ISER XIII

– Held in Brazil in August 2023, ISER XIII produced a variety of useful research with immediate clinical value, here we review some of the presentations

The thirteenth International Symposium on Equine Reproduction (ISER XIII) was held in Foz do Iguaçu, Brazil between July 10th–14th, 2023. Around 400 veterinarians, researchers and animal scientists were present, all leaders in the field of equine reproduction, and were able to listen to and review about 250 verbal or poster presentations with new research.

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 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 to 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.

Please check back as we add the reviews!


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...
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...
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...
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...
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...
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 ...