The offspring of a bull and a cow is called a calf. When a cow gives birth, it is called calving. Cows usually give birth to just one calf at a time, but twins are not uncommon. Meat from cattle is called beef. Sheep Female sheep are called ewes, referred to as ewe lambs before giving birth and ewes after having given birth.
Male sheep are either rams or wethers.
Ram lambs that are mature and capable of producing offspring are called rams. Male sheep that have been neutered and are unable to reproduce are called wethers. The offspring of a ram and a ewe is a lamb. When a ewe gives birth, it is called lambing. A ewe often gives birth to twin lambs, sometimes even triplets or quadruplets.