Late Term Pregnancy Problems in the Mare – Ventral Rupture in the Mare – A late-term mare presents with ventral oedema and obvious discomfort. What is the diagnosis and treatment? By Jonathan F Pycock, BVetMed, PhD, DESM, MRCVS, RCVS Specialist in Equine Reproduction First Published in UK VET 8;3, April 2003 The 19-year-old multiparous pregnant Percheron mare illustrated… Read More »
Managing Twinning in the Mare – While most equine pregnancies are simple, twinning when it happens is an issue. Here we discuss managing twinning in the mare. By Jos Mottershead and Kathy St. Martin You’ve read all the articles at Equine-Reproduction.com, your mare was in heat, you jumped through all the various hoops you needed to in order… Read More »
Equine Pregnancy Terminology – Conceptus? Embryo? Fetus? Abortion? Stillbirth? Premature? So many terms – a little light offered here in so much confusion! By Dr. Neil Williams, Livestock Disease Diagnostic Center, University of Kentucky, Lexington, Kentucky. There are different terms to describe the developing foal in utero. Furthermore, certain terms are used to describe the foal when it… Read More »
Oxytocin use in the mare during breeding – Delayed Uterine Clearance and Breeding-Induced Endometritis problems can be helped by Oxytocin use when breeding a mare! By Jos Mottershead Oxytocin acts on smooth muscle in the body, causing it to contract. One such area of tissue, which is of tremendous importance relative to breeding, is the mare’s uterus and… Read More »
Late Term and Habitual Abortion in the Mare – Pregnancy loss in the mare is a constant source of concern among breeders. Here some common causes are discussed. By Jos Mottershead Late term and habitual abortion in the mare is a constant source of concern among breeders. It may be as a result of identifiable repetitious causes, or… Read More »
Constructing An Emergency Slide Warmer – Sometimes lab equipment may not be available, so one has to become inventive. An emergency slide warmer is one such piece of equipment! By Jos Mottershead Sometimes lab equipment may not be available, so one has to become inventive. An emergency slide warmer is one such piece of equipment! Easily constructed –… Read More »
The Equine Uterus Dissected – Here we show the gross aspects of a mare reproductive tract dissected with labels and explanations. The caudal aspect (back end) of the cervix protrudes into the vagina and is often described as having an appearance and feel of a “small volcano”. There is a depression in the center, which is the opening… Read More »
Granulosa Cell Tumor – Capable of affecting reproductive ability and overall disposition, the GCT is one of the most common ovarian tumors to be found in the mare. By Jos Mottershead Granulosa cell tumors – GCT – or granulosa-thecal cell tumors are one of the most common ovarian tumors to be found in equines. They are usually benign… Read More »
Persistent Anovulatory Follicles – Anovulatory Hemorrhagic Follicles, Luteinized Unruptured Follicles, PAFs, AHFs, LUFs – all follicular headaches in the mare! By Jos Mottershead You’re following a mare’s follicular development using ultrasound prior to breeding and are relieved to see a good sized follicle developing. Unusually, the follicle continues to develop beyond the size at which you normally see… Read More »
Indications of Impending Ovulation in the Mare – Predicting ovulation in the mare can be a challenge with mares displaying different characteristics. Here we describe some common signs. By Jos Mottershead Predicting ovulation in the mare can be difficult, as they have the capacity to be notoriously unpredictable in their timing! This can lead to frustration, aggravation and… Read More »
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