New Bolton Center Kennett Square, PA
Emergencies & Appointments:
Ryan Hospital Philadelphia, PA
Hofmann Center Mare in Field tp

Mare Services

  • Fertility Work-ups for Mares
    • The Hofmann Center offers a fertility work-up package for mares to determine if there are problems that may be associated with infertility.  The package includes:

    • Palpation and ultrasonographic evaluation of the mare’s reproductive tract per rectum
    • Uterine culture
    • Uterine cytology
    • Uterine biopsy
    • Manual, digital evaluation of the cervix
    • Vaginal speculum examination
    • For those mares requiring additional diagnostics, we also offer hysteroscopy, low volume uterine lavage with culture and cytology, endocrine testing and cytogenetic analysis.

    • If you are interested in a fertility work-up for your mare, please contact our reproduction team today by calling 610-925-6364.

  • Breeding Management
    • The Hofmann Center offers breeding packages for mares being inseminated with fresh, chilled or frozen semen.  The packages include all necessary transrectal ultrasonographic examinations and artificial inseminations.  Board, medications and other treatments (ie. uterine lavage, uterine infusions) are additional. 

    • Mares managed for frozen-semen breedings are carefully monitored throughout the daytime and evening hours and are inseminated via deep uterine horn insemination, timed carefully to coincide with ovulation.  All mares, including those with foals, receive personalized care including daily individual turnout in large outdoor paddocks.

  • Additional Mare Services
    • The Hofmann Center offers a wide variety of other reproduction services to mare owners including:

      • Pregnancy diagnosis
      • Fetal gender determination
      • Manual twin pregnancy reduction
      • Transvaginal twin pregnancy reduction
      • Treatment of uterine infections (bacterial and fungal)
      • Endometrial biopsy interpretation (in conjunction with the Pennsylvania Animal Diagnostic Laboratory System, PADLS). If you are interested in submitting an equine endometrial biopsy for processing and interpretation, , please fill out the Endometrial Biopsy Submission Form (PDF), and contact PADLS Mammalian Pathology Lab for more information, fees, and timeline for results. 

      In conjunction with our Board-certified surgeons, internists and imaging specialists, we also offer:

      • Surgery to improve mare perineal conformation
      • Evaluation of mid- and late-term pregnancies
      • Diagnosis and treatment of uterine and ovarian tumors
      • Uterine cyst removal
      • Cervical laceration repair
      • Ovariectomy
      • Foaling packages for high-risk mares
      • Laparoscopic treatment of blocked oviducts
  • Assisted Reproduction Services
    • Embryo Transfer
    • Oocyte Collection and ICSI: Intracytoplasmic Sperm Injection
      • For mares that are not suitable for embryo transfer, oocyte collection for performance of ICSI is another option that can produce embryos for transfer. Oocyte aspiration and ICSI can be used for mares with chronic uterine infections, cervical problems, oviductal problems and other issues that prevent them from conceiving or carrying a pregnancy.
      • Learn more about ICSI services...


Phone: 610-925-6364

Hofmann Center for Animal Reproduction
New Bolton Center
443 Bartram Road
Kennett Square, PA 19348