Livestock Research

This page categorizes OVC researchers according to the livestock animal species that they primarily study in their research programs.




Dr. Leonardo Susta: Associate Professor; Diplomate, ACVP

  • Avian virology; Diseases and diagnostic pathology of poultry; Diseases and diagnostic pathology of pet birds; Use of avian viruses as oncolytic agents



Dr. Jeff Caswell: Professor; Diplomate, ACVP

  • Innate resistance to opportunistic bacterial infection; Pathogenesis of infectious diseases of the respiratory system; Bacterial pneumonia

Dr. Jessica Gordon: Assistant Professor

  • Youngstock; Transition dairy cow; and Beef cow health and management



Dr. Todd Duffield: Professor

  • Metabolic Disease in Dairy Cows; Impact of Ionophores in dairy cattle; Impact, prevention, and management of production limiting disease; Pain management of dairy cattle including disbudding, surgery, dystocia

Dr. David Kelton: Dairy Farmers of Ontario Chair in Dairy Cattle Health; Professor

  • Infectious and metabolic diseases of dairy cattle, including Johne's Disease, bovine mastitis, and bovine lameness

Dr. Stephen LeBlanc: Professor

  • Dairy cattle health and performance; Dairy cattle reproduction and metabolic health

Dr. Bonnie Mallard: Professor

  • Genetic regulation of the immune system and implications to disease resistance; preventive methods to improve disease resistance of livestock; xenotransplantation; peripartum immune responses

Dr. David Renaud: Assistant Professor

  • Improving the health and welfare of calves; Identifying risk factors associated with mortality at milk-fed and grain-fed veal operations; Exploring novel strategies to reduce antimicrobial use in the veal sector; Evaluating the utility of navel disinfection in dairy calves; Identifying new technologies to improve calf health and welfare

Dr. Charlotte Winder: Assistant Professor

  • Pain management in ruminants; Health management and performance of youngstock; Knowledge translation and transfer; Knowledge synthesis



Dr. Luis Arroyo: Associate Professor; Diplomate, ACVIM

  • Equine gastroenterology; Clostridium difficile associated diarrhea; Equine undifferentiated diarrhea; Equine vascular pathologies; Arterial calcification; Biomechanical properties of the pulmonary artery

Dr. Janet Beeler-Marfisi: Assistant Professor

  • Lung disease in horses; Relationships between air pollution and incidence of asthma; Methods for understanding how lung diseases arise; Diagnostic methods

Dr. Dorothee Bienzle: Professor

  • Role of the epithelium in equine asthma; Development of novel diagnostic assays

Dr. Tracey Chenier: Associate Professor; Diplomate, ACT

  • Equine reproduction; Causes of abortion in mares; Persistent-breeding induced endometritis

Dr. Diego Gomez: Assistant Professor, Diplomate, ACVIM

  • Colitis in Horses; Neonatal Calf Diarrhea; Acid-Base Disorders and Fluid Therapy in Critically ill Patients; Microbiota assessment in mammals

Dr. Amy Greer: Canada Research Chair in Population Disease Modeling; Associate Professor

  • Introduction, spread, dynamics, and control of infectious diseases in populations

Dr. Joanne Hewson: Associate Professor; Diplomate, ACVIM

  • Equine respiratory disorders; Equine neonatology

Dr. Thomas Koch: Associate Professor

  • Stem cell and tissue engineering-based therapies for joint cartilage repair; Synovial joint health; Joint homeostasis; Chondrogenic cell fate; Translational animal models of disease; Regenerative medicine; Improved animal welfare through regenerative medicine approaches; Translation of novel therapies to human medicine

Dr. Judith Koenig: Associate Professor; Diplomate, ACVS; Diplomate, ACVSMR

  • Use of allogeneic cord blood stem cells for tissue regeneration; Effect of shockwave on stem cells; Effect of shockwave on wound healing in horses; Evaluation of the significance of caudal facet arthropathy in Sports horses; Evaluation of different medications on coffin joint osteoarthritis ; Rehabilitation

Dr. Chantale Pinard: Associate Professor; Diplomate, ACVO

  • Equine ocular inflammation

Dr. Melissa Sinclair: Associate Professor; Diplomate, ACVA

  • Cardiorespiratory effects of anesthetic drugs; Hypotension during anesthesia and sympathomimetics; Equine field anesthetic techniques; Local anesthetic techniques

