hello,
My wife got a new horse a month ago. How long does it take her other two horses to get a long with him? Her mare and pony want nothing to do with the gelding. The mare has always been a bit of a bitch. Good with the kids and me but not the gelding.
Thanks
John

Maybe never. Mature Studs can be a real problem, even after they are gelded. Best practice is to keep them in adjoining pens for a week or so and then introduce the new horse to the less dominant individuals first.
Grizz

Its doubtful if your gelding was cut as a mature stallion - as somebody says, they never forget. If that were the case, I expect he'd be kicking the mare's ass. PUtting them in adjoining pens for a while might help, but better yet, ride them out together and put them to work. The bossiness might get a little easier. But this mare is a boss mare, has gotten used to it, and will continue to do same. Forever. She will just let up a bit when the gelding accepts her dominance and she has proved her point.

The boss will always be the boss, but she won't kill him or really hurt him. As a side note, the boss horse is usually a good one to sell, they are dominant and don't tend to take training as well, as they are somewhat immune to the punishment. A lot of trainers will turn young studs out together, one will always be dominant. The dominant one will almost always wash out of the training, just too tough to get the upper hand on him.

Anytime you have 2 or more horses together, one of them will be dominate to one degree or another, most of the time but not written in stone.

Mares are a pain in the butt IMO, but thats not to say they are not good animals, some of the best horses I have seen were mares, also some of the toughest..I will disagree however that a mare or agressive horse won't injure another horse, they will from time to time chew them up or even break something or run a horse through a fence or over a steel post, whatever.

My take?, I own nothing but guildings, it keeps me sane, at least to a degree. I don't raise horses anymore btw.

Most stud horses when cut will conform and loose all memory of breeding, however if you proud cut them they will not. There are a few exceptions but they are very rare.