What is a nursing cow?

A nursing cow is a cow that is producing milk to feed her calf. The term is usually used in the context of dairy farming, where cows are bred and raised specifically for their milk production. Nursing cows are typically kept in large herds and are milked several times a day to ensure a constant supply of milk. The milk produced by nursing cows is typically used for human consumption, and can be processed into a variety of dairy products such as cheese, butter, and yogurt.