Is there a chance that a mule may reproduce if bred?

It is not uncommon for female mules to come into estrus and for male mules to display signs of teasing other female equine when in estrus. Most mule owners will castrate male mules, and some will even spay female mules (remove the ovaries) in hopes of changing behavior associated with estrus or aggression. A mule is a cross between a male donkey (jack) and a female horse (mare). A hinny is the reciprocal cross, a female donkey (jenny/jennet) and a …

Is there a pill to stop a pregnancy in a horse? My stallion got out tonight, and he inseminated one of my mares. I would like to prevent her from getting pregnant.

Although your stallion got out and inseminated a mare, she must be cycling with a viable follicle in order to be pregnant. If you do think that she was cycling and had a viable follicle, you can ask your veterinarian to examine her. He will probably need to wait at least 14 days, then ultrasound her and perform an exam to be sure that she is pregnant. There are a number of methods that will terminate pregnancy. It is possible …

How do I tell when my mare is ready to breed?

A mare will show signs of heat (sexual acceptance of the stallion) about four to seven days of her approximately 21-day-long cycle. In between the heat periods, she is not receptive to a stallion. To check this, you need to tease her with a stallion, something that stallion owners will do as a daily or every-other-day routine to mares. A mare will urinate, swat, lift her tail, and show behavior consistent with receptivity to the stallion when she is in …