New Bolton Center Kennett Square, PA
Emergencies & Appointments:
Ryan Hospital Philadelphia, PA

Clinical Studies-New Bolton Center

Penn Vet has a long-standing history of being a leader in the veterinary community through the development of new knowledge originating from our many basic and clinical research programs.

We see extraordinary opportunities for growth for veterinary practitioners, almost all of which are in response to real-world needs and demands. Working with livestock, and poultry, we strive to improve the overall health, productivity and well-being of these animal industries.

From the recreational and sport activities of the equine industry, to the increasing demands by consumers for safe and plentiful food, the faculty and staff at New Bolton Center serve these many needs through our interactions with professionals and the public at a regional, national and international level.

Teaching of our future veterinarians plays a large role in this department’s efforts at Penn Vet. Students rotate through the numerous areas at New Bolton Center, including the Hospital for Large Animals, Swine Unit, and Marshak Dairy. This experience provides invaluable clinical training in the diagnosis, control and treatment of infectious and non-infectious animal diseases.

While all veterinary students are required to spend a minimum of six weeks at New Bolton Center’s Hospital, most students take advantage of the abundant opportunities to learn from the large caseload and dedicated faculty by scheduling additional rotations beyond the requirement.

Many large animal-oriented fourth-year students can spend a great majority of their final year rotating through the clinical and academic specialties at New Bolton Center, working side by side with the faculty.

This level and depth of interaction has allowed these students to be very competitive when pursuing internships and residencies, as well as highly sought-after positions in private practice following graduation.

Clinical Studies-NBC Chair

Dr. Katrin Hinrichs, Penn Vet New Bolton Center 

Academic Sections

  • Anesthesia


    Penn Vet’s academic veterinary hospitals were among the first to establish anesthesia as an independent specialty service and continue to have the some of the most experienced specialists in the world doing large animal anesthesia. New Bolton Center has the largest staff of board certified anesthesiologists and highly trained anesthesia technicians in the world specializing in large animals. Horses with major injuries can be recovered more safely from general anesthesia in our raft-swimming pool system, the only one of its kind in the world.



    • Jerianne Brandly, DVM, Resident
    • Alycia Frampton, DVM, Resident
    • Travis Mills, DVM, Resident
    • Megan Schnuelle, DVM, Resident
    • Learn more about Anesthesia...

  • Field Service

    Equine Field Service

    Our services are provided by, or in consultation with, two boarded specialists on staff (boarded internist, boarded equine practitioner) as well as access to consultation with all of the in hospital specialists including our ophthalmologist, surgeons and theriogenologists.

    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. We also offer reproductive management services.



    • Anna DiPastina, DVM, Resident
    • Emily Egolf, VMD, Resident (Food Animal/Ruminants)
    • Tara Gaab, VMD, Resident (Food Animal)
    • Caitrin Lowndes, MVB, Intern

    Learn more about the William Boucher Field Service…

  • Imaging


    Offering a comprehensive selection of imaging modalities, the imaging group specializes in large animal cardiac and ultrasound examinations, radiographs, bone scans, CT, and MRI examinations.

    New Bolton Center Imaging Services comprise:

    • Cardiology Imaging
    • Computed Tomography (CT)
    • Equimagine Robotic Imaging
    • Magnetic Resonance Imaging (MRI)
    • Nuclear Medicine
    • Radiology
    • Ultrasonography



    • Amanda Avison, DVM, Cardiology/Ultrasound Fellow


    • Andrew Adezio, DVM
    • Erica Dobbs, DVM
    • Rachel Durrwachter, VMD
    • Sydney Gibson, DVM
    • Rebeca Gomez, DVM
    • Elisa Heacock, VD
    • Christopher Koester, DVM
    • Maria Mulvihill, DVM
    • Lawrence (Alex) Quilty, DVM
  • Large Animal Medicine & Ophthalmology

    Internal Medicine

    The Internal Medicine Service at New Bolton Center is comprised of specialists in large animal internal medicine who are recognized internationally for their expertise in the diagnosis and treatment of medical disorders of all large animal species, and for their research on large animal diseases.

    These specialists diagnose and treat animals with medical problems including neurologic, respiratory, gastrointestinal, muscular, infectious, hematologic, renal and endocrine disorders.  


    The Ophthalmology Service at New Bolton Center provides complete ocular examination and diagnostics including slit lamp biomicroscopy, tonometry, ophthalmoscopy, ocular ultrasound, and electroretinography.

