Hello, I am trying to breed an 8 year old QH/TB mare who has had her first foal and only foal in 1999. In trying to get her in foal in 1999 an ovarian tumor was discovered and removed in August 99 (it was the size of a volley ball). In Spring 2000 the mare did not cycle normally, her remaining ovary was "tiny" and inactive. Finally in July, she started to cycle, but her follicles were never bigger than 20. Despite that she was bred AI 2 times because these small follicles did appear to ovulate, no foal. A biopsy done in 2000 showed 2B, culture was clean and she was treated with antibiotic and DMSO for a uterine infectin. I did not breed her after this treatment as it was already September. At the start of 2001 I decided to have her biopsied again before I decided whether to try her this year. Again her culture was clean but her biopsy remained 2B with "some" scar tissue. She did show good signs of estrus when teased and had a "humongous" 40 follicle. Since it looks like she is cycling normally, and has excellent tone according to my vet, I decided to try her one more time. She is due to come into season this week. The plan is to flush her with saline, as my vet is reluctant to use irritating substances on a uterus that is already chronically irritated. Then she will be AI'd (hopefully one time--stallion is incredibly fertile) then Oxytocin administered 4 hours post insemination then she will be re-flushed 12 hours later and then given Oxytocin 2 times a day for 3 - 4 days then Regumate will start on the 5 day after insemination. What do you think of my chances of getting a foal out of this mare? Should the Oxytocin be given more often? This mare is a cribber (miracle collar is effective except at meal time), should I have her sewn up in case she is pulling in environmental irritants? Thank you.
Posted on Tuesday, May 15, 2001 - 10:41 pm:
Oxytocin use could be increased to every 6 hours post-breeding starting at 4 hours PB, and pausing only for one treatment at the point where you might want to give a low-volume broad spectrum antibiotic infusion.
A Caslick's procedure will often work wonders in this type of mare too.
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