Ruediger Hauck

Associate Professor

Poultry Science

(334) 844-4152 


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302J Poultry Science Building
Auburn Univ, AL 36849



  • 2013 Habilitation/Poultry Diseases, Freie Universität Berlin
  • 2004 Ph.D., Veterinary Medicine, Freie Universität Berlin
  • 2002 DVM, Freie Universität Berlin


  • 2023-present: Associate Professor at Auburn University with a shared appointment at the Department of Pathobiology and the Department of Poultry Science
  • 2017-2023: Assistant Professor at Auburn University with a shared appointment at the Department of Pathobiology and the Department of Poultry Science
  • 2015-2017: Postdoctoral scholar at the School of Veterinary Medicine, University of California, Davis
  • 2013-2015: Member of the team “Antimicrobial Resistance” at the Federal Office for Consumer Protection and Food Safety
  • 2008-2013: Postdoctoral scholar at the Institute of Poultry Diseases, Department of Veterinary Medicine, Freie Universität Berlin
  • 2007-2008: Postdoctoral scholar at the Poultry Diagnostic and Research Center, University of Georgia
  • 2006-2007: Postdoctoral scholar at the Department of Poultry Science, University of Georgia


  • 2022-present: Chair of the Credentials Committee of the European College of Poultry Veterinary Science
  • 2022-present: Chair-elect of the Enteric Diseases Committee of American Association of Avian Pathologists
  • 2019-2022: Member of the Credentials Committee of the European College of Poultry Veterinary Science
  • 2022 -present: Member of the Poultry Science Association
  • 2017-present: Member of the American Veterinary Medical Association
  • 2014-present: Member of the Reviewers Board of Avian Diseases
  • 2011-present: Diplomate of the European College of Poultry Veterinary Science
  • 2008-present: Member of the American Association of Avian Pathologists
  • 2004-present: Member of the World Veterinary Poultry Association
  • 2004-2017: Member of the German Veterinary Society



I am interested in infectious diseases of poultry. I focus on the intestinal health of poultry, especially coccidian and other parasites as well as Clostridia. My research aims at understanding the molecular basis of their pathogenicity and using this knowledge in practical ways to prevent disease.