    The Ophthalmology Service treats eye conditions such as corneal ulcers, Equine Recurrent Uveitis, cataracts, and glaucoma. A full range of ocular surgery is offered for conditions including lid lacerations, deep corneal ulcers or perforations, periocular tumors, and cataracts.


    The Penn Vet Equine Pharmacology Laboratory, directed by Dr. Mary Robinson, performs pharmacological and forensic research.  This research provides the information needed for performing evidence-based medicine in working horses, and for designing drug testing policies that promote the welfare of working horses.  Dr. Robinson is also the Acting Director of the Pennsylvania Equine Toxicology and Research Laboratory (PETRL), which is the Commonwealth of Pennsylvania’s equine drug testing laboratory.

    • Mary Robinson, VMD, PhD, DACVCP, Assistant Professor, Pharmacology
    • Fuyu Guan, BSci, MSci, PhD, Research Professor of Equine Forensic Chemistry

    Internal Medicine

    Medicine Residents

    • Sarah Colmer, VMD
    • Carla Enriquez, BVM&S
    • Laurence Leduc, DVM
    • Andrea Oliver, DVM
    • Megan Palmisano, DVM
    • Clarisa Romero Hernández, DVM


    • Nicole Scherrer, DVM, Assistant Professor of Clinical Ophthalmology
    • Valerie Dufour, DVM, MSc, Resident, Ophthalmology (CSAM)
    • Harathi Krishnan, VMD, Resident, Ophthalmology (CSAM)


    • Mary Robinson, VMD, PhD, Director, Assistant Professor, Equine Pharmacology
    • Fuyu Guan, PhD, Research Professor, Equine Forensic Chemistry
    • Joanne Haughan, Mag. Med. Vet, Research Specialist
    • Youwen You, PhD, Research Assistant Professor, Equine Forensic Chemistry

    Teaching & Research Associate

    • Catherine Torcivia, DVM 

  • Population Medicine

    New Bolton’s Section of Population Medicine directly affects the lives of animals and humans alike and emulates the School’s mission of One Health.

    The section was established in 1986 (as Animal Production Systems) to implement teaching, research and service programs directed toward the improvement of health and productivity in food animal herds. These programs integrate expertise in disciplines such as clinical nutrition, reproduction, health economics and computer science in addition to conventional specialities in veterinary medicine. The focus of the Population Medicine group is the maintenance of physical and economic health in the whole animal population rather than clinical treatment of individual sick animals.

     Students learn to provide guidance on production efficiency, milk quality, reproductive efficiency and immunization programs for cattle.

    Faculty & Staff

    • Dr. Helen Aceto, Associate Professor of Epidemiology
    • Dr. Gary Althouse, Associate Dean of Sustainable Agriculture and Veterinary Practices, Jones Endowed Professor of Reproduction and Swine Health
    • Dr. Linda Baker, Associate Professor of Clinical Dairy Production Medicine
    • Dr. Joseph Bender, Assistant Professor of Clinical Dairy Production Management
    • Dr. Zhengxia Dou, Professor of Agricultural Systems, Section Chief, Population Medicine
    • Dr. Thomas Parsons, Professor of Swine Production Medicine
    • Dr. Meghann Pierdon, Assistant Professor of Clinical Production Medicine
    • Dr. Dipti Pitta, Associate Professor of Ruminant Nutrition
    • Dr. Laurel Redding, DACVPM, Assistant Professor of Epidemiology
    • Dr. Darko Stefanovski, Associate Professor of Biostatistics
      • Dr. Brianna Parsons, Lecturer, Sustainable Livestock Agriculture
    • Dr. Jen Yun Chou, Post-Doctoral Research Fellow, Swine Unit
    • Dr. Nagaraju Indugu, Bioinformatician A/Research Specialist
    • Dr.  Kapil Narayan, Post Doc Population Medicine
    • Bonnie Vecchiarelli, Research Specialist
    • John Toth, Research Specialist
    • Lisa Dewald, Administrative Assistant


    • Kris Smith, VMD, Resident, Poultry Welfare
  • Reproduction & Behavior


    New Bolton Center's Clinical Section of Reproduction & Behavior provides comprehensive reproductive services for mares and stallions. Based at the Georgia and Philip Hofmann Research Center for Animal Reproduction, the section’s clinicians have extensive clinical experience enhanced by the latest in research and technology.

    The section provides a wide range of reproductive services, from natural breeding to advanced assisted reproductive techniques like embryo and oocyte transfer. Stallions are a specialty and the section has extensive experience in dealing with male fertility and behavior problems; its equine behavior service is considered one of the best in the world. The section’s faculty members are board certified by the American College of Theriogenologists.


