cattle后面用is还是are

后面用are，例如：

1. These cattle are one of the purest breeds in Britain.这些牛是英国最纯的品种之一。

2.The cattle are fed barley.这些牛要喂大麦。3.The cattle are being fattened for slaughter.喂肥牛群以宰杀。4.On big farms cattle are usually stamped with brands.在大农场，牲畜通常是打烙印的。