Dr. Michael Smith 




Dr. Michael Smith





2506 River Drive
149B Brehm Animal Science Building
Knoxville, Tennessee 37996
Phone: (865) 974-7254
Fax: (865) 974-7297





Ph. D., Oklahoma State University, Animal Nutrition, 1986

M.S., Oklahoma State University, Animal Science, 1983

B.S., Oklahoma State University, Agriculture, 1979  

Appointment:  51% Research | 49% Teaching


Professional Interest: Animal Nutrition/Physiology Interaction

Economic losses associated with the detrimental effects of heat stress on poultry production are at times substantial. Producers as well as consumers are affected in that return on investments for the producer is severely curtailed while the consumer is faced with elevated prices. The economic implications of this problem are great because of its geographically widespread nature. Environmental factors beyond the control of producers in both the more developed countries as well as those with emerging economies impose hardships that he is striving to alleviate through his research-based efforts.  Dr. Smith’s goal is to engage in relevant, high impact research which will help to set the stage for further investigation, and in time, lead to answers which could prove to be valuable tools in the hands of producers world-wide as they attempt to combat the effects of a declining food supply.
To this end, Dr. Smith’s research focuses on the examination of physiological and nutritional factors involved with the growth and survival of heat stressed poultry.  In addition, he is studying the interaction between nutrients, other additives and environment in this type of bird population. Using these findings, he is attempting to develop management and nutrition-based tools to augment poultry production during heat stress. Exposure to high ambient temperatures and high relative humidity causes altered respiration or other physiological aberrations that generally result in reduced growth and decreased efficiency of production. A portion of this growth reduction may be directly attributed to decreased nutrient intake. In the past, nutrient requirements have been estimated based on bird performance in near ideal growing conditions. With decreased feed consumption being a reality under elevated temperature conditions, the challenge is to include environmental considerations in the nutrient requirement determination process while continuing to formulate balanced rations that will support efficient and profitable production.
Dr. Smith also teaches AGNR 491 - International Experience in Agriculture and Natural Resources. 

1-12 Credit Hours 
Credit for formalized international experiences related to agricultural sciences and natural resources. Determination of credit based on nature of the proposed experience. Students should discuss the opportunity with their faculty advisors prior to the trip to determine if it is appropriate for credit. Credit hours will be determined by the department and college depending on the extent of activity and types of projects and/or presentations to be completed by the student upon return.

Repeatability: May be repeated. Maximum 12 hours.
Registration Permission: Consent of instructor.


Selected Publications

  • Sahin, K., M. Tuzcu, M. O. Smith and N. Sahin. 2009. Chromium supplementation:  a tool for alleviation of thermal stress in poultry. CAB Reviews:  Perspectives in Agriculture, Veterinary Science, Nutrition and Natural Resources 4:  No. 071.  http://www.cabi.org/cabreviews

  • Sahin, N., T. A. Balci, O. Kucuk, M. O. Smith and K. Sahin. 2009. Effects of 25-hydroxycholecalciferol and soy isoflavones supplementation on bone mineralization of quail.  Br. Poul. Sci. 50 (6): 709-715.

  • Chung, K. M., M. O. Smith and H. G. Kattesh. 2011. The influence of double interspiking on production and behavior in broiler breeder flocks in elevated temperature conditions.  J. Appl. Poultry Res. 21: 48-62 

  • Smith, D. E.  M. O. Smith, K. R. Robbins, N. S. Eash, and F. R. Walker. 2013. Traditionally under-represented students’ perceptions of a study abroad experience. NACTA Journal (Special Issue) 15-20.  

  • Sahin, K, C, Orhan, MO Smith, and N. Sahin. 2013. Molecular targets of dietary phytochemicals for alleviation of heat stress in poultry.  World’s Poultry Sci. J. 69: 113-123.

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