  • Barua S, BaileyM., Zhong K, Iduu Nneka, Dormitorio T, Macklin KS, Bourassa D, Price S, Hauck R, Krehling JT, Kitchens S, Kyriakis C, Buhr RH, Wang C (2023): Research Note: Role of darkling beetles (Alphitobius diaperinus) and litter in spreading and maintaining SalmonellaEnteritidis and Campylobacter jejuni in chicken flocks. Poultry Science: accepted.
  • Alvarez Narvaez S, Harrell TL, Oluwayinka O, Sellers HS, Khalid Z, Hauck R, Chowdhury EU, Conrad SJ (2023): Optimizing the conditions for whole genome sequencing of avian reoviruses. Viruses: accepted.
  • Terra MT, Macklin KS, Burleson M, Jeon A, Beckmann JF, Hauck, R (2023): Mapping the poultry insectome in and around broiler breeder pullet farms identifies new potential Dipteran vectors of Histomonas meleagridis. Parasites & Vectors: accepted.
  • Pietruska A, Bortoluzzi C, Hauck R (2023): A meta-analysis of the effect of Eimeria and/or Clostridium perfringens infection on the microbiota of broiler chickens. Poultry Science: accepted.
  • Munoz LR, Paul MA, Bailey MA, Krehling JT, Hauck R, Pacheco WJ, Chasteen KS, Talorico AA, Escobar C, Pietruska A, Bourassa DV, Macklin KS (2023): Effect of yeast cell wall on performance, pathogen colonization, innate immune response, histomorphology, and slaughter characteristics of broiler chickens inoculated with Campylobacter jejuni at day 21. Poultry Science: accepted.
  • Riggs MR, Hauck R, Baker-Cook BI, Osborne RC, Pal AJ, Bethonico Terra MT, Sims G, Urruita A, Orellana-Galindo L, Reina M, Bourassa DV (2022): Meat quality of broiler chickens processed using electrical and controlled atmosphere stunning systems. Poultry Science 102: 102422.
  • Carrisosa M, Terra-Long MT, Cline J, Macklin KS, Dormitorio T, Wang C, Hauck R (2022): Multi-locus sequence typing of Eimeria maxima in commercial broiler flocks. Avian Dis 66: 389-395.
  • Hauck R, Eckert J, Hunter C (2022): Meta-analysis of the use of Eimeria lesion scores and oocyst counts in floor pen studies. Avian Dis 66: 381-388.
  • Terra MTB, Pietruska A, McCrea BA, Hauck R (2022): Infection with Ascaridia galli does not significantly alter intestinal microbiota and is cleared after changes in the expression of cytokines. Avian Dis 66: 186-192.
  • Nguyen V, Mete A, Armien A, da Silva AP, Montine P, Corsiglia C, Sadagopa Ramanujam VM, Anderson KE, Hauck R, Gallardo RA (2022): Porphyrin accumulation and biliary lithiasis causing diffusely black livers in broiler chickens. Avian Dis 66: 225-229.
  • Smith R, Hauck R, Macklin KS, Price S, Dormitorio T, Wang C (2022): A review of the lesser mealworm beetle (Alphitobius diaperinus) as a reservoir for zoonotic bacterial pathogens and antimicrobial resistance. World’s Poultry Science Journal 78: 197-214
  • Hauck R, Pacheco WJ (2021): Detection of coccidia oocysts in litter and feces of broilers in a floor pen trial. Journal of Parasitology 107: 878-881.
  • Pietruska A, Hauck R, McCrea BA, Stewart S (2021): Analysis of information for backyard flock owners provided by extension websites. Avian Diseases 65: 540–545.
  • Beckmann JF, Dormitorio T, Oladipupo SO, Bethonico Terra MT, Lawrence K, Macklin KS, Hauck R (2021): Heterakis gallinarum and Histomonas meleagridis DNA persists in chicken houses years after depopulation. Veterinary Parasitology 2021 Oct; 298:109536.
  • da Silva AP, Hauck R, Nociti SRC, Kern C, Shivaprasad HL, Zhou H, Gallardo RA (2021): Molecular biology and pathological process of an infectious bronchitis virus with enteric tropism in commercial broilers. Viruses 13: 1477.
  • Carrisosa M, Jin S, McCrea BA, Macklin KS, Dormitorio T, Hauck R (2021): Prevalence of select intestinal parasites in Alabama backyard poultry flocks. Animals: 11: 939.
  • Bethonico Terra MT, Pacheco WJ, Harrison M, McCrea BA, Hauck R (2021): A survey of coccidia and nematodes in pastured poultry in the state of Georgia. Avian Dis 65: 250-256.
  • da Silva AP, Stoute S, Hauck R, Shivaprasad HL, Jerry C (2021): A Case Report of Avian Malaria (Plasmodium spp.) in a Small Flock of Pigeons (Columbia livia). Avian Dis: accepted.
  • Eckert J, Carrisosa M, Hauck R (2021): Network meta-analysis comparing the effectiveness of anticoccidial drugs and anticoccidial vaccination in broiler chickens. Vet Parasitol 2021 Mar; 291:109387.
