1109 Experiment St. - Melton Building - Griffin, GA 30223 USA - PH (770) 228-7284 - FAX (770) 229-3216
Dr. Charles L. Hofacre
Professor

Center for Food Safety
Dept. Avian Medicine
University of Georgia
Athens, GA 30602-4875
Office Phone: (706) 542-5653

E-Mail: chofacre@uga.edu
Overview of Research Program
Clinical avian medicine
Foodborne pathogens associated with poultry
Antibiotic resistant bacteria
 
Recent Publications (2002 - present)
 

Bailey, J.S., A. Rolón, P.S. Holt, C.L. Hofacre, J.L. Wilson, D.E. Cosby, L.J. Richardson, and N.A. Cox. 2007. Humoral and mucosal-humoral immune response to a Salmonella vaccination program in broiler breeders.  Int. J. Poult. Sci. 6:172-181.

Glisson, J.R. and C.L. Hofacre. 2006. The future of veterinary medicine in poultry production.  J. Vet. Med. Education 33:492-495.

Hofacre, C.L., G.F. Mathis, S.H. Miller, and M.W. LaVorgna. 2007. Use of Bactracin and Roxarsone to reduce Salmonella Heidelberg shedding following a necrotic enteritis challenge model.  J. Appl. Poult. Res. 16:275-279.

Moscoso, H., J.J. Bruzual, H. Sellers, and C.L. Hofacre. 2007. FTA® liver impressions as DNA template for detecting and genotyping fowl adenovirus.  Avian Dis. 51:118-121.

Simjee, S., P.F. McDermott, D.G. White, C. Hofacre, R.D. Berghaus, P.J. Carter, L. Stewart, T. Liu, M. Maier, and J.J. Maurer. 2007. Antimicrobial susceptibility and distribution of antimicrobial-resistance genes among Enterococcus and coagulase-negative Staphylococcus isolates recovered from poultry litter.  Avian Dis. 51:884-892.

Smith, J.L., D.J.V. Drum, Y. Dai, J.M. Kim, S. Sanchez, J.J. Maurer, C.L. Hofacre, and M.D. Lee. 2007. Impact of antimicrobial usage on antimicrobial resistance in commensal Escherichia coli strains colonizing broiler chickens.  Appl. Environ. Microbiol. 73:1404-1414.

Young Stamey, S., O. Olusanya, K. Jones, T. Liu, K. Liljebjelke, and C. Hofacre. 2007. Salmonella reductions in broilers from breeders vaccinated with both live and killed Salmonella vaccines.  Appl. Poult. Res. 16:521-528.

Idris, U., J.R. Lu, M. Maier, S. Sanchez, C.L. Hofacre, B.G. Harmon, J.J. Maurer, and M.D. Lee. 2006. Dissemination of fluoroquinolone-resistant Campylobacter spp. within an integrated commercial poultry production system.  Appl. Environ. Microbiol. 72:3441-3447.

Jackson, C.R., A.L. Debnam, G.E. Avellaneda, J.B. Barrett, and C.L. Hofacre. 2006. Effect of subtherapeutic antimicrobials on genetic diversity of Enterococcus faecium from chickens.  Avian Dis. 50:115-119.

Lu, J., C.L. Hofacre, and M.D. Lee. 2006. Emerging technologies in microbial ecology aid in understanding the effect of monensin in the diets of broilers in regard to the complex disease necrotic enteritis.  J. Appl. Poultry Res. 15:145-153.

Moscoso, H., I. Alvarado, and C.L. Hofacre. 2006. Molecular analysis of infectious bursal disease virus from bursal tissues collected on FTA® filter paper. Avian Dis. 50:391-396.

Singer, R.S. and C.L. Hofacre. 2006. Potential impacts of antibiotic use in poultry production.  Avian Dis. 50:161-172.

Cox, N. A., C. L. Hofacre, J. S. Bailey, R. J. Buhr, J. L. Wilson, K. L. Hiett, L. J. Richardson, M. T. Musgrove, D. E. Cosby, J. D. Tankson, Y. L. Vizzier, P. F. Cray, L. E. Vaughn, P. S. Holt, and D. V. Bourassa. 2005. Presence of Campylobacter jejuni in various organs one hour, one day, and one week following oral or intracloacal inoculations of broiler chicks.  Avian Dis. 49:155-158.

Cox, N. A., C. L. Hofacre, R. J. Buhr, J. L. Wilson, J. S. Bailey, L. J. Richardson, D. E. Cosby, M. T. Musgrove, K. L. Hiett, and S. M. Russell. 2005. Attempts to isolate naturally occurring Campylobacter, Salmonella, and Clostridium perfringens from the ductus deferens, testes, and ceca of commercial broiler breeder roosters.  J. Appl. Poultry Res. 14:126-129.

Debnam, A. L., C. R. Jackson, G. E. Avellaneda, J. B. Barrett, and C. L. Hofacre. 2005. Effect of growth promotant usage on enterococci species on a poultry farm.  Avian Dis. 49:361-365.

Fairchild, A. S., J. L. Smith, U. Idris, J. Lu, S. Sanchez, L. B. Purvis, C. Hofacre, and M. D. Lee. 2005. Effects of orally administered tetracycline on the intestinal community structure of chickens and on tet determinant carriage by commensal bacteria and Campylobacter jejuni.  Appl. Environ. Microbiol. 71:5865-5872.

Liljebjelke, K. A., C. L. Hofacre, T. Liu, D. G. White, S. Ayers, S. Young, and J. J. Maurer. 2005. Vertical and horizontal transmission of Salmonella within integrated broiler production system. Foodborne Path. Dis. 2:90-102.

