Are cows and horses ever kept in the same pasture together? If not , why not?

Yes they do, and often they do not.

Some cattle raisers do not like to run their horses with the cows because the horses will make sport of the cows sometimes.

Some equestrians, that also run a market heard, know that there is an increased potential parasite load with cattle and horses on the same land. In particular brown lung worms that are seldom seen in horses that are not pastured with cows but can invade a horse. Not much of a risk if you are running a good parasite regimen with your cattle, but not everyone does.

Usually if there is two or more horses in the pasture they tend to stay to themselves.

Yes, a farm I used to work for kept a few geldings and an older stallions with a herd of Angus cattle that included a bull. Never had an issue. The horses mostly kept to know side of the pasture and the cows the other. 3 horses, 1 donkey, and approx 40 head of Angus on approx 15-20 acres,

Around here its common to see horses & cows pastures together. The qh breeder in my area turns his stud out with them so he's not alone and he already had a double fence to keep the cows from jumping it so it saved him from having to make another pasture for the stud.

Up until we built a new pasture off the back of the cow field last spring my horses were turned out into the cow pasture during the warmer months most days of the week.

Yes. My neighbor has a huge plot of land with cattle and horses on it. The place I board has a longhorn that's out on the same pasture as the horses. As long as the land is big enough, I'm sure it wouldn't be a problem. I could see a problem arising on smaller land though, especially with bulls. One might get aggressive to the other since they're forced to be close together. A bull's horns or a horse's kick could get either one in trouble.

Where I live it is odd to keep them separate..

BUT:

- people commonly keep their main work horse(s) in a pasture smaller and closer to their house so they have easy access

- horses and cows can be kept together and will intermingle, but that doesn't mean that they keep together in the pasture. (also, cows will eat many more plants that horses do not, so there is a chance that they were eating where the horses don't)

Good luck!

I see it sometimes, even on my own road. I know someone that kept about 15 head of angus and several horses in the same large pasture. The bull turned up missing and after a search, they found him lying down in some bushes. Upon butchering him, they discovered the meat in the abdomen was purple with blood. They deduced that the large gelding had kicked him in the abdomen. That would be one reason not to keep them together, but again, I do see it sometimes.

I was raised in the Midwest, and this is a common sight, and an even more common practice in most areas there. Farmers pasture horses and cattle together all the time.

Most of the time if there is a large number of cows or they are raising beef cattle they keep horses separate for sanitation and easier access to the horses. Beef cattle are more skittish than dairy cows and they can turn on the horses and hurt them accidentally with their horns.

Other than that and maybe special feeding requirements for the horses most people around here keep their horses in with their dairy cows, or in a small paddock by the house.

Yes. Where I live, you see horses kept with cattle quite often.

Have they ever had sex should be your question?