  • Munoz Romero L, Pacheco WJ, Hauck R, Macklin KS (2021): Evaluation of commercially manufactured animal feeds to determine presence of Salmonella, Escherichia coli and Clostridium perfringens. J Appl Poult Sci 30: 100142.
  • Ovi FK, Morey A, Hauck R, Grueber J, Pacheco WJ (2021): Effects of pre-pelleting whole corn inclusion on feed particle size, pellet quality, growth performance, carcass yield, and digestive organ development of broilers between 14 to 42 day of age. J Appl Poult Sci 30: 100113.
  • Chowdhury E, Roberts J, Walz H, Hauck R, Morey A, Morgan S, Joiner K, Cattley R, Sengupta S, Wilson F, Hoerr F (2021): Hepatic peri-sinusoidal myofibroblast proliferation and systemic inflammatory response precedes sep/tox hepatitis in broilers. Avian Dis 65:10-17.
  • Rodning S, Hauck R, Walz P H, Macklin K S, Norton R A (2020): The role of the veterinary profession in the COVID-19 pandemic. Journal Am Vet Ass 256: 1318-1319. [non-peer reviewed letter to the editor]
  • Hauck R, Stoute S, Sentíes-Cué C G, Guy J S, Shivaprasad H L (2020): A Retrospective Study of Transmissible Viral Proventriculitis in Broiler Chickens in California: 2000-2018. Avian Diseases 64: 525-531.
  • Hauck R, Mays J, Dunn J, Shivaprasad H L (2020): Two Cases of Marek’s Disease in Backyard Turkeys. Avian Diseases 64: 347-351.
  • Hamilton M, Ma X, McCrea B A, Carrisosa M, Macklin K S, Zhang C, Wang X, Hauck R (2020): Influence of Eimeria spp. infection on chicken jejunal microbiota and the efficacy of two alternative products against the infection. Avian Dis 64: 123-129.
  • Hauck R, Cray C, França M (2019): Spotlight on avian pathology: aspergillosis. Avian Pathol 49: 115-118.
  • Hauck R, Carrisosa M, McCrea B A, Dormitorio T, Macklin K S (2019): Evaluation of next generation amplicon sequencing to identify Eimeria spp. of chickens. Avian Dis: 63: 577-583.
  • Egaña-Labrin S, Hauck R, Figueroa A, Stoute S, Shivaprasad H L, Crispo M, Corsiglia C, Zhou H, Kern C, Crossley B, Gallardo R A (2019): Genotypic characterization of emerging avian reovirus molecular variants in California. Sci Rep 9: 9351.
  • Crispo M, Stoute S, Hauck R, Egaña-Labrin S, Sentíes-Cué C G, Cooper G L, Bickford A A, Corsiglia C, Shivaprasad H L, Crossley B, Gallardo R A (2019): Partial Molecular Characterization and Pathogenicity Study of an Avian Reovirus Causing Tenosynovitis in Commercial Broilers. Avian Dis 63: 452-460.
  • Hauck R, Stoute S, Savaris T, Shivaprasad H L (2019): Typhlohepatitis and amyloidosis associated with high mortality in Chukar partridges (Alectoris chukar). Avian Dis 63: 446-451.
  • da Silva A P, Hauck R, Kern C, Wang Y, Zhou H, Gallardo RA (2019): Effects of Chicken MHC Haplotype on Resistance to Distantly-Related Infectious Bronchitis Viruses. Avian Dis 63: 310-317.
  • Hauck R, Stoute S, Chin R P, Sentíes-Cué C G, Shivaprasad H L (2018): Retrospective study of histomoniasis (blackhead) in California turkey flocks, 2000-2014. Avian Dis 62: 94-100.
  • Derksen T, Lampron R, Hauck R, Pitesky M, Gallardo R A (2018): Biosecurity assessment and seroprevalence of respiratory diseases in backyard poultry flocks located close and far from commercial premises. Avian Dis 62: 1-5.
  • Hauck R (2017): Interactions between parasites and the bacterial microbiota of chickens. Avian Dis 61: 428-436.
  • Da Silva A P, Hauck R, Zhou H, Gallardo R A (2017): Understanding immune resistance to Infectious Bronchitis using major histocompatibility complex chicken lines. Avian Dis 61: 358-365.
  • Figueroa A, Hauck R, Saldias-Rodriguez J, Gallardo RA (2017): Combination of Quaternary ammonia and glutaraldehyde as a disinfectant against enveloped and non-enveloped viruses. J Appl Poult Sci 26: 491–497.
  • Hauck R, Sentíes-Cué G, Wang Y, Kern C, Shivaprasad H L, Zhou H, Gallardo R A (2017): Evolution of Avian Encephalomyelitis Virus during embryo-adaptation. Vet Microbiol 204: 1-7.
  • Abdelnabi A, Hauck R, Corbeil L B, Gallardo R A (2017): The effect of diatomaceous earth in live attenuated infectious bronchitis vaccine, immune responses and protection against challenge. Poult Sci 96: 2623-2629.
  • Hauck R, Crossley B, Rejmanek D, Zhou H, Gallardo R A (2017): Persistence of high and low pathogenic avian influenza viruses in footbaths and poultry manure. Avian Dis 61: 64-69.