Moscoso, H., E. O. Raybon, S. G. Thayer, and C. L. Hofacre. 2005. Molecular detection and serotyping of infectious bronchitis virus from FTA filter paper. Avian Dis. 49:24-29.

Glisson, J. R., C. L. Hofacre, and G. F. Mathis. 2004. Comparative efficacy of enrofloxacin, oxytetracycline, and sulfadimetehoxine for the control of morbidity and mortality caused by Escherichia coli in broiler chickens.  Avian Dis. 48:656-660.

Mitchell, B. W., L. J. Richardson, J. L .Wilson, and C. L. Hofacre. 2004. Application of an electrostatic space charge system for dust, ammonia, and pathogen reduction in a broiler breeder house. Appl. Engr. Agric. 20:87-93.

Morales, C., M. D. Lee, C. Hofacre, and J. J. Maurer. 2004. Detection of a novel virulence gene and a Salmonella virulence homologue among Escherichia coli isolated from broiler chickens.  Foodborne Pathogens Dis. 1:160-165.

Moscoso, H., S. G. Thayer, C. L. Hofacre, and S. H. Kleven. 2004. Inactivation, storage, and PCR detection of mycoplasma on FTA filter paper.  Avian Dis. 48:841-850.

Nandi, S., J. J. Maurer, C. Hofacre, and A. O. Summers. 2004. Gram-positive bacteria are a major reservoir of Class 1 antibiotic resistance integrons in poultry litter.  Proc. Nat. Acad. Sci. USA 101:7118-7122.

Burns, K. E., R. Otalora, J. R. Glisson, and C. L. Hofacre. 2003. Cellulitis in Japanese quail (Coturnix coturnix japonica). Avian Dis. 47:211-214.

Hofacre, C. L., T. Beacon, S. Collett, and G. Mathis. 2003. Using competitive exclusion, mannan-oligosaccharide and other intestinal products to control necrotic enteritis. J. Appl. Poultry Res. 12:60-64.

Hong, Y., M. Berrang, T. Liu, C. Hofacre, S. Sanchez, L. Wang, and J. J. Maurer. 2003. Rapid detection of Campylobacter coli, C. jejuni and Salmonella enterica on poultry carcasses using PCR-enzyme-linked immunosorbent assay.  Appl. Environ. Microbiol. 69:3492-3499.

Hong, Y., T. R. Liu, C. Hofacre, M. Maier, D. G. White, S. Ayers, L. H. Wang, and J. J. Maurer. 2003. A restriction fragment length polymorphism-based polymerase chain reaction as an alternative to serotyping for identifying Salmonella serotypes. Avian Dis. 47:387-395.

Lu, J., U. Idris, B. Harmon, C. Hofacre, J. J. Maurer, and M. D. Lee. 2003. Diversity and succession of the intestinal bacterial community of the maturing broiler chicken.  Appl. Environ. Microbiol. 69:6816-6824.

Lu, J., S. Sanchez, C. Hofacre, J. J. Maurer, B. G. Harmon, and M. D. Lee. 2003. Evaluation of broiler litter with reference to the microbial composition as assessed by using 16S rRNA and functional gene markers.  Appl. Environ. Microbiol. 69:901-908.

White, D. G., S. Ayers, J. J. Maurer, S. G. Thayer, and C. Hofacre. 2003. Antimicrobial susceptibilities of Staphylococcus aureus isolated from commercial broilers in northeast Georgia.  Avian Dis. 47:203-210.

Liu, T. R., K. Liljebjelke, E. Bartlett, C. Hofacre, S. Sanchez, and J. J. Maurer. 2002. Application of nested polymerase chain reaction to detection of Salmonella in poultry environment. J. Food Protect. 65:1227-1232.

Richardson, L. J., B. W. Mitchell, J. L. Wilson, and C. L. Hofacre. 2003. Effect of an electrostatic space charge system on airborne dust and subsequent potential transmission of microorganisms to broiler breeder pullets by airborne dust. Avian Dis. 47:128-133.

Richardson, L. J., C. L. Hofacre, B. W. Mitchell, and J. L. Wilson. 2003. Effect of electrostatic space charge on reduction of airborne transmission of Salmonella and other bacteria in broiler breeders in production and their progeny. Avian Dis. 47:1352-1361.

Stanley, W. A., C. L. Hofacre, N. Ferguson, J. A. Smith, and M. Ruano. 2003. Evaluating the use of ultraviolet light as a method for improving hatching egg selection. J. Appl. Poultry Res. 12:237-241.

Burns, K. E., J. Ruiz, K. Opengart, C. L. Hofacre, T. P. Brown, and G. N. Rowland. 2002. Hypoglycemia spiking mortality syndrome in broilers with rickets and a subsequent investigation of feed restriction as a contributing factor. Avian Dis. 46:735-739.

Maurer, J.J., Hofacre, C.L., Wooley, R.E., Gibbs, P., and Froyman, R. 2002. Virulence factors associated with Escherichia coli present in a commercially produced competitive exclusion product. Avian Dis. 46:704-707.

Hazariwala, A., Sanders, Q., Hudson, C.R., Hofacre, C., Thayer, S.G., and Maurer, J.J. 2002. Distribution of staphylococcal enterotoxin genes among Staphylococcus aureus, isolates from poultry and humans with invasive staphylococcal disease. Avian Dis. 46:132-136.

Sanchez, S., C.L. Hofacre, M.D. Lee, J.J. Maurer, and M.P. Doyle. 2002. Animal sources of salmonellosis in humans. J. Am. Vet. Med. Assoc. 221:492-497.

Sander, J. E. , C. L. Hofacre, I. H. Cheng, and R. D. Wyatt. 2002. Investigation of resistance of bacteria from commercial poultry sources to commercial disinfectants. Avian Dis. 46:997-1000.