Registration is closed-onsite registration will be available

Large Animal Speakers

Geof Smith


Friday, February 10

  • Treatment of Calf Diarrhea: Oral Electrolytes

  • Treatment of Calf Diarrhea: IV Fluids

  • Treatment of Calf Diarrhea: Ancillary Therapy

  • Prevention of Calf Diarrhea

Geof Smith received a BS in animal and dairy science from Clemson University in 1994.  From there he received a MS in toxicology from University of Illinois in 1996 and a DVM in 1998.  Following graduation, Geof remained at the University of Illinois for another 4 years while he completed an internship and residency in ruminant internal medicine along with a PhD in physiology.  Dr Smith joined was a Professor of Ruminant Medicine at North Carolina State University for 20 years before joining Zoetis as a Dairy Technical Services Veterinarian.  He is a Diplomate of the American College of Veterinary Internal Medicine (ACVIM) and his primary clinical and research interests revolve around clinical medicine of ruminants with a specific focus on calf health.   He has published over 100 peer-reviewed manuscripts and has edited 2 books on calf health and fluid therapy.

Jennifer Halleran



Friday, February 10

  • Small Ruminant Dermatology

  • Small Ruminant Parasites

  • Small Ruminant Antimicrobial Use

Jennifer Halleran is originally from New Jersey.  She attended the University of Rhode Island for her undergraduate studies.  She went to Colorado State University for her veterinary degree, followed by an internship in Ruminant Health Medicine at North Carolina State University. From there, she pursued a Large Animal Internal Medicine Residency with a focus on Food Animal Medicine at Oklahoma State University.  After completion, she went back to North Carolina State University to complete a PhD in the area of infectious disease with a focus on antimicrobial resistance of enteric bacteria in cattle following various antimicrobial administrations.  She currently is an Assistant Professor in Ruminant Medicine at NCSU, with a research area focused on antimicrobial resistance and understanding urolithiasis etiology.  She currently also sits on the advisory council for NIAMRRE.

Scott Morrison



Saturday, February 11

  • Shoeing the Sport Horse

  • Shoeing for Chronic Laminitis

  • Foal Foot Care and Management

  • Infections and Injuries to the Foot

Dr. Morrison graduated from the Virginia Maryland Regional College of Veterinary Medicine in 1999. Upon completion of his internship at Rood & Riddle Equine Hospital, he founded the Rood & Riddle Podiatry Center. Dr. Morrison was inducted into the International Equine Veterinarian Hall of Fame in 2007.  He focuses on race horses, foals, and sport horses. Outside of RREH, he enjoys spending time on his farm with his family and pets.  Dr. Morrison also enjoys competing in the jumpers.

Russell Freeland


Saturday, February 11

  • Back Pathology and Treatment in the Performance Horse

  • Septic Arthritis and Osteomyelitis in the Foal

  • Current Joint Therapies

Dr. Freeland grew up in agriculture in southwest Louisiana. He attended Louisiana State University earning a bachelor’s degree in wildlife ecology and a Doctor of Veterinary Medicine. After graduating he spent a year in a general and referral large animal private practice in Colorado as an intern. Following his internship, Dr. Freeland worked in upstate New York in general and referral equine practice prior to starting a large animal surgery residency. Dr. Freeland was trained in soft tissue and orthopedic surgery as well as sports medicine at the University of Wisconsin. During this time, he also performed research in the area of equine wound management. Dr. Freeland has a special interest in orthopedics and lameness in the performance horse. He is a board-certified large animal surgeon by the American College of Veterinary Surgeons. He is a member of the American Association of Equine Practitioners, American Association of Bovine Practitioners, and the American Veterinary Medical Association. Dr. Freeland has spent the last four years in private practice in Texas.

Outside of practice, Dr. Freeland enjoys the outdoors, spending most of his free time hunting, fishing, flying, and diving.

Karen Von Dollen


Sunday, February 12

  • Endometritis in the Mare: Advances in Diagnostics and Treatment

  • How to Maximize Pregnancy Rates With Cooled and Frozen Semen

DVM: University of California-Davis 2014
Internships: Alamo Pintado Equine Medical Center in California and Goulburn Valley Equine Hospital in Australia
Theriogenology residency: North Carolina State University
Diplomate of the American College of Theriogenologists: 2018
MS North Carolina State University: 2019
Research and thesis focused on exploring the activity of antibiotics in uterine fluid.

Clinical interests include all aspects of mare and stallion breeding management, with a particular passion for assisted reproductive techniques.

Karen Wolfsdorf


Sunday, February 12

  • Hormonal Manipulation of Abnormal (and Normal) Estrous Cycles in the Mare

  • Diagnosis and Management of Twins in the Mare

Dr. Karen Wolfsdorf attended veterinary school at the University of Florida and graduated in 1992.  After completion of her DVM, she began an equine field service internship at North Carolina State University.  In 1995, Dr. Wolfsdorf completed a residency in Theriogenology at the University of Florida and became board certified in Theriogenology.  Before coming to Hagyard Equine Medical Institute, she spent time working in Australia with Dr. Pascoe at Oakey Veterinary Hospital.  In 1996, Dr. Wolfsdorf joined Hagyard as an Associate and in 2002 she became one of the first two woman Members of the Practice.  Dr. Wolfsdorf’s main area of interest is infertility in the mare and problems during pregnancy.  She spends her time working as a field veterinarian and as a specialist at the McGee Fertility Center.

She has authored many chapters on equine reproduction as well as lectured worldwide and published research regarding progesterone, retained endometrial cups and equine twin reduction with cranio-cervical dislocation.

Kathy MacGillivray



Sunday, February 12

  • Common Disorders of the Neonatal Foal Part I

  • Common Disorders of the Neonatal Foal Part II

Graduated from the University of Pennsylvania Veterinary School and subsequently did rotating hospital rotating internship at Peterson and Smith in Ocala Florida. Working with Carol Clark at P&S furthered my desire to specialize in internal medicine.  Returned to the University of Pennsylvania and completed my residency in internal medicine at New Bolton Center.

My husband and I liked the area and decided to buy a small farm near New Bolton and stay in the area.  Right after our barn was built, I learned of a job opening at Hagyard Equine.  After a visit, I knew this was my “dream job” and convinced my husband we should sell the farm and move to Lexington Kentucky.  I have been an internist at Hagyard since 2003.