Since ovulation occurs a couple days after a cow or heifer has gone into heat or estrus, it occurs once every 17 to 24 days, which is the same time span a female would go into heat.
Hens ovulate daily: their eggs. If their eggs are fertile there is a chance of them hatching into chicks, if incubated correctly.
As often as possible and as often as there are cows that are needing his services. That said, a bull can breed as many as 2 to 10 cows (or more) per day, depending on how many cows are in heat on that day.
Once every 6 MBY.
Farmers and ranchers often feed the cows. However cows are able to feed themselves when they're out grazing on pasture.
Breasts do not HAVE to hurt to ovulate. However, it is often the case that they do. It depends on the person. Some times a womans breasts hurt, while another womans dont.
A false heat is when a cow goes in heat or estrus but doesn't ovulate. False heats may occur when a female is pregnant, and are not common either.
They come in heat every days, Pregnancy lasts 16 days.
Every 13 - 20 days 16 being usual
No. However, they often have spots
Female bison, female buffalo, and female bovines are often called cows and are found in ranching areas.
When healthy and with proper nutrition, every 24 hours for heavy layers.
They can, as they are herbivores, but they often prefer grass.