They farm dairy cattle.

他们饲养奶牛。

Dairy cattle similarly produce vast quantities of GHG emissions.

奶牛也同样产生大量的温室气体。

The state's refineries already churn out more than five times as much of the stuff as its small stock of dairy cattle can eat.

该州的精炼厂已经生产出的饲料数量是其小型奶牛可食用量的五倍以上。

Its use is primarily in dairy cattle and peri-urban areas where complementary services including milk marketing are available.

它主要用于奶牛和城市周边地区，这些地区提供包括牛奶营销在内的配套服务。

They learn first hand about the health and nutrition of dairy cattle, as well as the science of making butter, cheese, and other dairy products.

他们亲自了解有关奶牛的健康和营养知识，以及制作黄油，奶酪和其他乳制品的技术。