• Improve Beef Quality
• Improve Beef Palatability.

Refereed Publications

---

Bates, R.O., M.E. Doumit, N.E. Raney, E.E. Helman, and C.W. Ernst. 2012. Association of halothane sensitivity with growth and meat quality in pigs. Animal 6:1537-1542.

Cheguru, P., K.C. Chapalamadugu, M.E. Doumit, G.K. Murdoch, and R.A. Hill. 2012. Adipocyte differentiation-specific gene transcriptional response to C18 unsaturated fatty acids plus insulin. Pflugers Arch. 463:429-447Thornton K.J., C.M. Welch, L.C. Davis, M.E. Doumit, R.A. Hill, and G.K. Murdoch. 2012. Bovine sire selection based on maintenance energy affects muscle fiber type and meat color of F1 progeny. J. Anim. Sci. 90:1617-1627.

Welch C.M., J.K. Ahola, J.B. Hall, G.K. Murdoch, D.J. Crews Jr., L.C. Davis, M.E. Doumit, W.J. Price, L.D. Keenan, and R.A. Hill. 2012. Relationships among performance, residual feed intake, and product quality of progeny from Red Angus sires divergent for maintenance energy EPD. J. Anim. Sci. jas.2012-5184; published ahead of print August 7, 2012, doi:10.2527/jas.2012-5184.

Bates RO, D.B. Edwards, C.W. Ernst, M.E. Doumit, and M. D. Hoge. 2011. Influence of finishing environment on pig growth performance and carcass merit. J. Swine Health Prod. 19(2):86–93.

McDaneld, T.G., T.P Smith, M.E. Doumit, J.R. Miles, L.L. Coutinho, T.S. Sonstegard, L.K. Matukumalli, D.J. Nonneman and R.T. Wiedmann. 2009. MicroRNA transcriptome profiles during swine skeletal muscle development. BMC Genomics. 10:77-87.
 
Ortiz-Colon, G., A.C. Grant, M.E. Doumit and D.D. Buskirk. 2009. Bovine intramuscular, subcutaneous, and perirenal preadipocytes express similar glucocorticoid receptor isoforms, but exhibit different adipogenic capacity. J. Anim. Sci. 87:1913-1920.
 
Edwards, D.B., C.W. Ernst, N.E. Raney, M.E. Doumit, M.D. Hoge and R.O. Bates. 2008. QTL mapping in an F2 Duroc x Pietrain resource population: II. Carcass and meat quality traits. J. Anim. Sci. 86:254-266.

Grant, A.C., G. Ortiz-Colón, M.E. Doumit, R.J. Tempelman, and D.D. Buskirk. 2008. Differentiation of bovine intramuscular and subcutaneous stromal-vascular cells exposed to dexamethasone and troglitazone. J. Anim. Sci. 86:2531-2538.
 
Grant, A.C., G. Ortiz-Colon, M.E. Doumit and D.D. Buskirk. 2008. Optimization of in vitro conditions for bovine subcutaneous and intramuscular preadipocyte differentiation. J. Anim. Sci. 86:73-82.

Abstracts/Proceedings

---

M. J. Colle, J. A. Nasados, L. C. Davis, R. N. Day, A. R. Gray, C. M. Welch, N. F. Elliott, A. S. Henderson, W. I. Loucks, H. M. Mitchell, R. P. Richard, M. E. Doumit. 2012. Consumer acceptability of beef bottom round steaks treated with calcium chloride and bromelain. Proc. 2012 Reciprocal Meat Conf., p. 65.

K. J. Thornton, K.C. Chapalamadugu, M.E. Doumit, G.K. Murdoch. Satellite cell expression of myogenic regulatory factors is altered when co-cultured with preadipocytes. Experimental Biology, April 2012, San Diego, Ca. Poster Presentation.

Davis, L.C., J.L. Owens, G.K. Murdoch, R.A. Hill, and M.E. Doumit. 2011. Specific long-chain fatty acids preferentially induce differentiation of bovine intramuscular or subcutaneous preadipocytes. Proc. Reciprocal Meat Conf. 64:2.

