Multiple pregnancies are an increasing problem in breeding management. They are usually multizygotic (originating from several ova, i.e., the result of multiple
Infertility is a major problem in some broodmares. A large incidence of infertility is seen in valuable, intensively bred mares such as racehorses and performance mares, and significant amounts of money and time are devoted to dealing with the
Breeding without boundaries; it sounds like science fiction. Yet today we can breed two animals from different time zones, even different continents, through advances in artificial insemination. In this article, we will delv
Cryptorchid, ridgling, and even rig are terms used to describe a stallion with at least one undescended testis. The condition is not unique to equids, but the horse is of specific importance as the retained testis fails to produce viable sperm, so fertility rates are affected. However, the testis is still capable of producing testosterone, so the animal will show stallion-like behavior. The
AI is a relatively easy, safe, and convenient method of covering mares with stallions from all over the world. As with all techniques, it takes skill to make sure all the proper steps are taken to provide the best chance for pregnancy.
The fertilization of an egg and subsequent growth of one tiny cell into the perfect foal is a very complex process. Understanding the various stages of development can help you understand how pregnancies can be challenged and what’s going on in the event of a problem.
Pregnancy in the mare can be divided into four main events–fertilization, early embryo development, placentation
Owners of mares should know correct anatomical terminology, have a working knowledge of the normal reproductive cycle, and be acquainted with common problems that could occur. The following article is designed to help mare owners understand the normal reproductive tract of the mare, and the words that veterinarians use to describe normal and abnormal aspects of that anatomy.
See diagrams
Ultrasound is regularly used to monitor ovarian activity and to diagnose and monitor pregnancy and reproductive abnormalities.
Many think that lactation in the mare is not that important, especially compared to the dairy cow, from which milk is taken directly for human consumption. However, the importance of lactation in the mare must not be underestimated. Indeed, some
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