Contact
New Bolton Center Kennett Square, PA
Emergencies & Appointments:
610-444-5800
Directions
Ryan Hospital Philadelphia, PA
Emergencies:
215-746-8911
Appointments:
215-746-8387
Directions
New Bolton Center Field Service is always ready to help

Food Animal Field Service


The food animal ambulatory practice provides services in herd health and preventative herd health through sick animal management, diagnostic and clinical pathology, record analysis and protocol development. Reproductive management is provided through clinical herd animal evaluations and analysis of reproductive performance using various record systems. Disciplines of clinical internal medicine evaluation, diagnostic ultrasound, food animal surgery, clinical nutrition, milk quality, and production record evaluation, are employed to provide exemplary service to our clients. A full-time emergency service is provided annually.

The goal of the bovine practice is to provide food animals with health and preventative health care, and reproductive management. The service provides a wide variety of practice experience including work with expanding dairy herds, beef cow/calf operations, beef feedlot operations. The practice also cares for various sheep and dairy goat operations and a limited number of swine. 

New Telehealth Service in Response to COVID-19

In response to the COVID-19 emergency, New Bolton Center is offering telemedicine to our Field Service clients.

Contact Field Service

  • Appointments
    Monday- Friday, 8 am-5 pm
  • Ph: 610-925-6310
  • Emergencies
  • Ph: 610-444-5800
  • Fax: 610-925-6803

Meet the Food Animal Team

Food Animal Field Service comprises board-certified specialists with decades of field service expertise, along with clinical residents, certified veterinary technicians, and administrative support so we can handle your needs in a timely and efficient manner.


  • Dr. Michaela A. Kristula

    Dr. Michaela Kristula, New Bolton Center• Associate Professor of Medicine (CE)
    • Section Chief – Field Service

    Section of Field Service
    Department of Clinical Studies – New Bolton Center
    kristula@vet.upenn.edu
    382 West Street Road
    Kennett Square, PA 19348
    PHONE: (610) 925-6310
    FAX: (610) 925-6803

    Education
    • MS, Comparative Medical Sciences, University of Pennsylvania School of Veterinary Medicine, Center for Animal Health and Productivity, Philadelphia, PA 1990
    • Residency, University of Pennsylvania School of Veterinary Medicine, Kennett Square, PA, 1986
    • Internship, University of Pennsylvania School of Veterinary Medicine, Kennett Square, PA, 1985
    • DVM, Virginia Maryland Regional College of Veterinary Medicine, 1984
    • BS (Biology), Virginia Tech, Blacksburg, VA,1979

    Honors and Awards
    • USDA/APHIS Recognition Award, 2008-2010

    Clinical Interests
    Dr. Kristula’s clinical focus is on dairy cattle, production medicine, milk quality and equine contagious metritis.

    Research Interests
    Dr. Kristula's research interests include mastitis in dairy cows and recycled sand.

  • Dr. Billy I. Smith

    Billy Smith-New Bolton Center• Associate Professor of Medicine (CE)
    • Service Chief – Food Animal
    • Course Organizer – Section of Field Service

    Section of Field Service
    Department of Clinical Studies – New Bolton Center
    bis@vet.upenn.edu
    382 West Street Road
    Kennett Square, PA 19348
    PHONE: (610) 925-6310
    FAX: (610) 925-6803

    Education
    • Diplomate, American Board of Veterinary Practitioners (Food Animal Practice), 1997, 2007, 2017
    • MS, Veterinary Medicine, University of Florida, Gainesville, FL, 1998
    • Residency, University of Florida, Gainesville, FL, 1992-1996
    • Internship, Utah State University, Logan, UT, 1991-1992
    • DVM, Louisiana State University, Baton Rouge, LA, 1991
    • BS, Dairy Science, Louisiana State University, Baton Rouge, LA, 1987

    Honors and Awards
    • Lindback Award for Distinguished Teaching, 2016
    • 2013 White Coat Ceremony Speaker, Chosen by Class of 2015
    • PENN Veterinary Medicine House Officer Mentoring Award, 2011
    • 2009 White Coat Ceremony Moderator, Chosen by Class of 2011
    • 2008 White Coat Ceremony Speaker, Chosen by Class of 2010
    • 2006 Veterinary Medical Student Government Teaching Award, Presented by The Class of 2009
    • Carl Norden-Pfizer Distinguished Teacher Award, 2003
    • Dean’s Award for Leadership in Clinical Science Education, 2003
    • 2001 Veterinary Medical Student Government Teaching Award, Presented by The Class of 2001
    • Resident of the Year, University of Florida, College of Veterinary Medicine, Presented by The Class of 1994

    Clinical Interests
    Dr. Smith clinical focus is on transition dairy cow management of medical and surgical problems, monitoring bovine health protocols in dairy and beef herds, and implementation of preventative disease measures in food animals.

