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Reproductive Services

We offer a wide range of services to assist you in achieving your reproductive goals. Ultrasound evaluation of the reproductive tract and pregnancy detection can be performed both in clinic and on the farm. Artificial insemination is available using either fresh shipped semen or frozen semen. Embryo transfer is yet another tool we can utilize to assist you in advancing your reproductive program.

We are currently exploring the possibility of stallion collection and semen shipment. Please contact the office if you would like to take advantage of this opportunity.


  • Reproductive soundness exam: Performed when the mare is showing signs of estrus, otherwise known as “in heat”, to ensure the mare’s capability of becoming and maintaining a pregnancy. Initially we will examine the vulva and perineal areas, followed by ultrasound of the entire reproductive tract. A uterine culture will be collected and treatment initiated as needed. Although not routine, we may at times recommend a uterine biopsy. Ideally, the reproductive soundness exam will be performed one estrus cycle prior to the desired breeding cycle to allow for treatment if necessary.
  • Ultrasound: It is possible to follow your mare’s reproductive cycle via ultrasonic measurement of growing follicles and evaluation of the uterine body. Ultrasound frequency and timing will vary based on type of breeding desired.We recommend a pregnancy ultrasound 15-17 days post ovulation. This will allow us to detect a pregnancy and look for twins. If a pregnancy is not detected, we can begin following the next follicle.Due to the high number of abortions in the first trimester, we also recommend an ultrasound at 30 days. Palpation between 45-60 days of pregnancy further allows us to follow the pregnancy.
  • Artificial Insemination with Fresh Shipped Semen: We have been performing artificial insemination using shipped semen since 1995, and have achieved approximately 85 % pregnancy rate. We can follow and breed your mare with her in our clinic or, facilities allowing, on your farm.To ensure insemination at the appropriate time, we will follow your mare’s estrus cycle via ultrasound. Once the follicle is near ovulation we will notify the stallion owner and make arrangements for semen delivery. Depending on the situation, we may breed your mare with multiple times in the same cycle. Finally, we will check for pregnancy 15-17 days post ovulation.
  • Artificial Insemination with Frozen Semen: Although more challenging, we have been offering frozen semen artificial insemination for more than 10 years. Due to the technical nature of the procedure, we require the mare to stay at the clinic during breeding.Frozen semen is more fragile and has a smaller volume than fresh shipped semen, therefore making the timing of insemination more critical. Mares will be monitored with ultrasound every 8 hours, and bred promptly after ovulation.Due to an increased number of mares having a reaction to frozen semen, we will keep the mare for 2 days following insemination. During this time she will be monitored for fluid accumulation in her uterus. If noted, appropriate measures can be taken to correct the problem without affecting the likely hood of conception.
  • Embryo Transfer: The mare is bred normally, noting time of ovulation. 7 days post ovulation, the uterus is flushed and a microscopic embryo recovered. This embryo is then transferred to a facility that has a mare whom mimics the donor mare’s estrus cycle. The embryo is then transferred into the recipient mare, who is checked for pregnancy 17 days from the original ovulation date.The donor mare may produce several embryos in one breeding season. Please check your with your breed registry on restrictions relating to embryo transfer.