This is an archived Horseadvice.com Discussion. The parent article and menus are available on the navigation menu below:
HorseAdvice.com » Equine Reproduction » Horse Breeding & Artificial Insemination » Preparing Your Mare for Breeding »
  Discussion on Check in and Questions on Breeding Bill
Author Message
Member:
Mcarna

Posted on Friday, Apr 4, 2003 - 12:25 pm:

Dr. O,
I posted last Novemeber re: the mare who lost her foal at 8 1/2 months; I am happy to report she is back in foal after only one attempt. Just wanted to give you an update...will keep you posted on her progress.

I sent another mare to a breeding farm in Texas and before she went, my vet palpated her, felt she was sound for breeding (she is a maiden mare - 10 yrs old) and gave her a hormone shot (P something) and said she would come back in heat in 5-7 days. She did, and was bred March 22nd at the farm and given a shot of HCG on the same date. She was also given a shot of Rompum on that same day and given another shot on March 24th of Rompum, on which day she ovulated. Here is my question: why all the shots? and what is Rompum? I understand HCG, which causes the mare to ovulate, but have not read anything about Rompum. It seems like a lot of shots to me...your thoughts?
Member:
Cassey

Posted on Friday, Apr 4, 2003 - 7:37 pm:

Wow! And to think my aged Percheron managed to get pregnant by a 28 yr old paint stud when they were thrown out in a field together, all by themselves! And he had arthritic hips!
Moderator:
DrO

Posted on Saturday, Apr 5, 2003 - 10:48 am:

Well Barry, when humans don't intefere that is exactly what happens: mares get pregnant and with greater efficiency than we feel the need to muddle around in it.

Rompun is a sedative, so they felt some need to sedate her? It is a poor choice for reproductive work however as it can cause reflexive kicking behind.

Not knowing what the first shot was (prostaglandin or progesterone?, I am unsure what its purpose was but both of these drugs and HCG are explained at, Equine Reproduction » Breeding and Foaling » Heat (Estrus) Detection, Ovulation Prediction, and Timing Insemination.
DrO
Member:
Bevpolo

Posted on Saturday, Apr 5, 2003 - 11:20 am:

Michelle,
it sounds like what they did was give a prostaglandin shot to short cycle your mare and bring her back in. Usually two ccs are given and then the next day, one cc is given. From that second shot, count about five days and the mare should start coming in with a breedable follicle. Then they must have palpated/ultrasounded the follicle, bred the mare, and gave HCG to encourage ovulation (usually around 24 hours if given IV).
I am a breeder in Texas and this is pretty standard procedure of the farms here. The rompun is not typical however. Hope she's in foal!! Bev
Member:
Mcarna

Posted on Saturday, Apr 5, 2003 - 3:34 pm:

Thanks Everyone. Dr O, I did check the medicines link above and read about Rompun, after I sent the post. Not sure why they felt the need to sedate her for an ultrasound, she is a very calm mare, but maybe that is standard routine. They will check her on the 9th via ultrasound for foal...will let you know.

I think they are using all the shots, etc., to cut down on the final bill. It costs $9 a day to keep her at the farm, and after she confirmed in foal, they keep her another 45 days. So you can see why people want to help the breeding process. Lose a month, and cost yourself about $400.

Will also keep you posted on the other mare; I am a little worried she may lose this second foal in the same way. Thanks...
Moderator:
DrO

Posted on Saturday, Apr 5, 2003 - 9:09 pm:

Hello Bev,
There is not an indication for the 1cc the second day. The shot is only effective in mares 2/3 rds of the time and the factors that explain this and its proper use are in the article on prostaglandins referenced above.
DrO
Home Page | Top of Page | Join Us!
Horseadvice.com is a BBB Accredited Business. Click for the BBB Business Review of this Horse Training in Stokesdale NC