    Our Equine Behavior Program and Laboratory at New Bolton Center has grown from within the Section of Reproductive Studies. Since the early 1980s, the program, has had research as its core activity. The program has included involvement in related clinical and teaching in the veterinary school and continuing education programs nationally and internationally.


    • Dr. Kim Gleason, Equine ICSI Program Coordinator
    • Dr. Matheus Felix, Embryologist


    • Jenna Ward, DVM
    • Olivia Stonehouse, DVM
  • Surgery

    The Section of Surgery encompasses faculty and staff dedicated to Emergency & Critical Care, Large Animal Surgery, and Sports Medicine.

    Emergency & Critical Care

    Penn Vet’s New Bolton Center offers one of the nation’s few Emergency & Critical Care programs specifically dedicated to large animals. We have a team of dual board certified specialists trained in emergency/critical care, surgery and medicine that is available every hour of every day of the year and a nursing staff second to none.

    Large Animal Surgery

    Our surgeons are internationally recognized experts providing a complete array of sophisticated procedures including modern minimally invasive techniques such as arthroscopy, endoscopy, laparoscopy, laser and cryo-surgery.

    New Bolton Center’s surgical suite in the C. Mahlon Kline Orthopedic & Rehabilitation Center has state-of-the-art equipment for complex fracture repair, special air-handling capabilities to minimize surgical site contamination and a unique pool/raft recovery system. We have intraoperative computed tomography (CT scans) and fluoroscopy that allow the most accurate repair of even the most difficult fractures.

    Sports Medicine

    New Bolton Center is one of the world leaders in equine sports medicine. Our multidisciplinary team of board-certified internists, surgeons and sports medicine and rehabilitation specialists, in partnership with an internationally renowned farrier and specialized sports medicine and imaging technicians, evaluate and treat the equine athlete.

    Our Equine Performance Clinic specializes in:

    • Clinical evaluation of lameness
    • Rehabilitation of horses following an injury
    • Purchase examinations
    • Poor performance examinations

    We evaluate equine performance in the newly constructed Equine Performance Evaluation Facility, a state-of-the-art indoor facility. For comprehensive evaluation while a horse is exercising, we use both the Jeffords high-speed treadmill and over-ground dynamic endoscopy (miniaturized cameras/recorders attached to an endoscope that can evaluate a horse as it is being ridden).

    Both our Sports Medicine clinicians and surgeons benefit from state of the art imaging modalities (digital radiography, nuclear scintigraphy (bone scans), magnetic resonance imaging (MRI), exceptional quality ultrasonography and computed tomography (CT).  We have introduced robotic CT done in standing horses. In addition to the exceptional and tireless clinical work our faculty perform on a daily basis, they conduct groundbreaking research in their individual fields.

    Faculty & Staff

    Emergency & Critical Care

    Large Animal Surgery

    Sports Medicine

    Research Investigators

    Surgery Residents

    • Shannon Connard, DVM
    • Alycia Crandall, DVM
    • Jairo Perez, DVM
    • Catherine Thurston, VMD
    • Amanda Watkins, VMD
    • Katrijn Whisenant, DVM

    Musculoskeletal Research Fellow

    • Sarah Ciamillo, DVM

    CORL Research Fellows

    • Dr. Adriana Barba
    • Dr. Alessandra Fusco

    Surgery Interns

    • Dr. Violette Cassiers
    • Dr. Corinne Crosby
    • Dr. Martina Ernestova
    • Dr. Virginia Melly
    • Dr. Flavie Payette
    • Dr. Alexandra Usimaki

Research Centers & Laboratories at New Bolton Center

  • Animal Model Core & Comparative Orthopedic Research Lab (CORL)

    The Animal Model Core at Penn Vet New Bolton Center at the intersection of science and the rapid advancements in health care technology is an ecosystem supporting the continuum from discovery to invention to innovation in medical translation. We are invested in understanding the value proposition of emerging technologies under consideration and how they target unmet clinical needs. This process informs animal model development to enhance scientific rigor during in vivo studies in experimental or naturally occurring disease models. Studies can be iterative starting on a small scale leading towards pivotal non-clinical IND/IDE-enabling trials in support of FDA or OUS-FDA submissions.

    Read More About The Animal Model Core & Comparative Orthopedic Research Lab (CORL)
  • ASMG Laboratory - Microbial Genomics

    asmg-lab-new-bolton-center 500

    PLOS ONE Paper Among 100 Most Read Worldwide

    Editors have selected Dr. Pitta's PLOS ONE paper, “Temporal changes in the fecal bacterial community in Holstein dairy calves from birth through the transition to a solid diet,” to be highlighted on the journal homepage. The journal's editor, Nicola Stead, PhD, Senior Editor, PLOS ONE, states, "We very much enjoyed reading about your work and would like to thank you for submitting your paper to PLOS ONE."

