It's as simple as this: Put grass in front of cow, put bull behind cow. In other words, natural breeding is simply putting a herd bull out with a herd of cows or heifers and letting him do his job for a few weeks or couple months, then pulling him out again.

Do cows mate naturally?

A cow usually comes into heat every 21 days. Of that 21 days, she's got a 24 hour window of opportunity to be successfully bred – after her egg has dropped. Because a bull's sperm, much like a human's, can live for days inside the cow it's impossible to perfectly time breeding.

Are cows forced to mate?

COWS ARE FORCIBLY IMPREGNATED: Just like humans, cows only produce milk once they've given birth. So to keep the milk flowing, farmers artificially inseminate female cows about once a year.