Auburn University College of Veterinary Medicine

Frederic J. Hoerr, DVM, MS, PhD, Diplomate ACVP, ACPV

Dr. Hoerr received his DVM, MS, and PhD degrees from Purdue University, with postgraduate residency and research training in avian diseases and veterinary pathology. He completed the Master’s Degree under the direction of Dr. R. W. Winterfield, and his Ph. D. degree under the direction of Dr. W. W. Carlton. He joined the Alabama Department of Agriculture and Industries in 1980, to develop a poultry disease diagnostic program for the C. S. Roberts Veterinary Diagnostic Laboratory in Auburn. He was appointed Laboratory Director in 1987, and continues in that capacity. Dr. Hoerr provides poultry diagnostic services with the state laboratory, including necropsy, histopathology, and coordinating case investigations. He oversaw the design and construction of the Thompson Bishop Sparks State Diagnostic Laboratory in Auburn, a Biosafety Level II/III facility that opened in May 2006. Dr. Hoerr holds a joint appointment as Professor in the College of Veterinary Medicine, Department of Pathobiology. He is the course coordinator and teaches avian diseases in VMED 5330, Multispecies Medicine in the 3rd year professional core curriculum. A member of the Auburn University Graduate Faculty, Dr. Hoerr has participated on 9 MS and 10 PhD committees. He collaborates in applied research of poultry diseases, and in 2005, received the Norden Distinguished Research Award. Dr. Hoerr served as President of the American College of Poultry Veterinarians in 2004, and is currently President-Elect of the American Association of Avian Pathologists.

334-844-7207
hoerrfj@auburn.edu

Research Interests

My research interests stem directly from current issues in poultry health in Alabama, including those presented to the state diagnostic laboratories, and to colleagues at Auburn University. Working with researchers in veterinary medicine and poultry science, we have investigated cryptosporidiosis, aflatoxicosis, infectious bronchitis, infectious bursal disease, chicken infectious anemia, pigeon paramyxovirus, immunogenetics of broilers, skeletal diseases, coliform cellulitis, diagnosis and pathogenesis of mycoplasmosis, viral enteric diseases, salmonellosis, avian influenza, conditions identified at processing, poultry pharmacology, and diseases of raptors.

Selected Publications

van Santen, VL, H Toro, and FJ Hoerr. Biological characterization of chicken anemia virus with novel VP1 polymorphism after regeneration from an infectious clone produced from clinical specimen by PCR. Avian Diseases; preprint DOI: 10.1637/7669-06, 2007.

Toro, H, VL van Santen, L Li, SB Lockaby, E van Santen, and FJ Hoerr. Epidemiological and experimental evidence for immunodeficiency affecting avian infectious bronchitis. Avian Pathology 35 (6):1-10, 2006.

Toro, H, S Ewald, and FJ Hoerr. Serological evidence of chicken infectious anemia virus in the U. S. at least since 1959. Avian Diseases 50:124-126, 2006.

El-Kholy H, Kemppainen B, Ravis W, Hoerr F. Pharmacokinetics of levamisole in broiler breeder chickens. J Vet Pharmacol Ther 29(1):49-53, 2006.

KS Joiner*, SJ Ewald, FJ Hoerr, VL van Santen, and H Toro. Oral infection with chicken anemia virus in 4-week broiler breeders: Lack of effect of major histocompatibility B complex genotype. Avian Diseases, 49:482-487, 2005

Toro, H, FJ Hoerr, K Farmer, CC Dykstra, SR Roberts, and M Perdue. Pigeon paramyxovirus: association with common avian pathogens in chickens and serology survey in wild birds. Avian Diseases 49:92-98, 2005

Toro, H, SB Price, S KcKee, FJ Hoerr, J Krehling, M Perdue and L Bauermeister. Use of baceriophages in combination with competitive exclusion to reduce Salmonella from infected chickens. Avian Diseases 49:118-124, 2005.

*Joiner, KS, FJ Hoerr, E van Santen, and SJ Ewald. The avian major histocompatibility complex influences bacterial skeletal disease in broiler breeder chickens. Veterinary Pathology, 42:275-281, 2005

Hoerr, FJ. Poultry Mycotoxicoses. In: The Merck Veterinary Manual, 9th edition. Kahn, C. and S. Line, eds. Merck and Co., Inc. pp. 2246-48. 2005.

van Santen, V., F.J. Hoerr, K. Joiner, C. Murray, N. Petrenko, and H. Toro (2004). Pathogenesis of Chicken Anemia Virus: comparison of the oral and the intramuscular routes of infection. Avian Diseases 48:494-504, 2004.

Brookes, JE, AC Rainer, RL Parr, P Woolcock, F Hoerr and EW Collisson. Comparisons of envelope through 5B sequences of infectious bronchitis coronaviruses indicates recombination occurs in the envelope and membrane genes. Virus Research 100(2):191-8, 2004.

Hoerr, FJ. Mycotoxicoses. In: Saif, YM, et al. eds. Diseases of Poultry, 11th edition. Iowa State University Press. Ames. Ch. 33, pp. 1103-1132. 2003.

Hudson, JC, FJ Hoerr, SH Parker, and SJ Ewald. Quantitative measures of disease in broiler breeder chicks of different major histocompatibility complex genotypes after challenge with infectious bursal disease virus. Avian Dis 46:581-594, 2002.

Johnson, LC, F. F. Bilgili, FJ Hoerr, BL McMurtrey, and RA Norton. The effects of early exposure of cellulitis-associated Escherichia coli in 1-day-old broiler chickens. Avian Pathology 30: 175-178, 2001.

van Santen, VL, L Li, FJ Hoerr, and LH Lauerman. Genetic characterization of chicken anemia virus from commercial broiler chickens in Alabama. Avian Diseases 45: 373-388, 2001.

Hagood, LT, TF Kelly, JC Wright, and FJ Hoerr. Evaluation of chicken infectious anemia virus and associated risk factors with disease and production losses in broilers. Avian Diseases 44:803-808, 2000.