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Gamma Sigma Delta International

UA Dale Bumpers College of Agricultural, Food and Life Sciences

UA Division of Agriculture


Gamma Sigma Delta
Arkansas Chapter
University of Arkansas


Student Research Competition Winners
March 14, 2012
Pauline Whitaker Animal Science Center

students 2012
First-place winners in oral presenation competition, from left: Angela Mays, Ph.D.; Courtney Moon, undergraduate, and Jessica Hartshorn, master's.

Undergradate Poster Presentations

FIRST: Rosalee Reese, J. K. Apple, J. W. S. Yancey, J. J. Hollenbeck, and T. M. Johnson. Effect of quality grade category on color stability of beef longissimus thoracis (LT) and psoas major (PM)

Undergraduate Oral Presentations

FIRST Courtney T. Moon, J. W. S. Yancey, J. K. Apple, J. J. Hollenbeck, T. M. Johnson, and A. R. Winters. Lean beef trim improved fresh and cooked quality characteristics of ground beef patties

SECOND: Joan M. Bauer, E. B. Kegley, J. T. Richeson, D. L. Galloway, J. A. Hornsby, and J. L. Reynolds. Impact of different handling styles (good vs. adverse) on growth performance, behavior, and cortisol concentrations in beef cattle

THIRD: Rosalee Reese, J. K. Apple, J. W. S. Yancey, J. J. Hollenbeck, and T. M. Johnson. Effect of quality grade category on color development in the beef longissimus thoracis (LT) and psoas major (PM)

M.S. Poster Presentations

FIRST: Clay E. Starkey, N. R. Burgos, J. K. Norsworthy, and J. D. Devore. Barnyardgrass (Echinochloa Crus-galli) resistance to herbicides in Arkansas

SECOND: Reiofeli A. Salas, N. R. Burgos, G. M. Botha, N. Polge, R. C. Scott, and J. W. Dickson. Absorption and translocation of glyphosate in resistant Italian ryegrass from Arkansas

THIRD: Austin L. Lewis, J. K. Norsworthy, D. B. Johnson, C. E. Starkey, D. S. Riar, and J. A. Bond. Confirmation of Acetolactate synthase (ALS)-resistant rice flatsedge (Cyperus iria L.) in midsouth rice (ORYZA SATIVA)

THIRD: Elizabeth A. Backes, J. D. Caldwell, B. C. Shanks, M. J. Singer, M. D. Schulte, L. S. Wilbers, C. A. Clifford-Rathert, A. N. V. Stewart, A. K. Wurst, H. A. Swartz, D. L. Kreider, and M. L. Looper. Performance, parasite load, and reproductive measurements by yearling Katahdin ewes grazing tall fescue pastures using continuous or rotational grazing schemes – 1 year summary

M.S. Oral Presentations

FIRST: Jessica Hartshorn and F. M. Stephen. Moisture content of pine logs and its effects on oviposition behavior of Sirex nigricornis F. (Hymenoptera:Siricidae)

SECOND: Clay E. Starkey, J. K. Norsworthy, and D. B. Johnson. RiceBeaux mixed with Command for controlling propanil-resistant barnyardgrass (Echinochloa crus-galli)

THIRD: Amanda J. Davis, D. L. Kreider, C. F. Rosenkrans, Jr., J. G. Powell, R. W. Rorie, M. L. Looper, M. P. Rowe, C. L. Williams, R. J. Page, T. D. Lester, and J. B. Wooley. Single nucleotide polymorphisms of the FSHβ gene & effects on semen quality

THIRD: Kimberly D. Poe, P. A. Beck, J. T. Richeson, T. W. Hess, D. S. Hubbell, J. G. Powell, and D. L. Kreider. Effects of respiratory vaccination timing and hormonal growth implant on health, performance, and immunity of newly received stocker calves

Ph.D. Poster Presentations

FIRST: Te-Ming Tseng, N. R. Burgos, E. –A. L. Alcober, and V. K. Shivrain. Molecular detection of seed dormancy in weedy red rice

SECOND: Tyson B. Raper, D. M. Oosterhuis, U. Siddons, L. C. Purcell, and M. Mozaffari. Assessment of cotton N status by digital camera

THIRD: Vijay Singh, N. R. Burgos, S. Mariccor, A. B. Batoy, and G. M. Botha. Differential response of Johnsongrass populations to herbicides

Ph.D. Oral Presentations

FIRST: Angela R. Mays, M. A. Brown, A. H. Brown, Jr., C. D. Steelman, and C. F. Rosenkrans, Jr. Relationship between polymorphisms in the cytochrome P450 gene and horn fly infestation in beef cows

SECOND: Te-Ming Tseng, N. R. Burgos, E. –A. L. Alcober, and V. K. Shivrain. Seed dormancy in weedy red rice: Gene diversity and dormancy markers

THIRD: Madhuram Ravichandran, N. S. Hettiarachchy, S. C. Ricke, and S. Singh. Enhancement of antimicrobial diamine tetra acetic acid and nisin by nanoparticle mediated delivery on Listeria monocytogenes, Escherichia coli O157:H7 and Salmonella typhimurium in broth system and chicken meat model system