Dr. Kelsey Spence: Assistant Professor

  • Interrelationship between infectious diseases and society; Bidirectional influence of attitudes and behaviours on disease dynamics

Dr. Donald Trout: Associate Professor; Diplomate, ACVS

  • Diagnostic/therapeutic local analgesia, radiography and scintigraphy relating to equine lameness

Dr. Alex Valverde: Professor; Diplomate, ACVAA

  • Potency of inhalation anesthetics; Anesthesia/analgesia and locoregional techniques; Cardiorespiratory effects of anesthetic drugs and sympathomimetics; Equine recovery from anesthesia



Dr. John Barta: Professor

  • Interactions between parasites of the Phylum Apicomplexa (Plasmodium, Eimeria, Isospora, Toxoplasma gondii, Cryptosporidium and related organisms) and their vertebrate and invertebrate hosts at the historical, organismal, and molecular levels

Dr. Michele Guerin: Associate Professor

  • Poultry health management; food safety/zoonotic diseases/veterinary public health; poultry welfare; food quality; environmental issues related to poultry management

Dr. Shayan Sharif: Professor

  • Immune response to Marek's disease virus in chickens; Immunology of avian influenza virus infection in chickens; Interactions between commensal bacteria in the intestine and the chicken immune system

Dr. Leonardo Susta: Associate Professor; Diplomate, ACVP

  • Diseases and diagnostic pathology of poultry


Small Ruminants

Dr. Pawel Bartlewski: Associate Professor

  • Hormonal control of ovarian antral follicle development in domestic ruminants; Ultrasonographic imaging of the reproductive organs in animal species; Regulation and manipulation of sexual development in calves and lambs; ARTs in ruminants and companion animals (IVM/IVF/IVC, hormonal ovarian superstimulation, AI and MOET); Cryopreservation of gametes and embryos using nanotechnology products; Nutritional influences on reproductive processes in small ruminants and pigs; Development of farm animal models for amelioration of hormonal treatments in women

Dr. Cathy Bauman: Assistant Professor

  • Ruminant health management

Dr. Andrew Peregrine: Associate Professor; Diplomate, EVCP; Diplomate, ACVM

  • Epidemiology and impact of parasitic infections; Development of parasite control programs that minimize the rate of development of drug resistance



Dr. Bob Friendship: Professor

  • Sow reproduction and longevity; On-farm control of Salmonella, prevalence of MRSA and influenza and Streptococcus suis and other zoonotic pathogens on pig farms; Antimicrobial resistance; Interaction of enteric diseases and nutritional factors; Surveillance and epidemiology of swine diseases

Dr. Terri O'Sullivan: Associate Professor

  • Swine health management

Dr. Zvonimir Poljak: Associate Professor

  • Spread of infectious diseases in swine; Mapping the occurrence of PRRS virus genotypes in Ontario; Assessing the frequency of direct and indirect contacts in Ontario swine herds and other aspects of pig movement; Within-area spread of influenza; Within-herd spread of respiratory pathogens in growing pigs

Dr. Nicole Ricker: Assistant Professor

  • Application of big data analysis techniques to disease informatics; Integration of microbial sequencing data into precision agriculture applications; Comparative genomics and metagenomics; Antimicrobial resistance; Role of microbiome in disease progression/immune development; Plasmid dynamics; One Health approaches to AMR and antibiotic alternatives; Shotgun metagenomics for analysis of functional changes in the swine microbiome



Dr. Katie Clow: Assistant Professor

  • Vector-borne zoonoses; Disease ecology; Surveillance; Knowledge translation; EcoHealth; One Health

Dr. Claire Jardine: Associate Professor

  • Wildlife and ecosystem health; Ecology of diseases in wild animal populations; Rodent and vector borne zoonotic diseases

Dr. Jane Parmley: Associate Professor

  • One Health; Ecohealth; Surveillance; Antimicrobial Resistance; Wildlife Health; Zoonoses

Dr. Mauricio Seguel: Assistant Professor

  • Ecology, immunology and pathology of wildlife infectious diseases


Research Groups

 Dairy at Guelph

 Ontario Swine

See All Research Programs