Corn is a prime source of feed for dairy cattle and the rising costs could force farmers to reduce their herds, leading in turn to reduced supplies.

玉米是乳用牛饲料的主要来源，价格上涨将迫使农民减少饲养牲口数，进而导致供给减少。

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We have lots of dairy herds, dairy cows. But managing dairy and beef cows is a totally different thing.

我们有许多的奶牛种群和奶牛，但管理奶牛和菜牛是完全不同的事情。

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Corn is a prime source of feed for dairy cattle and the rising costs could force farmers to reduce their herds, leading in turn to reduced supplies and modest price increases.

玉米是乳品牲口饲料的主要来源。价格上涨将迫使酪农减少饲养牲口数，导致供给减少，价格略增。

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The road rises, dips, twists, and turns along the eastern shore as it passes the occasional house, amid small herds of dairy and beef cattle behind barbed wire fences.

NPR: Environmentalist John Francis, Walking the Walk

Up to 18% of US cattle are thought to have the disease which mainly affects dairy herds.

BBC: Crohn's Disease

The state has 55 dairy herds in its control programme, but that leaves another 2, 070 to go and that does not include beef farms.

ECONOMIST: Another cow disease with a possible link to humans