Well, just to clear things up - this would NOT be for "convenience." It would be because the mare is miserable for half the month, every single month. She's in pain. She kicks, paws, ears pinned, and will stand there for hours and not eat a bite of hay because she's squatting and peeing. Her hind end gets chronically wet and nasty, tail turns into a mess. In October she colicked in conjunction with the heat cycle. I can't just give her bute for pain because she's had ulcers in the past and that's too risky. I can give Equioxx or Previcoxx but that is very expensive, and still doesn't fix her extreme distraction. She walks from horse to horse in the field backing her butt up to them and peeing and squealing. She jostles for dominance in the herd, she's a real ladder climber. She's just miserable half the month. It's not just for "me" but for HER! If a stallion were acting so miserable, distracted, and hormonal to the point it affects his riding and day to day activities everyone would say geld him but when it's a mare people say - then you shouldn't own a mare. What's up with that? One vet mentioned that the ulcers may actually have been caused by her constant worry over needing to be bred. :-( This mare has been cycling strong since 1 year old and she'll be 7 in a couple months. This has been going on for a long time and it's not getting any better.
I was told that breeding the horse often fixes these problems, but I don't want to breed. I suppose that's a last resort but I'd rather spay. Breeding and foaling is very risk also. I've known a lot of mares that had complications from that, including one of our own that had a vaginal tear and infection.
The vet I talked to said he's been doing this surgery for 20 years and he's done all kinds of backyard horses to high end performance horses of just about every breed, shape, and size, and he's only see a couple of minor complications, usually infection, in all these years. He's never encountered anything catastrophic at all. He said 99% of mare owners are extremely pleased and the surgery fixes all these issues. There is the ocassional mare who still shows heat because other tissues in the body can still produce estrogen, but those mares are rare.
I've read really mixed stories on the marbles. It appears that the chance of severe infection is very high and I'm not sure if I want to take that chance. Not to mention the marble falling out and you don't know it, then the mare's back in heat again a month or two later and you start all over.
She's young, she's a performance horse, and I would never sell her. She's here for life. If something happens to me and my family has to sell her, then I'm sure people wouldn't mind buying a spayed mare - I can't imagine it being any different than a gelding.
The problem I have with Regumate is the danger of it to humans. You can't get a drop on your skin. You have to wear latex gloves. You can't keep it out in the cold or it will freeze. We live in the artic north where it's frozen half the year. I did chores last night in -3 degrees, and it's not even winter yet. So that means transporting it from house to barn every day and not getting any on my skin. When I'm gone, I have people watch my farm and I can't be troubling them with Regumate.
We did Regumate with a mare once and it was a major pain. It was not a fun drug to deal with.
I may try Regumate for 30 days but I can't see myself keeping on with that forever.
Does anybody know anything about Depo shots?