Theory of the maternal grandsire effect
For many years horse owners and breeders have witnessed a phenomenon known as the maternal grandsire effect.
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The overdue mare
Mare carried for 385 days – 45 more than average. The tiny foal eventually developed into a robust athletic reining horse.
A unicorn of a mare
Mares with uterus unicornis can successfully reproduce with the help of embryo collection and transfer procedures.
Vaccination schedule for pregnant mares
Equine reproduction experts recommend vaccination schedule and guidelines for pregnant mares.
Mare Breeding Management
Mares may be bred by natural cover or artificial insemination, depending on breed registry regulations, preference of the stallion owner and/or mare owner, location and availability of the stallion and mare, cost, safety concerns, experience of personnel, and other factors.
Putting a mare under lights
Housing mares under lights will stimulate the mare to develop follicles and ovulate earlier in the year than mares maintained under natural or light conditions.
Why are some pregnant mares administered progesterone?
Progesterone is the key hormone responsible for maintaining pregnancy in all mammals, including horses.
Starting a breeding program with your mare
An overview of the mare breeding process with fresh semen, cool-transported semen, and frozen semen.
When to bring your mare in for breeding work
The question of when to set up an initial appointment for a reproductive evaluation and subsequent monitoring of the estrous cycle of a mare depends on several factors.