    The Agricultural Systems and Microbial Genomics Laboratory (ASMG Laboratory) was established to support Dr. Dou and Dr. Pitta in their research endeavors.

    Dr. Pitta is the ruminant nutrition and microbiologist at the Center for Animal Health and Productivity (CAHP), New Bolton Center, University of Pennsylvania.

    new-bolton-center-asmg-lab-microbial-genomics 400

    Research at the ASMG lab focuses primarily on the gut microbial composition of ruminants utilizing advanced molecular methodologies. The alimentary tract of a ruminant is colonized by millions of microbes living in a symbiotic relationship with the host. Therefore, knowledge of the microbial composition of the entire gut can provide insights into improving the overall health and productivity of the animal. Our research  also has broad environmental implications into such diverse applications as methane mitigation, reduction of the spread of antibiotic resistance, and human health.

    The recent advent of next generation sequencers has greatly enhanced our ability to explore community microbial populations. The ASMG lab has the capabilities to perform genomic, metagenomic, and metatranscriptomic studies including sample preparation, genomic DNA and RNA extraction, and generation of 16S amplicon libraries for sequencing on next-generation platforms. The sequenced data is analyzed at the ASMG laboratory utilizing the appropriate bioinformatics tools for data interpretation.

    The ASMG group collaborates with other researchers and clinicians both within the University of Pennsylvania as well as at other institutions. Our research is routinely published and presented at conferences. We also work with students from multiple backgrounds, ranging from high school through postdoctoral, who have used their time in our lab to further develop their knowledge of microbial genomics and its applications. 

    Read More About The ASMG Laboratory - Microbial Genomics
  • Center for Animal Health & Productivity (CAHP)

    The Center for Animal Health and Productivity (CAHP) was established in 1986 to implement teaching, research and service programs directed toward the improvement of health and productivity in food animal herds and flocks.

    These programs involve an integrated approach making use of our expertise in clinical nutrition, reproduction, health economics, and computer science, in addition to conventional specialties in veterinary medicine.

    Our focus is the maintenance of physical and economic health in the whole animal population rather than clinical treatment of individual sick animals.

    Read More About The Center for Animal Health & Productivity (CAHP)
  • Equine Pharmacology Research Laboratory

    Dr. Mary Robinson, Equine Pharmacology

    Our Mission: The mission of the Equine Pharmacology Laboratory at New Bolton Center is to promote the welfare of the working horse and the integrity of sport through pharmacological and forensic research.

    Learn about us and our research...


    Read More About The Equine Pharmacology Research Laboratory
  • Galantino-Homer Laminitis Laboratory
    LDD Gross Composite

    Laminitis is a common and debilitating disease that affects the folded and interdigitating tissues, called the lamellae, which connect the hoof wall to the underlying tissues of the horse’s foot. The lamellae normally allow the transfer of the horse's weight from the skeletal elements of the digit to the hoof wall.

    Dr. Galantino-Homer founded the Laminitis Laboratory at New Bolton Center in 2008. The Laminitis Laboratory was formed in part due to the tragic loss of the 2006 Kentucky Derby winner, Barbaro, to laminitis in January, 2007.

    Our goal is to employ cell and molecular biology methods to better understand laminitis pathogenesis in order to improve the prevention, diagnosis, and treatment of this disease.

    Our studies include the investigation of laminitis pathogenesis using protein biochemistry, gene expression, and histological analysis, identification of diagnostic serum biomarkers for laminitis, characterization of the keratin proteins that determine the mechanical properties of the hoof lamellae and the effect of laminitis on keratins and associated cell adhesion proteins, the impact of cell stress pathways on laminitis, characterization of the epidermal stem cell population in the lamellae, and establishing an in vitro culture system for equine hoof epidermal cells to minimize the use of live horses for laminitis research.

    Learn About Our Work

    From the Laminitis Discovery Database (LDD) to ongoing, collaborative research studies, the Galantino-Homer Laminitis Laboratory has focused on this all too common disease for more than two decades. Learn more about our work. Explore what we do.

    Read More About The Galantino-Homer Laminitis Laboratory
  • Havemeyer Equine Behavior Research Lab

    Semi-feral pony herd at New Bolton Center

    The Equine Behavior Program and Laboratory at New Bolton Center has grown from within the Section of Reproductive Studies.  Since the early 1980s the program, has had research as its core activity.  The program has included involvement in related clinical and teaching in the veterinary school and continuing education programs nationally and internationally.  The initial research focus of the laboratory was on stallion reproductive physiology and behavior. 

