Michael J. Azain Professor Animal & Dairy Science
Shipping Address Athens, CAES Campus 425 River Road, Athens, GA 30602

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Portrait of Michael J. Azain


Michael Azain obtained his B.S. in Animal Science from Penn State University in 1979. He received his M.S. in Foods and Nutrition from the University of Georgia in 1981 and his Ph.D. in Biochemistry and Molecular Biology from the University of Oklahoma Health Sciences Center in 1984. Upon completion of his dissertation, he accepted a position in the New Products Identification Group in the Animal Sciences Division at Monsanto in St. Louis. In 1986, he moved into the Drug Delivery Discovery group at Monsanto working on somatotropin.

In 1988, he started as an Assistant Professor of Animal and Dairy Science at the University of Georgia, where he is currently Professor and Graduate Coordinator. He teaches undergraduate and graduate level animal nutrition courses, freshman seminar and directs a study abroad program in Toulouse, France. Dr. Azain’s research interests include investigating the relationship of macronutrient intake with composition of gain in meat animals, the understanding and manipulation of lipid metabolism, and the evaluation of alternative feed ingredients and feed enzymes in both swine and poultry diets. He has authored over 75 peer-reviewed scientific papers, and is an active member of the Swine Nutrition Regional Committee (NCCC-042). He has served as a reviewer, editorial board member, and section editor (Growth and Developmental Biology) for the Journal of Animal Science. Dr. Azain is also on the editorial board of the Journal of Nutrition, has served on several grant review panels and holds an adjunct appointment in the Poultry Science Department at Georgia.

B.S., Pennsylvania State University
M.S., University of Georgia
Ph.D., University of Oklahoma Health Sciences Center

Description of Research Interests

Research interests relate to the regulation of lipid metabolism and the relationship of metabolism to food intake with relevance to both human and animal nutrition. Current areas of research relate to:

  1. Examination of alternative feed ingredients for use in swine or poultry diets
  2. Effect of dietary fat on growth performance and carcass composition
  3. Use of feed enzymes to improve nutrient availability

Courses Taught

ADSC 3300-Animal Nutrition and Metabolism
ANNU 6370-Monogastric Nutrition
ANNU 8350-Carbohydrates and Lipids in Animal Nutrition

Selected Recent Publications

Gonzalez, JM, T A Houser, T G O’Quinn, D E Nuttelman, R L Odgaard, JM Coulter, G Faltys, A M Stelzleni, M J Azain. 2020. The effects of the LIPEX finishing diet regimen on pork quality, fatty acid profile, palatability, and color stability. Translational Animal Science, Volume 4, Issue 1, January 2020, Pages 339–351.

Lourenco JM, Nunn SC, Lee EJ, Dove CR, Callaway TR, Azain MJ. 2020. Effect of Supplemental Protease on Growth Performance and Excreta Microbiome of Broiler Chicks. Microorganisms. 2020 Mar 27;8(4):475.

Su S, Y Wang, CChen, M Suh2,3, M Azain and W K Kim. 2020. Fatty Acid Composition and Regulatory Gene Expression in Late-Term Embryos of ACRB and COBB Broilers. Frontiers in Vet Sci. https://doi.org/10.3389/fvets.2020.00317

Tinkle, A.K., Wilson, M.E., Torrison, J.L., Parsley, M.A., Duberstein, K.J., Azain, M.J. and Dove, C.R., 2020. Comparison of blunt versus functional claw trimming effects on sow gait. Journal of Swine Health and Production, 28(3), pp.118-123.

Tsai TC, Dove R, Bedford MR, Azain MJ. 2020. Effect of phytase on phosphorous balance in 20-kg barrows fed low or adequate phosphorous diets. Anim Nutr. 2020 Mar;6(1):9-15.

Fang X, Azain M, Crowe-White K, Mumaw J, Grimes JA, Schmiedt C, Barletta M, Rayalam S, Park HJ. 2019. Effect of Acute Ingestion of Green Tea Extract and Lemon Juice on Oxidative Stress and Lipid Profile in Pigs Fed a High-Fat Diet. Antioxidants (Basel). 2019 Jun 23;8(6):195.

Edwards GL, Azain MJ, Parks A. 2018. Agricultural Animals as Biomedical Models: Occupational Health and Safety Considerations. ILAR J. 2018 Dec 31;59(2):161-167.

Tsai, T., C.R. Dove, P.M. Cline, A. Owusu-Asiedub, M.C. Walsh, and M. Azain. 2017. The effect of adding xylanase or ß-glucanase to diets with corn distillers dried grains with solubles (CDDGS) on growth performance and nutrient digestibility in nursery pigs. Livestock Sci. 197: 46-52.

Cline, P.M., T.C. Tsai, A.M. Stelzleni, C.R. Dove, M. Azain. 2016. Interaction of dietary energy and protein on growth performance, carcass characteristics and digestibility in finishing barrows when fed at a constant digestible lysine to metabolizable energy ratio. Livestock Science 184:1-6.

Adeola O, Azain MJ, Carter SD, Crenshaw TD, Estienne MJ, Kerr BJ, Lindemann MD, Maxwell CV, Miller PS, Shannon MC, van Heugten E. 2015. A cooperative study on the standardized total-tract digestible phosphorus requirement of twenty-kilogram pigs. J. Anim. Sci. 93:5743-53.

Mahan DC, Azain M, Crenshaw TD, Cromwell GL, Dove CR, Kim SW, Lindemann MD, Miller PS, Pettigrew JE, Stein HH, van Heugten E. 2014. Supplementation of organic and inorganic selenium to diets using grains grown in various regions of the United States with differing natural Se concentrations and fed to grower-finisher swine. J. Anim. Sci. 2014 92:4991-7.

Adeola, O., D. C. Mahan, M. J. Azain, S. K. Baidoo, G. L. Cromwell, G. M. Hill, J. E. Pettigrew, C. V. Maxwell and M. C. Shannon. 2013. Dietary lipid sources and levels for weanling pigs. J. Anim. Sci. 91:4216-4225.

Lin, X., M. J. Azain, and J. Odle. 2013. Lipids and Lipid Utilization. Chapter 3, pp 59-79. Sustainable Swine Nutrition. Edited by L. Chiba.

Lei, X. G., J. D. Weaver, E. Mullaney, A. H. Ullah and M. J. Azain. 2013. Phytase, a new life for an old enzyme. Annual Review of Animal Biosciences 1:1.1-1.27.

Cromwell, G.L., M.J. Azain, O. Adeola, S.K. Baidoo, S. D. Carter, T.D. Crenshaw, S.W. Kim, D.C. Mahan, P.S. Miller, M.C. Shannon , North Central Coordinating Committee on Swine Nutrition. 2011. Corn distillers dried grains with solubles in diets for growing-finishing pigs: a cooperative study. J Anim Sci. 2011 89:2801-11.

Meers, S. A., T. D. Pringle, R. D. Jones, and M. J. Azain. 2010. Effect of body composition on diet selection in finishing pigs. J. Anim. Sci. 88:1733-1740.

Hausman, G. J., M. V. Dodson, K. Ajuwon, M. Azain, K. M. Barnes, L. L. Guan, Z. Jiang, S. P. Poulos, R. D. Sainz, S. Smith, M. Spurlock, J. Novakofski, M. E. Fernyhough, and W. G. Bergen. 2009. Board Invited Review: The biology and regulation of preadipocytes and adipocytes in meat animals. J. Anim Sci. 87: 1218-1246.