Ernest Hovingh, DVM, PhD

Program Areas

• Disease diagnostics
• Milking parlor management and milking equipment
• Mastitis and milk quality/safety
• Dairy lameness and hoof health
• Johnes Disease prevention and control
• On-farm epidemiology
• Animal welfare and well being

Memberships

• American Association of Extension Veterinarians
• American Association of Veterinary Laboratory Diagnosticians
• National Mastitis Council
• United States Animal Health Association

Professional Experience

2023-curent Clinical Professor; Director, Animal Diagnostic Laboratory; Extension & Field Investigation Veterinarian, Penn State University

2021-2023  Research Professor, Extension Veterinarian and Field Investigator, Department of Veterinary and Biomedical Science, Pennsylvania State University.

2017-2020  Associate Research Professor, Veterinary Extension and Field Investigation, Department of Veterinary and Biomedical Science, Pennsylvania State University.

2004-2017  Senior Research Associate, Veterinary Extension and Field Investigation, Department of Veterinary and Biomedical Science, Pennsylvania State University.

1999-2003  Assistant Professor of Ruminant Health/Veterinary Extension Specialist, Virginia-Maryland Regional College of Veterinary Medicine, Blacksburg, VA. 

1998  Lecturer, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE, Canada. 

1990-1992  Associate Veterinarian, Ontario, Canada.

Selected Publications

Barragan, A., J. Lakritz, M. Carman, S. Bas, E. Hovingh, G. Schuenemann. “Assessment of biomarkers of inflammation in the vaginal discharge of postpartum dairy cows diagnosed with clinical metritis.” (2019) J Dairy Science. 102(8):7469-7475.

Salaheen, S., S.W. Kim, J.S. Karns, E. Hovingh, B.J. Haley, J. A.S. Van Kessel. “Metagenomic analysis of the fecal microbiomes from Escherichia coli O157: H7-shedding and non-shedding cows on a single dairy farm. (2019) Food Control. 102:76-80.

Salaheen, S., H. Cao, J.L. Sonnier, S.W. Kim, L.P. Del Collo, E. Hovingh, J.S. Karns, B.J. Haley, J.A.S. Van Kessel. “Diversity of Extended-Spectrum Cephalosporin-Resistant Escherichia  coli in Feces from Calves and Cows on Pennsylvania Dairy Farms.” (2019) Foodborne Pathog and Dis. 16(5):1-3.

Salaheen, S., S.W. Kim, H. Cao, D.R. Wolfgang, E. Hovingh, J.S. Karns, B.J. Haley and J.A.S. Van Kessel. "Antimicrobial resistance among Escherichia coli isolated from veal calf operations in Pennsylvania." (2019) Foodborne Pathog and Dis. 16(1):74-80.

Cao, H., A.K. Pradhan, J. S. Karns, E. Hovingh, D.R. Wolfgang, B.T. Vinyard, S.W. Kim, S. Salaheen, B.J. Haley, and J.A.S. Van Kessel. “Age-Associated Distribution of Antimicrobial-Resistant Salmonella enterica and Escherichia coli Isolated from Dairy Herds in Pennsylvania, 2013–2015.” (2019) Foodborne Pathog and Dis. 16(1):60-67.

Springer, H.R., T.N. Denagamage, G.D. Fenton, B.J. Haley, J.A.S. VanKessel and E.P. Hovingh. "Antimicrobial resistance in fecal Escherichia coli and Salmonella enterica from dairy calves: a systematic review." (2019) Foodborne Pathog and Dis. 16(1):23-34.

Byukusenge, M., R. Nissly, S.M. Kasibhatla, L. Li, R. Russell, H. Springer, R. Barry, R. Van Saun, D. Wolfgang, E. Hovingh, U. Kulkarni-Kale, and S. V. Kuchipudi. “Complete Genome Sequences of Four Bovine Coronavirus Isolates from Pennsylvania.” (2018) Microbiology Resource Announcements. 6(22).

Cao, H., A.K. Pradhan, J.S. Karns, D.R. Wolfgang, E. Hovingh, B. T. Vinyard and J.A.S. Van Kessel.“Prevalence and risk factors for antimicrobial resistance on U.S. dairy operations.” (2017) J. Animal Science, Vol. 95, Supp 4: 131-132.

Beaver, A., R.W.Sweeney, E.Hovingh, D.R.Wolfgang., Y.T.Gröhn, Y.H.Schukken. “Longitudinal relationship between fecal culture, fecal quantitative PCR, and milk ELISA in Mycobacterium avium ssp. paratuberculosis-infected cows from low-prevalence dairy herds.” (2017) J Dairy Science, 100(9): 7507-7521.

Schewe, R.L., J. Kayitsinga, G.A. Contreras, C. Odom, W.A. Coats, P Durst, E.P. Hovingh, R.O. Martinez, R. Mobley, S. Moore, and R.J. Erskine.  "Herd Management and Social Variables Associated with Bulk Tank Somatic Cell Counts in Dairy Herds in the Eastern United States." (2015).  J. Dairy Science, 98(11): 7650-7665.

Haley, B.J., M. Allard, E. Brown, E. Hovingh, J.S. Karns, and J.S.van Kessel. "Molecular Detection of the Index Case of a Subclinical Salmonella Kentucky Epidemic on a Dairy Farm." (2015). Epidemiology and Infection, 143(04): 682-686.

Lu, Z., Y.T. Gröhn, R.L. Smith, J.S. Karns, E. Hovingh, and Y.H. Schukken. "Stochastic Modeling of Imperfect Salmonella Vaccines in an Adult Dairy Herd." (2014). Bulletin of Mathematical Biology. 76(3):541-565.

Tewari, D., E. Hovingh, R. Linscott, E. Martel, J. Lawrence, D. Wolfgang, and D. Griswold. "Mycobacterium avium subsp. paratuberculosis Antibody Response, Fecal Shedding, and Antibody Cross-Reactivity to Mycobacterium bovis in M. avium subsp. paratuberculosis-Infected Cattle Herds Vaccinated against Johne's Disease."  (2014). Clin Vaccine Immunol., 21(5): 698-703.

Van Kessel, J.S., J.S. Karns, D.R. Wolfgang, and E. Hovingh. "Regional Distribution of Two Dairy-Associated Salmonella enterica Serotypes."  (2013). Foodborne Pathogens and Disease, 10(5): 448-452.

Van Kessel, J. S., J. S. Karns, D. R. Wolfgang, E. Hovingh, and Y. H. Schukken.  (2012). Dynamics of Salmonella serotype shifts in an endemically infected dairy herd. Foodborne Pathogens and Disease, 9:319-324.

Pradhan, A.K., R.M. Mitchell, A.J. Kramer, M.J. Zurakowski, T.L. Fyock, R.H. Whitlock, J.M. Smith, E. Hovingh, J.S. Van Kessel, J.S. Karns, and Y.H. Schukken. "Molecular Epidemiology of Mycobacterium avium subsp. paratuberculosis in a Longitudinal Study of Three Dairy Herds." (2011). J. Clin Microbiol., 49(3):893-901.