Equine Reproduction Service

Welcome to the Equine Reproduction Service at the UC Davis Veterinary Medical Teaching Hospital. Faculty and resident veterinarians in the service provide routine and advanced reproductive care to patients at the VMTH.

Services provided for mares include diagnostic work-ups on infertile mares, artificial insemination, ultrasonographic pregnancy diagnosis, twin reduction, pregnant mare care, obstetrics, and foaling management. In addition, our clinicians manage mares experiencing dystocia (difficult foaling), working in close collaboration with veterinarians specializing in surgery, neonatology, critical patient care and anesthesia.

Services provided for stallions include fertility evaluation, investigation of infertility, stallion breeding management, semen collection and evaluation, preparation and shipment of cooled semen, and freezing of semen. Also available are advanced reproductive technologies, including transvaginal aspiration of oocytes, ICSI, embryo transfer and collection and freezing of epididymal sperm.

Clinical Activities and Procedures

Medical/Obstetrics Services

A board-certified veterinary specialist in the obstetrics area of theriogenology and a veterinary technician are always available at the Veterinary Medical Teaching Hospital, where we can evaluate horses with medical needs such as:

  • Dystocia
  • Healthy broodmare management when accompanying sick foals
  • Late twin reduction
  • Fetal loss
  • Retained placenta
  • Endometrial cysts
  • Reproductive system tumors
  • High-risk pregnancy monitoring and foal watch
  • All manner of stallion fertility complaints

Reproduction Services

A board-certified veterinary specialist in reproduction area of theriogenology and a veterinary technician are always available at the Center for Equine Health, where we can evaluate horses with reproductive needs such as:

  • Mare breeding management
  • Pregnancy evaluations
  • Early twin reduction
  • Mare infertility evaluations
  • Healthy pregnant mare foal-watch
  • Full embryo transfers services, including a recipient mare herd
  • Stallion semen collection and processing for shipment
  • Stallion semen freezing
  • Stallion training for semen collection
  • Stallion infertility evaluations
  • Limited space for select breeding stallions “to stand”

Advanced Equine Assisted Reproduction (EqART): ICSI, Oocytes, and Embryos

Intracytoplasmic sperm injection (ICSI) technology requires technical skills that are typically not offered by veterinary practices and include aspiration of immature or mature eggs from mares using ultrasound-guided transvaginal aspiration (TVA) of follicles, in vitro culture of the eggs, micromanipulation and microinjection of eggs with a single selected sperm, and laboratory embryo culture, freezing, and transfer to synchronized recipient mares. Successful production of healthy foals is now routine from valuable mares and the ICSI technique has been commercially successful from several centers in the U.S., Europe, and Australia.

NEWS: UC Davis Announces First In Vitro Equine Pregnancy

VIDEOS:
Transvaginal ultrasound guided needle aspiration
Intracytoplasmic Sperm Injection (ICSI)
Equine Assisted Reproductive Technology

For more information, contact:
Dr. Ghislaine Dujovne, Chief of the Equine Reproduction Service
Dr. Stuart Meyers, Director of ICSI Laboratory 


Faculty

Ghislaine DujovneGhislaine Dujovne, DVM, MS, DACT
Chief of Service

 

 


Resident

Daniela OrellanaDaniela Orellana, DVM
Resident II

 

 

 

villanuevaEduardo Santos Villanueva, DVM
Resident I

 

 


Staff

Sarah Koshak

Alanna Schober