There are a few standardbred studs who are crypt. Chocolatier is a good example - although before he entered the breeding shed he had accupuncture to drop the testicle. It worked and he now has full books every year. Accupuncture is a good method to get the testicle to descend - I've seen it work 3 or four times. Yes, it's hereditary but I guess some folks don't care!
When the BO talked to the vet today, the vet wasn't very concerned that he actually bred either mare. So she doesn't have to give either mare an exam, she is going to draw blood on Nico to check his testosterone level to see if it is even high enough to be producing sperm. She said she will give Dani a once over to see what she thinks (she knows the mare very well as Danis nickname is 'boo-boo-dani') and we will go from there. I have an email in to his breeder, who is now out of the business, to see if Nico was ever bred...accidentally or on purpose. I also asked him if the vet had anything significant to say about his gelding. The last time I emailed him to find out some info on my boy, it took him 6 weeks to get back to me and he replied with 'he was the second best horse I've ever owned' what a big help eh?!?
So now, more questions. If he is infact a cryto...whats next? Surgery? If he is proudcut...is there anything they can do? I've read somewhere about regumate being used on studdish geldings...anyone have any experience with that? How about managing his field tendancies. Should he be cleared, can he be in with the mares? My-oh-my...why can't I go back to having a simple horse!
If he's a cryptorchid he'll need surgery, they have to go in through the flank and it's fairly involved surgery, unfortunately with a much bigger price tag.
As far as if he's just proud cut. Using regumate with geldings, I've never heard of that. I am sure there are some hormonal treatments you can use - but I've not heard of regumate being used. Regumate is kind of fiddly stuff to work with - I probably wouldn't choose that option.
Ideally you'd just keep him pastured with geldings, since in the pasture is the only time he acts this way, or keep him only pastured with one or two mares you know to be "safe". (Assuming the mare owners don't have hang ups.)
Sometimes the term cryptorchid is used for one OR 2 testicles "up"-- the horse is either a bilateral crypt (one up) or a unilateral crypt (2 up). However it is more immediately descriptive to call a horse with only one "up" a monorchid.
It SHOULD be impossbile for a unilateral crypt, or a horse who was a monorchid who has had the dropped testicle removed, to impregnate a mare. However that would depend on whether the remaining testicle is dropped enough to produce viable sperm.
I think you have the terminology backwards. Bilateral would be both up (bi means two) and unilateral would be one up (uni means one).
If indeed he does have a retained testicle, he needs to have the surgery because he will always act like a stud and the problems that creates with everyday living.
We bought a beautiful 6 yr old Morgan gelding years ago, gelding being the key point. Because of his studdy behavior, we had a blood test done and he indeed had one testicle , he was gelded as a yearling but nobody said anything about only taking one testicle. After the blood test, we had the vet do the surgery, it was not particularly dangerous, he was done while in the stocks, standing and the incision was a small one in the flank. Testicle out, no more stud.... He did try to breed the mares, but never succeeded, his testicle was a "high flanker" and the sperm were not viable.
Get the blood test, if he does have a testicle, have it taken out for your safety and enjoyment of your horse and for him also.
A horse or dog that has an undecended testicle in the belly or abdomen can't produce viable sperm , they will not survive in the testicle, and the testicle is usually very very small and not normal.
If the horse or dog has one normal testicle, then he can produce sperm, but the testicle must be in the scrotum. Sure, he might be able to pull it up and bring it down especially when young because the inguinal ring might not have closed, but a horse with no testicles outside his body can't produce sperm, the testicle has to be outside the body to keep the sperm alive.
They can have an erection and breed, but the mare will not get pregnant.