  • Abdelnabi A, Hauck R, Davis A, Hildebrand M, Corbeil L B, Gallardo R A (2017): Diatoms and diatomaceous earth as novel poultry vaccine adjuvants. Poult Sci 96: 288-294.
  • Yugo D M, Hauck R, Shivaprasad H L, Meng X-J (2016): Hepatitis virus infections in poultry. Avian Dis 60: 576-588.
  • Hauck R, Gallardo R A, Woolcock P, Shivaprasad H L (2016): A coronavirus associated with runting stunting syndrome in broiler chickens. Avian Dis 60: 528–534.
  • Gallardo R A, Aleuy O A, Pitesky M, Sentíes-Cué G, Abdelnabi A, Woolcock P, Hauck R, Toro H (2016): Variability assessment of California infectious bronchitis virus variants. Avian Dis 60: 424 – 429.
  • Voget M, Lorenz D, Lieber-Tenorio E, Hauck R, Meyer M, Cieslicki M (2015): Is transmission electron microscopy (TEM) a promising approach for qualitative and quantitative investigations of polymyxin B and miconazole interactions with cellular and subcellular structures of Staphylococcus pseudintermedius, Escherichia coli, Pseudomonas aeruginosa and Malassezia pachydermatis?. Vet Microbiol 181: 261–70.
  • Zischka M, Künne C T, Blom J, Wobser D, Sakιnç T, Schmidt-Hohagen K, Dabrowski P W, Nitsche A, Hübner J, Hain T, Chakraborty T, Linke B, Goesmann A, Voget S, Daniel R, Schomburg D, Hauck R, Hafez H M, Tielen P, Jahn D, Solheim M, Sadowy E, Larsen J, Jensen L B, Ruiz-Garbajosa P, Pérez D Q, Mikalsen T, Bender J, Steglich M, Nübel U, Witte W, Werner G (2015): Comprehensive molecular, genomic and phenotypic analysis of a major clone of Enterococcus faecalis MLST ST40. BMC Genomics 1: 175.
  • Wallmann J, Hauck R, Schwarz C, Klee S, Kaspar H, Heberer T (2015): Antibiotika: Gesetzgebung und Datenerfassung in Deutschland [Antibiotics: legislation and collection of data in Germany]. J Verbrauch Lebensm: DOI 10.1007/s00003-015-0954-8. (not peer-reviewed)
  • Noiva R, Guy J S, Hauck R, Shivaprasad H L (2015): Runting stunting syndrome associated with transmissible viral proventriculitis in broiler chickens. Avian Dis 59: 384-387.
  • Hauck R, Chin R P, Shivaprasad H L (2015): Retrospective study on the isolation of Ornithobacterium rhinotracheale from chickens and turkeys in Central California: 294 cases (2000 – 2012). Avian Dis 59: 130-137.
  • Popp C, Hauck R, Vahlenkamp T W, Lüschow D, Kershaw O, Hoferer M, Hafez H M (2014): Liver pathology associated with increased mortality in turkey breeder and meat turkey flocks. Avian Dis 58: 474-481.
  • Lotfi A, Hauck R, Olias P, Hafez H M (2014): Pathogenesis of histomonosis in experimentally infected specific pathogen free (SPF) layer type chickens and SPF meat type chickens. Avian Dis 58: 427-432.
  • Hauck R, Wallmann J, Heberer T (2014): Antibakterielle Resistenzen in Deutschland: Lage, Ursachen und Gegenmaßnahmen [Antibacterial resistances in Germany: situation, causes and counter measures]. J Verbrauch Lebensm 9: 71-79. (not peer-reviewed)
  • Hauck R, Römer A, Reimer I, Bender A, Haas C, Heberer T, Wallmann J (2014): Analysis of the distribution of veterinary antimicrobial products to veterinarians in Germany in 2011 and 2012. Berl Münch Tierärztl Wschr 127: 359-365.
  • Hauck R, Chin R P, Sentíes-Cué G, Charlton B, Shivaprasad H L (2014): Retrospective study of Turkey Viral Hepatitis in California turkey flocks, 2000-2012. Avian Dis 58: 205-210.
  • Taghavian O, Spiegel H, Hauck R, Hafez H M, Fischer R, Schillberg S (2013): Protective Oral Vaccination against Infectious bursal disease virus Using the Major Viral Antigenic Protein VP2 Produced in Pichia pastoris. PloS One 8: e83210.
  • Hauck R, Hafez H M (2013): Experimental infections with the protozoan parasite Histomonas meleagridis: a review. Parasitol Res 112: 19-34.
  • Schonewille E, Nesse L L, Hauck R, Windhorst D, Hafez H M, Vestby L K (2012): Biofilm building capacity of Salmonella enterica strains from the poultry farm environment. FEMS Immunol Med Microbiol 65: 360–365.
  • Popp C, Hauck R, Gad W, Hafez H M (2012): Type C botulism in a commercial turkey farm: A case report. Avian Dis 56: 760-763.
  • Popp C, Hauck R, Blazey B, Hänel A, Hafez H M (2012): An unusual outbreak of histomonosis in a commercial turkey flock. Berl Münch Tierärztl Wschr 125: 153–158.
  • Numee S, Hauck R, Hafez H M (2012): Influence of different storage media, temperatures and time duration on susceptibility of Ornithobacterium rhinotracheale. Pak Vet J 32: 438–442.
