Theriogenology

Dr. Hayna is a board-certified theriogenologist dedicated to educating students and providing clients the highest quality of reproductive care for mares and stallions. Each mare and stallion receive individualized care to support the goals for their breeding program. Whether you have years of breeding experience, or this is your first time, we are here to support you and help you learn along the way.

Our services are available to patients both inside and outside the Purdue University Equine Hospital. To schedule an appointment for your animal, please call our reception staff at 765-494-8548 between 8:00 a.m. and 5:00 p.m., Monday through Friday.

In case of emergency, call the same number and tell the operator that you have an animal emergency. The operator will then provide your information to the clinician who will return your call.

Normal receiving hours are 8:00 a.m. to 5:00 p.m. with appointments scheduled at 9:30 a.m. or 1:00 p.m. Monday through Friday. We provide emergency care for sick or injured animals 24 hours a day, 365 days a year.

Mare Services

• Mare breeding management
• Pregnancy evaluations & gestational management
• Twin reduction
• Mare infertility evaluations
• Embryo recovery, transfer, freezing & shipping
• Infertility evaluations & diagnostic workups
• Breeding soundness exams
• Artificial insemination - fresh or frozen, deep horn- Packages available that include all trans-rectal ultrasounds & Artificial insemination. Board, medications, lavages, uterine infusions are all additional
• Dystocia
• Correction of retained placenta
• Culture & cytology (if needed)
• Biopsy & Interpretation
• Management of foal heat breeding
• Fetal sexing
• High risk pregnancy diagnostics & management
• Intrauterine platelet rich plasma infusion - Process of collecting blood from a mare, centrifuging the blood, pulling off the plasma, and infusing the plasma into her uterus. This helps to mitigate post-breeding inflammatory response and can help improve the fertility of mares with persistent breeding-induced endometritis.
• Caslicks
• Limited space for foaling high risk mares that are previously established with the progrom

Stallion Services

• Semen collection on a haul-in basis - phantom and ground collection
• Evaluation of semen (volume, concentration, motility, morphology)
• processing & shipping of cooled & frozen semen
• Semen freezing
• Phantom training for semen collection. Can be done with both young inexperienced stallions, or stallions who have previously only been used for live cover
• Investigation of infertility and low libido
• Breeding soundness exams
• Peri-Mortem epididymal collection & cryopreservation
• EVA testing and vaccination

About Our Services

Pregnancy Monitoring

Frequent pregnancy monitoring is important to minimize the risk of a mare aborting a fetus. Trans-rectal and trans-abdominal ultrasound can be used to diagnose issues such as placentitis and premature placental separation. If your mare is diagnosed with one of these issues, she is considered “high risk” and needs to be supported with a treatment protocol.

Dystocia

In the event of a Dystocia, we have emergency staff available 24/7. We have board-certified surgeons and anesthesiologists available for c-sections and board-certified internists to care for the compromised foal.

Artificial Insemination

Artificial insemination allows for a higher conception rate by closely monitoring the mares reproductive cycle and ovulation patterns as well as thorough evaluation and careful timing and handling of the semen.

Clinical Studies

Click here for more information on our current equine clinical studies.