Newer FAQ’s and Articles About Equine Reproduction

– A selection of equine reproduction articles more recently presented on the website on a variety of topics

Please Note: While we believe the information found on these pages to be accurate and up to date at the time of writing, it is provided here for informational purposes only, and is not intended to take the place of your veterinarian.

ISER XIII

ISER XIII - The three Js

Three “Js” – Professor John Newcombe, Dr. Juan Cuervo-Arango, and our own Jos Mottershead

We were extremely fortunate in that our lead lecturer Jos Mottershead was invited to attend the 13th International Symposium on Equine Reproduction (ISER XIII) in Brazil as a delegate. This has afforded us the opportunity to present new information to the breeding public – be they veterinarians in the field, lay breeders, or the many others for whom the information would be useful – via the website, our short courses and individual tuition, as well as the EquineRepro Facebook Group that we operate. In this latter media, we are presenting weekly posts with information which has immediate clinical value, and we are re-presenting those posts here on the website for our viewers as and when they are published in the Facebook Group.


Altrenogest Effect on Progesterone

Altrenogest Effect on Progesterone

Is it True Altrenogest Has an Effect on Progesterone Production? Pregnant and embryo recipient mares are often treated with supplemental progestins - commonly...
Badly Behaved Gelding

Badly Behaved Gelding

The Badly Behaved Gelding - Hormonally Driven or Not? "That is a badly behaved gelding - he must be 'proud cut'" or "I bet they left some testicular tissue in...
Blue Light

Blue Light

Does Maternal Exposure to Blue Light Affect Foal Development at Maturity? Because humans like to try and defy nature - January 1st being the "birthday" in...
Can Embryo Transfer Success Rates be Improved?

Can Embryo Transfer Success Rates be Improved?

Can Embryo Transfer Success Rates be Improved? Embryo transfer success rates are recognized as having a variable outcome dependent upon technician technique as...
Dead Sperm

Dead Sperm

Dead Sperm Do Not Cause Greater Uterine Immune Response! We know that sperm are the primary instigator for initiating the mare's post-breeding uterine inflammatory...
Diagnosis of Placentitis

Diagnosis of Placentitis

Diagnosis of Placentitis - Are Inflammatory Markers Useful? Placentitis is - literally and practically - "inflammation of the placenta" ("itis" as a suffix...
Endometrial Biopsy in the Mare

Endometrial Biopsy in the Mare

Endometrial Biopsy in the Mare - is one sample enough? An endometrial biopsy in the mare is a useful diagnostic to determine cellular health of the uterine lining...
Endometrial Cup Regression

Endometrial Cup Regression

Is it Possible to Cause Earlier Regression of the Endometrial Cups to Permit a Return to Breedable Estrus in the Mare? Unique to the early equine pregnancy...
Estimate Fetal Age

Estimate Fetal Age

A New Method to Estimate Fetal Age in the Mare Sometimes there arises a need to estimate fetal age in the mare, for which a breeding date perhaps is unknown. Several...
Frozen Semen for Standard IVF?

Frozen Semen for Standard IVF?

Frozen Semen for Standard IVF? In September of 2022, Felix et al. (University of Pennsylvania, New Bolton) published a paper which detailed the use of fresh...
Monitoring for EVA

Monitoring for EVA

Does Routine Monitoring for EVA Make a Difference? With the announcement this week of an outbreak of equine viral arteritis in PEI in Canada , a very reasonable...
N-acetylcysteine Improves Diagnostic Reliability

N-acetylcysteine Improves Diagnostic Reliability

Clean Culture and Cytology - Perhaps Not So Clean? For many years, the standard pre-breeding evaluation included a uterine swab culture alone. It was then determined...
Novel Treatment for Endometritis

Novel Treatment for Endometritis

Ozonated Sunflower Oil for Endometritis Treatment The overuse of antibiotics in medicine today - including equine reproduction - has led to searches for alternative...
Obese Mares

Obese Mares

Obese Mares Have More Problems Than We Thought! It has been previously documented that obese mares have a higher tendency towards early embryonic death, particularly...
Older Subfertile Mares

Older Subfertile Mares

Improve Pregnancy Rates in Older Subfertile Mares! How can one improve pregnancy rates in older subfertile mares? This category of mare is notorious for having...
Ovulatory Temperature Changes

Ovulatory Temperature Changes

Can Mare Temperature Changes Predict Ovulation? Temperature changes to predict ovulation are used in multiple species, including humans. The question has been...
Oxytocin Use to Support Pregnancy?

Oxytocin Use to Support Pregnancy?

Oxytocin Use to Support Pregnancy Instead of Regumate (Altrenogest)? It seems initially counter-intuitive to consider oxytocin use to support pregnancy instead...
Vitrification of Larger Embryos

Vitrification of Larger Embryos

Vitrification of Larger Embryos Successful vitrification of larger embryos - those >300µm - has typically not been achieved previously without use of the comparatively ...

OTHER NEW ARTICLES

In addition to the above ISER XIII summaries, we of course are ongoing in our production of new articles relevant to equine reproduction and the horse breeding process, which we list below:

Bacterial Infection of a Stallion's Reproductive Tract - Case Report

Bacterial Infection of a Stallion's Reproductive Tract - Case Report

Bacterial Infection of a Stallion's Reproductive Tract - A case report of the bacterial infection of a stallion's reproductive tract with images and outcome......
The Uterine Cytology Slide

The Uterine Cytology Slide

Preparing the Uterine Cytology Slide - Pre-breeding diagnostics should include the simple, rapid and easy-to-perform uterine cytology slide, which takes only about...