  • Numee S, Hauck R, Hafez H M (2012): Detection and typing of Ornithobacterium rhinotracheale (ORT) from German poultry flocks. Avian Dis 56: 654-658.
  • Hauck R, Hafez H M (2012): Pigeons are not susceptible to intracloacal infection with Histomonas meleagridis. Pak Vet 32: 589-592.
  • Hauck R, Hafez H M (2012): Description of Eimeria pavonina (Coccidia) of Peafowl in Germany. Avian Dis 56: 238–242.
  • Gad W, Hauck R, Krueger M, Hafez H M (2012): In vitro determination of antibiotic sensitivities of Clostridium perfringens isolates from layer flocks in Germany. Arch Geflugelkd 76: 234-238
  • Popp C, Hauck R, Balczulat S, Hafez H M (2011): Recurring histomonosis on an organic farm. Avian Dis 55: 328–330.
  • Gad W, Hauck R, Krueger M, Hafez H M (2011): Prevalence of Clostridium perfringens in commercial turkey and layer flocks. Arch Geflugelkd 75: 74–79.
  • Gad W, Hauck R, Krueger M, Hafez H M (2011): Determination of antibiotic sensitivities of Clostridium perfringens isolates from commercial turkeys in Germany in vitro. Arch Geflugelkd 75: 80–83.
  • Aka J, Hauck R, Blankenstein P, Balczulat S, Hafez H M (2011): Wiederauftreten von Histomonose auf einer Putenelterntierfarm [Reoccurrence of histomonosis in turkey breeder farm]. Berl Münch Tierärztl Wschr 124: 2–7.
  • Olias P, Hauck R, Windhaus H, van der Grinten E, Gruber A D, Hafez H M (2010): Articular aspergillosis of hip joints in turkeys. Avian Dis 54: 1098–1101.
  • Hauck R, Lotfi A, Hafez H M (2010): Factors influencing the activity of tiamulin against Histomonas meleagridis in vitro. Avian Diseases 54: 936–938.
  • Hauck R, Hafez H M (2010): Systematic position of Histomonas meleagridis based on four protein genes. J Parasitol 96: 396–400.
  • Hauck R, Fuller A L, Greif G, McDougald L R (2010): Evaluation of nifurtimox for potential use in control of histomoniasis in turkeys. Avian Dis 54: 28–32.
  • Hauck R, Balczulat S, Hafez H M (2010): Detection of DNA of Histomonas meleagridis and Tetratrichomonas gallinarum in German poultry flocks between 2004 and 2008. Avian Dis 54: 1021–1025.
  • Hauck R, Armstrong P L, McDougald L R (2010): Histomonas meleagridis (Protozoa: Trichomonadidae): Analysis of growth requirements in vitro. J Parasitol 96: 1–7.
  • Hafez H M, Hauck R, Gad W, De Gussem K, Lotfi A (2010): Pilot study on the efficacy of paromomycin as a histomonostatic feed additive in turkey poults experimentally infected with Histomonas meleagridis. Arch Anim Nutr 64: 77–84.
  • Dlugolenski D, Hauck R, Hogan R J, Michel F, Mundt E (2010): Production of H5-Specific Monoclonal Antibodies and the Development of a Competitive Enzyme-Linked Immunosorbent Assay for Detection of H5 Antibodies in Multiple Species. Avian Dis 54: 644–649.
  • Lierz M, Hafez H M, Honkavuori K S, Gruber A D, Olias P, Abdelwhab E M, Kohls A, Lipkin W I, Briese T, Hauck R (2009): Anatomical distribution of avian bornavirus in parrots, its occurrence in clinically healthy birds and ABV-antibody detection. Avian Pathol 38: 491–496.
  • Hauck R, Prusas C, Hafez H M, Lüschow D (2009): Serologic response against fowl poxvirus and reticuloendotheliosis virus after experimental and natural infections of chickens with fowl poxvirus. Avian Dis 53: 205–210.
  • Hauck R, Prusas C, Hafez H M, Lüschow D (2009): Quantitative PCR as a tool to determine the reticuloendotheliosis virus-proviral load of fowl poxvirus. Avian Dis 53: 211–215.
  • Hauck R, Hafez H M (2009): Partial sequence of the beta-tubulin of Histomonas meleagridis and the activity of benzimidazoles against H. meleagridis in vitro. Parasitol Res 104: 1183–1189.
  • Hauck R, Hafez H M (2007): Effect of coated plant extracts on Histomonas meleagridis and growth of bacteria in vitro. Avian Dis 51: 880–883.
  • Hauck R, Lüschow D, Hafez H M (2006): Detection of Histomonas meleagridis DNA in different organs after natural and experimental infections of meat turkeys. Avian Dis 50: 35–38.
  • Hafez H M, Hauck R (2006): Efficacy of a herbal product against Histomonas meleagridis after experimental infection of turkey poults. Arch Anim Nutr 60: 436–442.
  • Hafez H M, Hauck R, Lüschow D, McDougald L (2005): Comparison of the specificity and sensitivity of PCR, nested PCR, and real-time PCR for the diagnosis of histomoniasis. Avian Dis 49: 366–370.