    Research Interests
    Dr. Smith's research interests include all aspects of ruminant preventative health, medicine, and surgery with special emphasis placed on the following:
    • bovine lameness, specifically functional foot trimming
    • bovine reproduction, specifically postpartum uterine disease and twinning
    • ruminant preventative health, specifically vaccination response and pain management

  • Dr. Emily Egolf

    Emily-Egolf• Resident, Food Animal Field Service

    Section of Field Service
    Department of Clinical Studies – New Bolton Center
    eegolf@vet.upenn.edu
    382 West Street Road
    Kennett Square, PA 19348
    PHONE: (610) 925-6310
    FAX: (610) 925-6803

    Education
    • Residency, University of Pennsylvania, Kennett Square, PA, Currently enrolled
    • Internship, Ohio State University Large Animal Services, Marysville, OH, 2020
    • VMD, University of Pennsylvania, Kennett Square, PA, 2019
    • BS (Animal Science), University of Vermont, Burlington, VT, 2015

    Honors and Awards
    • University of Pennsylvania, Field Service Prize, 2019
    • University of Pennsylvania, Large Animal Reproduction Prize, 2019

    Clinical Interests
    Dr. Egolf’s clinical interests include health, productivity, and reproductive techniques in dairy cattle, small ruminants, and camelids.

  • Dr. Ann DiPastina

    Dr. Ann DiPastina, Penn Vet• Resident, Food Animal Field Service

    Section of Field Service
    Department of Clinical Studies – New Bolton Center
    adipa@vet.upenn.edu
    382 West Street Road
    Kennett Square, PA 19348
    PHONE: (610) 925-6310
    FAX: (610) 925-6803

    Education
    • Residency, University of Pennsylvania, Kennett Square, PA, Currently enrolled
    • Internship, Colorado State University Livestock Medicine, Surgery, and Field Service, Fort Collins, CO, 2020
    • DVM, Michigan State University College of Veterinary Medicine, East Lansing, MI, 2019
    • BS, Cornell University College of Agriculture and Life Sciences, Ithaca, NY, 2015

    Clinical Interests
    Dr. DiPastina's clinical interests include reproductive physiology, dairy, small ruminant, and camelid production medicine, and surgery.

  • Dr. Mary Jane Drake

    Dr. Mary Jane Drake, Penn Vet New Bolton Center• Resident, Food Animal Field Service

    Section of Field Service
    Department of Clinical Studies – New Bolton Center
    drakem@vet.upenn.edu
    382 West Street Road
    Kennett Square, PA 19348
    PHONE: (610) 925-6310
    FAX: (610) 925-6803

    Education
    • Residency, University of Pennsylvania, Kennett Square, PA, Currently enrolled
    • Internship, Tufts University Veterinary Field Service, Woodstock CT, 2021
    • VMD, University of Pennsylvania, Kennett Square, PA, 2020
    • PhD (Cell & Molecular Biology), University of Pennsylvania, Philadelphia, PA, 2016
    • BS (Biochemistry & Molecular Biology), University of Richmond, Richmond, VA, 2011

    Honors and Awards
    • University of Pennsylvania, American College of Veterinary Surgeons Large Animal Surgery Prize, 2020
    • University of Pennsylvania, Morris L. Ziskind Prize in Food Animal Medicine, 2020

    Clinical Interests

    Dr. Drake’s clinical interests include production health management, as well as medicine and surgery of dairy cattle, small ruminants, and swine.

Clinical Services

Field Service has a heavy case load with approximately 13,000 animals seen annually. The service has access to various state of the art practice modalities such as: 

  • Animal Health Care

    • Digital radiography
    • Ultrasonography
    • Blood analysis

  • Preventative Health Care

    • Milk Quality Analysis
        - Tri-scan Milking Unit Analyzer
    - Lactoquarter Milking Unit Analyzer
        - Parlor Pal Milker Analyzer
    • Ventilation Analyzer
        - Air quality/speed analyzer
    • Calf Health and Management
        - Refractometer (colostrum management)
    • Reproductive Management
        - Synchronization analysis
        - Obstetrical equipment

  • Specialist Consultation

    • Surgical consultation
    • Medical consultation
    • Pathobiological evaluation
    • Microbiological evaluation
    • Clinical pathology evaluation

  • Annual Producer Educational Seminars

    • Milking procedures
    • Calving/dystocia procedures

  • Record Analysis

    • VETSTAR (state-of-the-art practice management software)
    • Dairy Comp 305
    • PC Dart


Emergency Services

  • Food Animal Field Service provides on-farm emergency services year-round (including holidays), 24 hours per day, seven days per week, 365 days per year to Field Service clients with the ability  to consult with a range of world-class in-house specialists.