For the insulin resistant horse, winter laminitis can strike seemingly out of nowhere, with no change in diet or management and some puzzling inconsistencies. The horse may not necessarily have a prior history of laminitis. The pain is often severe, but the feet aren’t hot as they are in classical acute laminitis cases.

The experts at Texas A&M then shipped the embryos to Weatherford Equine Medical Center in Weatherford, TX, for transfer into surrogate mares. Remarkably, three of the four embryos resulted in pregnancies.

This has been blamed for prolonged gestation and low milk production in late term pregnant mares.