Stallion Collection Schedules Affect Mare Pregnancy Rates
Lisa Metcalf, MS, DVM, Dipl. ACT, owner of Honahlee PC, a breeding facility in Sherwood, Oregon, recently looked at how collection and insemination schedules affect pregnancy rates in mares bred using fresh or cooled semen. She shared her findings at the 2017 American Association of Equine Practitioners convention, held Nov. 17-21, in San Antonio, Texas.
Breeding stallion collection schedules can vary widely, said Metcalf. Many are collected every other day, while others are collected daily, weekly, Monday-Wednesday-Friday, or between horse shows. The reason for this variation, she said, can be stallion- or staff-dependent.
This poses a problem for mare owners working with a limited breeding window due to the short lifespan of the mare’s oocyte and the stallion’s
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