Nasados, J.A., L.C. Davis, R.N. Day, N.F. Elliot, S.L. King, W.I. Loucks, D.A. Richards, B.D. Enger, I.J. Bridges, R.P. Richard, and M.E. Doumit. 2011. Improving tenderness of beef bottom round steaks with exogenous proteases and calcium chloride. Proc. Reciprocal Meat Conf. 64:44.


Bates, R.O., M.E. Doumit, N.E. Raney, E.E. Helman and C.W. Ernst. 2010. Influence of halothane sensitivity on growth and meat quality in pigs. J. Anim. Sci. 88(E-Suppl. 3). Cheguru, P., M.E. Doumit, G. Murdoch, and R.A. Hill. 2010. Effect of fatty acids on adipocyte differentiation specific gene expression. J. Anim. Sci. 88(E-Suppl. 2):758.

Silvey, D.T., G. Go, L.A. Gilmore, S.B. Smith, B.J. Johnson, and M.E. Doumit. 2010. Interactions between animal age and media fatty acids on subcutaneous and intramuscular adipose tissue explants from Angus steers. J. Anim. Sci. 88(E-Suppl. 2):835.

Doumit, M.E. and C.P. Allison. 2009. Isoelectric Point Demonstration. Proc. 62nd Annual Reciprocal Meat Conf. Included in session on Innovative Teaching Techniques.

Ewing, A.E., J.K. Ahola, M.E. Doumit, and C.W. Hunt. 2009. Pre-harvest feeding, feeding duration, and inclusion of a β-agonist on market dairy cow feedlot performance and carcass characteristics. Proceedings paper, 42nd Annual Meeting of the American Association of Bovine Practitioners, Omaha, NE.

Choi, I.S., R.O. Bates, N.E. Raney, D.B. Edwards, M.E. Doumit and C.W. Ernst. 2008. Confirmation of quantitative trait loci for carcass and meat quality traits on pig chromosome 6 in a Duroc x Pietrain resource population. J. Anim. Sci. 86(Suppl. 2):363.

Prasongsook, S., R.O. Bates, I.S. Choi, V.S. Rilington, N.E. Raney, C.C. Beattie, M.E. Doumit and C.W. Ernst. 2008. Association of insulin-like growth factor binding protein 2 genotypes with growth, carcass and meat quality traits in pigs. J. Anim. Sci. 86(Suppl. 3):51.10

Doumit, Matthew E. Varnes, B.L., E.E. Helman, C.W. Ernst, J.W. Reum, R.J. Tempelman, A.M. Ramos and M.E. Doumit. 2008. Changes in myoblast activity during pig development are not explained by inherent differences in phenotype or global gene expression patterns. J. Anim. Sci. 86(Suppl. 3):125.

 My research program is focused on improving beef quality. This includes both cellular research to understand the fundamental regulation of fat accumulation in subcutaneous and intramuscular adipose tissue depots, as well as applied research to measure and improve beef palatability.
 
Both graduate and undergraduate students play an active role in conducting research in my laboratory. Thus, the research provides a training opportunity, as well as valuable information for industry. Our current projects examine the effects of long-chain fatty acids on the differentiation of preadipocytes from different anatomical fat depots, and explore marination strategies to improve tenderness of the beef bottom round.

 AVS Teaching Committee;  the Sheep Unit Advisory Committee; and I participate in a variety of activities for youth (e.g. Ag Days workshops and judging contest, FFA CDE’s) and industry (e.g. Beef 300, Lamb 300)

University of Idaho Alumni of Excellence Mentor for Will Loucks, December 2012

ASUI Outstanding Faculty Award, 2012

R. M Wade Excellence in Teaching Award, presented by the UI College of Agricultural and Life Sciences. 5/2011

Honored Guest, Block and Bridle Club, Department of Animal Science, Michigan State University, This distinction, which is generally reserved for a faculty member or industry leader near the end of their career, was awarded for contributions to the students of Michigan State University and agriculture through education and service. 3/2010

Outstanding Faculty Award, Disability Support Services, University of Idaho, In recognition of exceptional support in assisting students with disabilities to achieve their academic goals. 4/2009

Distinguished Service Award, Block and Bridle Club, Michigan State. (Local) In recognition of service to students who share a common interest in livestock. 4/2007