the soil with nitrogen. The trees protect crops from wind and prevent soil erosion.
它长出的叶子可以让农民用来喂牛，其树根中的氮可以增强土壤肥力。
He monitors the whereabouts of Wolf packs in relation to cattle and reports daily to ranchers so they can move herds to safer grazing spots or keep a closer eye on them.
他负责监视相关狼群的去向，并每天向牧场主报告。这样牧场主们就可以把畜群赶到比较安全的地方放牧，或者如果是比较危险的区域，则对畜群加倍密切照看。
Thanks to special bacteria in their stomachs, kangaroo flatulence contains no methane and scientists want to transfer that bacteria to cattle and sheep who emit large quantities of the harmful gas.
袋鼠胃中有一种特殊的细菌能使其放的屁中不含有甲烷。科学家想将这种细菌移至牛羊的胃中，以抑制它们所排放的大量有害气体。
Thanks to special bacteria in their stomachs, kangaroo flatulence contains no methane and scientists want to transfer that bacteria to cattle and sheep who emit large quantities of the harmful gas.
袋鼠胃中有一种特殊的细菌能使其放的屁中不含有甲烷。科学家想将这种细菌移至牛羊的胃中，以抑制它们所排放的大量有害气体。
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