Mare Seasonality

Horses, Reproduction and Breeding

The mare is a seasonal breeder with a series of estrous cycle normally occurring the breeding season which coincides with long day lengths. The longest day of the year is June 22 and the shortest is December 22. Therefore mares should reach a peak in their...
Pasture Breeding Horses

Pasture Breeding Horses

Horses, Reproduction and Breeding

While total conception rates are no less with pasture breeding, most mare owners require specific breeding dates so that expected foaling dates can be accurately calculated. Some breed registries, most notably The Jockey Club, require natural cover. In addition to...
Evaluation of Stallion Semen

Evaluation of Stallion Semen

Horses, Reproduction and Breeding

Evaluating Semen Quality  Keep all equipment used in semen evaluation at 37°C and free of any spermicidal agents. Evaluate each ejaculate to assure the maximum number of normal, progressively motile spermatozoa. The following criteria are used to determine semen...

Processed Stallion Semen

Horses, Reproduction and Breeding

As reproductive technologies increase, the use of cooled or processed stallion semen is becoming more prominent. However use of processed semen requires certain management procedures. This article discusses the process of using cooled stallion semen, the potential...