Reproduction (Theriogenology)

Derek Kraayenbrink reviewing semen collection under microscope
Derek Kraayenbrink,Cryolaboratory Coordinator

NEW Stallion Station

We are excited to offer stallion reproductive services this season with our new stallion collection facility.


  • Semen collection for evaluation and cooled shipments (outpatients or standing stallions)
  • Semen cryopreservation for both domestic and international use
  • Alternative collection methods: collection off jump mares, ground collection, and pharmacologically-induced collection
  • Evaluation of subfertility or fertility concerns
  • Evaluation of and management of penile injuries
  • 24/7 Emergency Services



  • Fertility evaluation
  • Routine breeding management with fresh, shipped cooled, and frozen semen
  • Pregnancy diagnosis and monitoring throughout gestation
  • Fetal gender determination
  • Diagnosis and reduction of equine twins
  • Diagnosis and treatment of uterine and ovarian pathology
  • Evaluation and monitoring of high-risk pregnancies, complications during foaling, and the immediate postpartum period
  • Foaling management of both normal and high-risk pregnancies
  • Embryo collection for shipment or direct transfer to recipient mares
  • Endoscopy with laser-surgery capabilities
  • Collection and shipment of oocytes postmortem for ICSI fertilization
  • 24/7 Emergency Services

Contact Information

If you are interested in scheduling an appointment, or consultation, please contact us through Large Animal Hospital at 515-294-1500.

Foal and mare

Hospital Address
1809 S. Riverside Drive
Ames, IA 50011

Semen Shipment Address
ATTN: ISU Theriogenology Service
1452 Vet Med
1800 Christensen Drive
Ames IA 50011