I Gave My Mare Prostaglandin, But It Didn’t Work! – Commonly it’s used in the mare to cause her to enter estrus, sometimes prostaglandin fails to cause estrus – why? By Jos Mottershead Hormones are commonly used in the mare to cause her to enter estrus (come in to “heat”), but sometimes it doesn’t work, so here we… Read More: Why Prostaglandin Fails in Mares »
Progesterone and Estradiol – when it comes to hormonal manipulation, nithing beats P&E! In many cases it allows pinpointing of ovulation to the day in mares. There are times when it is desirable to cause a mare to enter estrus and ovulate within a specific time period. It may be that frozen semen is being used, when the… Read More: Progesterone and Estradiol (“P&E”) Hormonal Manipulation »
Breeding a Mare with Shipped Semen – Often perceived as going to be difficult, this can be a simple matter with some careful preparation, awareness and communication! By Jos Mottershead There are probably two major keys to successfully breeding a mare with shipped semen – preparation and communication. Carefully preparing your mare, and the associated monitoring of her… Read More: Cooled Transported Semen Breeding – Some Pointers »
I gave my mare Progesterone (or Altrenogest), but it didn’t work! – an explanation of some of the causes of failure of promotion of estrus and other problems. By Jos Mottershead Progesterone or the synthetic progestin analogue altrenogest (e.g. Regumate1) is commonly used in the mare to cause her to enter estrus (come in to “heat”) at an… Read More: When Progestin Therapy Doesn’t Work »
Love me or love me not, but successful breeding takes more than chance – An older but updated article covering some of the more important items to consider for success! By Jos Mottershead Printed in Atlantic Horse and Pony, Jan/Feb, 1992 This article was written in 1992 and was published in a Nova Scotian magazine. Some of the… Read More: Successful Breeding Takes More Than Chance »
When Should You Breed Your Mare? Winter, Spring, Summer, Fall: consider the options – Seasonality can play a part in choosing the right time of year for your foal to be born and your mare to be bred! By Jos Mottershead Printed in Atlantic Horse and Pony, February, 1996 This article about when to breed a mare was… Read More: When to Breed a Mare »
Timed Insemination Protocol for Frozen Semen Use – Use of frozen semen in the mare may be “labour intensive”, but timed insemination can really simplify things! By Jos Mottershead The use of frozen semen has long been promoted as complicated and time consuming. Veterinarians and reproductive specialists have often been unenthusiastic about its use because of the intensive… Read More: Timed Insemination Breeding »
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: Ventral Rupture in the Pregnant Mare »
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: Double Trouble – The Twin Dilemma »
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: When is an Embryo not an Embryo? »
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