    Early research concentrated on the physiology and pharmacology of libido, erection, and ejaculation, with immediate application to clinical problems in breeding stallions and with relevance to the understanding of human sexual dysfunction. 

    Another long-standing research interest of our laboratory has been the effects of experience on sexuHavemeyer Barnal function.  In the 1990s our research and clinical work expanded beyond stallions to include reproductive and general behavior problems of horses.

    The Behavior Lab is housed in The Havemeyer Barn at The Georgia and Philip Hofmann Center for Animal Reproduction. 

    Read More About The Havemeyer Equine Behavior Research Lab
  • Marshak Dairy

    Marshak Dairy, New Bolton Center

    The Marshak Dairy is named in honor of Robert Marshak, the ninth dean of the School of Veterinary Medicine whose support was instrumental in establishing the farm. Built in 1996, the greenhouse dairy was the first of its kind and was recognized as a dairy of distinction in 1998. The greenhouse design uses natural lighting and excellent ventilation within the barn to promote a healthy environment for the cows.

    The Marshak Dairy provides an easily accessible working dairy farm for research trials. In addition, the Dairy serves as a laboratory for teaching students on topics related to cow healthcare, preventive medicine, nutrition and food safety.

    Read More About The Marshak Dairy
  • Ortved Laboratory

    The Ortved Laboratory at New Bolton Center is focused on understanding the pathophysiology of post-traumatic osteoarthritis (PTOA) and developing gene and cell-based therapies to help regenerate cartilage and prevent the development of PTOA following joint injury.

    Due to the many similarities in joint biomechanics and propensity for PTOA, our lab uses the horse as a large animal model for human joint disease. Our goal is to develop translational regenerative therapies that would benefit both the equine and human patient.

    Lab Mission

    • To improve cartilage repair using stem cell and gene therapy.
    • To limit the long-term effects of joint trauma through gene therapy immunomodulation of the joint.
    • To further elucidate the pathogenesis of post-traumatic osteoarthritis (PTOA).

    Dr. Kyla Ortved, New Bolton Center

    Interested in Working With Us?

    We are always seeking highly motivated students and post-doctoral fellows with an interest in:

    • Orthopedic research
    • Joint disease
    • Stem cell therapy
    • Gene therapy
    • Regenerative medicine
    • Cartilage biology

    Contact: Dr. Kyla Ortved at

    Read More About The Ortved Laboratory
  • Reference Andrology Laboratory

    Impact of COVID-19 on Our Operations

    As of Friday, March 13, 2020, Penn Vet New Bolton Center’s Reference Andrology Laboratory (RAL) remains open and fully operational for normal business hours and services.

     We will continue to provide our regular services in response to client needs. Please contact us at 610-925-6562 for any questions.

    The Reference Andrology Laboratory provides complete testing of neat, cooled and frozen-thawed semen from mammalian and avian species. The primary purpose of these services is to aid practitioners in their differential diagnosis of individual/herd/flock reproductive problems.

    These services are also frequently used by practitioners and studs as a third-party quality control component in an ongoing stud auditing process.

    The laboratory strives to perform objective, validated techniques for assessing samples for the basic spermiogram parameters of sample volume, motility, morphology, and concentration. With advanced notification, we will also try to accommodate requests for supplemental assessment techniques on sperm subcellular structures. We also offer semen extender analysis and microbiological testing of the extended semen product and purified water used in extenders. 

    Read More About The Reference Andrology Laboratory
  • Swine Teaching and Research Center
    Penn Vet's Swine facilityToday the US swine industry finds itself confronted with rapidly changing public opinion and policy on how gestating sows should be housed. Penn Vet is uniquely positioned to provide the industry with relevant scientific data collected from this living laboratory. Read More About The Swine Teaching and Research Center
  • van Eps Laminitis Laboratory

    Over the last decade, the members of the van Eps Laboratory have recognized key differences (and some similarities) in the initial events that lead to the three types of laminitis:

    1. Sepsis-related laminitis (SRL)
    2. Endocrinopathic laminitis (associated with insulin dysregulation/hyperinsulinemia)
    3. Supporting limb laminitis (SLL)

    A focus on these early events is leading to a better understanding of why laminitis occurs in different clinical situations and is helping to identify therapeutic targets.

    Our goal is to identify the key pathophysiological events that lead to different forms of laminitis in order to develop clinically applicable means of preventing this crippling equine disease. 

    Read More About The van Eps Laminitis Laboratory