What is referred to by 'bovine'?

Based on the clue 'bovine somatotropin is one of these given to cows ...', what is the answer? Based on the clue 'bovine somatotropin or bst is a hormone used to in...', what is the answer? Based on the clue 'bovine term for a crescent shaped lake formed in a...', what is the answer? Based on the clue 'bovine term for an audition open to a large number...', what is the answer? Based on the clue 'bovines in washingtons emerald city', what is the answer? What is referred to by 'bovines'? Based on the clue 'bow legs are often the result of this childhood di...', what is the answer? What is referred to by 'bow or bolo 3'?