Expected birth date is an age-old question for horse breeders tending to four-legged mothers-to-be. Most mares are bred naturally in a scheduled breeding with the stallion or through artificial insemination. Dave Freeman, PhD, Oklahoma State
Since the first live foal produced by embryo transfer was born in 1974, the procedure has become one of the most popular assisted reproduction options for breeders with mares who are valuable or for mares that are to remain in competition. According
When it comes to a mare’s uterus, ultrasound examination and cytology (examination of cells under a microscope) can give a veterinarian a pretty good picture of what’s going on inside that could be confounding conception. However, comparing these
Transrectal ultrasounds can be up to 100% accurate in determining fetal sex at a determined gestational age.
The University of Kentucky Maxwell H. Gluck Equine Research Center and Veterinary Diagnostic Laboratory is reporting an increase in the number of cases of fetuses and placentas submitted to the laboratory and diagnosed with nocardioform placentitis.
Determining the cause of early fetal loss is very difficult, and in many instances the aborted fetus is reabsorbed or lost.
Proper nutrition, of course, is a critical factor in raising a healthy, sound foal–both for the broodmare before the foal is born as well as for the mare and foal throughout the foal’s development.
Is it possible to hear a fetal horse’s heart rate with a high-quality stethoscope? If so, at about what stage of gestation, and what is the optimal position of the drum?
Live cover breeding of horses remains a popular choice. Whatever your reason for choosing this method, these 10 tips will be useful as you plan a mating. Attention to safety and behavior go a long way in making the experience positive and successful.
A mare should be brought inside at night beginning 30 to 45 days before her due date. This is done for two reasons. The first is so she can become comfortable with the surroundings and feel that the foaling stall is a safe, private place. Mares that are not at ease might delay foaling and prolong their labor until they feel more secure. Such a delay can lead to complications.
Fertility issues in the horse can stem from multiple causes. One cause in mares is due to a disorder of sexual development (DSD) whereby the sex chromosome complement (genotype, or genetic code) is abnormal and does not agree with the external appearance of the horse (phenotype, or observable characteristics).
The 10th International Symposium on Equine Reproduction July 26-30 at the University of Kentucky was presented in four sessions: the non-pregnant mare, the stallion, conception and early development, and the pregnant mare and perinatology.
Mette Christoffersen, DVM, and Morten Petersen, PhD, DVM, Dipl. ACT, both from the University of Copenhagen, and Pauline Peugent, a French student working on her master’s degree, have spent several months in Lexington researching equine reproduction.
Our pregnant mare thinks another mare’s colt is hers. Is it common for pregnant mares to adopt others’ foals?
Equine arteritis virus (EVA) and equine herpesvirus-1 (EHV-1) are the two main topics of research for Udeni Balasuriya, BVSc, MS, PhD, associate professor of virology at the Gluck Equine Research Center.
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