David G Riley
SubTropical Agricultural Research Station
Research Geneticist (Animals)
Phone: (352) 796-3385
Fax: (352) 796-2930
BEEF CATTLE RESEARCH
22271 CHINSEGUT HILL ROAD BROOKSVILLE, FL, 34601-4672
Caldwell, L.C., Chase, C.C., Riley, D.G., Coleman, S.W., Phillips, W.A., Welch, Jr., T.H., Randel, R.D. 2009. [abstract]Influence of tropical adaptation on plasma insulin-like growth factor-I and residual feed intake in purebred and crossbred beef cattle. American Society of Animal Science Southern Section Meeting, January 31, 2009 to February 3, 2009, Atlanta, Georgia.
Scharf, B., Wax, L., Carroll, J.A., Riley, D.G., Chase, C.C., Coleman, S.W., Keisler, D., Spiers, D. 2008. Evaluation of physiological and blood serum differences in heat tolerant (Romosinuano) and heat susceptible (Angus) Bos taurus cattle for determination of markers of sensitivity. Proceedings of the Eighth Annual International Livestock Environment Symposium, August 31-September 4, 2008, Iguassu Falls, Brazil.
Elzo, M.A., Riley, D.G., Hansen, G.R., Johnson, D.D., Myer, R.O., Rae, D.O., Wasdin, J.R., Driver, J.D. 2008. Effect of breed composition, temperament, and ELISA scores for paratuberculosis on phenotypic residual feed intake and growth in an Angus-Brahman multibreed herd [absrtact]. American Society of Animal Science Proceedings.J. 86(1):204.
Riley, D.G., Loneragan, G.H., Phillips, W.A., Gray, J.T., Cray, P.J. 2008. Fecal shedding of foodborne pathogens and other enterobacteriaceae by Florida heifers and steers in US beef production segments. Journal of Food Protection.71:807¿810.
Chase, C.C., Randel, R.D., Riley, D.G., Coleman, S.W., Olson, T.A. Genetic Effects on Circulating Concentrations of Cortisol At and After Weaning in Breed-types Adapted to the Subtropics[abstract]. Journal of Animal Science Supplement. Southern Association of Agricultural Scientists. Journal of Animal Science Supplement. Vol. 86, E-Suppl.3. Paper No. 5.
Carroll, J.A., Arthington, J., Chase Jr., C.C., Coleman, S.W., Riley, D.G., Spiers, D., Reuter, R. 2008. Genetic influences on the bovine acute phase protein response following an endotoxin challenge [abstract]. Journal of Animal Science. 86(Suppl. 2):21. (Abstract #79)
Phillips, W.A., Coleman, S.W., Chase, C.C., Riley, D.G. 2008. Predicting back fat thickness in beef cattle using A-mode ultrasound [abstract]. Southern Section of American Society of Animal Science Annual Meeting, San Antonio, TX, February 2-5, 2008. p. 25.
Coleman, S.W., Chase, C.C., Riley, D.G. 2006. Use of cuticular wax alkanes to estimate digestibility and intake of cows as pasture with a view to estimating efficiency [abstract]. Journal of Animal Science Supplement. 84(1): Page No. 447.
Qiu, X., Arthington, J., Riley, D.G., Chase, C.C., Phillips, W.A., Coleman, S.W. 2006. Effect of breed on acute phase protein response to weaning and transport in beef calves [abstract]. Journal of Animal Science Supplement.84(2): Paper No. 48
Qiu, X., Arthington, J.D., Riley, D.G., Chase, C.C., Phillips, W.A., Coleman, S.W., Olson, T.A. 2007. Genetic effects on acute-phase protein response to the stresses of weaning and transportation in beef calves.. Journal of Animal Science. 85:2367-2374.
Arthington, J.D., Riley, D.G., Chase, C.C., Rae, D.O., Griffin, J.L., Coleman, S.W. 2007. Comparison of Florida-born, embryo-derived Angus calves sourced from Kansas and Florida herds on measures of performance, disposition, and body temperature from birth to weaning [abstract]. Journal of Animal Science. 85(2);Paper No. 7.
Coleman, S.W., Bowers, E.J., Riley, D.G., Chase, C.C. 2007. Determination of Alkane Content in Fresh Fecal Samples to Estimate Intake on Pasture [abstract]. American Society of Animal Science Southern Section Meeting. 85(2): Page No. 17.
Brenneman, R.A., Chase, C.C., Olson, T.A., Riley, D.G., Coleman, S.W. 2007. Genetic diversity among the angus, the american brahman, the senepol and the romosinuano cattle breeds. Animal Genetics. 38, 50-53.
Riley, D.G., Chase, C.C., Coleman, S.W., Olson, T.A. 2007. Evaluation of birth and weaning traits of romosinuano calves as pruebreds and crosses with brahman and angus. Journal of Animal Science. 85:289-298.
Riley, D.G., Coleman, S.W., Chase, C.C., Olson, T.A., Hammond, A.C. 2007. Genetic parameters for weight, hip height, and the ratio of weight to hip height from random regression analyses of brahman feedlot cattle. Journal of Animal Science.85:42-52.
Riley, D.G., Chase, C.C., Coleman, S.W., Olson, T.A. 2006. Comparison of pure and crossbred calves produced by brooksville angus sires and sires from prominent angus bloodlines for calf traits [abstract]. Journal of Animal Science.84(2): 9.
Spatz, J., Riley, D.G., Chase, C.C., Coleman, S.W., Olson, T.A. 2006. Evaluation of romosinuano as straightbreds and crossbreds with angus and brahman: postweaning growth and temperament traits of heifers [abstract]. Journal of Animal Science.84(2):9
Phillips, W.A., Coleman, S.W., Riley, D.G., Chase, C.C., Mayeux, H.S. 2006. Limit-grazing of winter wheat pasture to increase stocker productivity [abstract]. Proceedings of American Society of Animal Science Southern Section Meeting, February 4-8, 2006, Orlando Florida. p. 53.
Casas, E., White, S.N., Wheeler, T.L., Shackelford, S.D., Koohmaraie, M., Riley, D.G., Chase, C.C., Johnson, D.D., Smith, T.P. 2006. Testing for interactions between Calpastatin and u-Calpain markers in beef cattle on tenderness traits [abstract]. Midwestern Section of the American Society of Animal Science. 84(Suppl. 2):135. Paper No. 329.
Praharani, L., Riley, D.G., Olson, T.A. 2005. Genetic parameters and environmental facors for growth traits in bali cattle [Abstract]. Journal of Animal Science Supplement. 83(1):14
White, S.N., Casas, E., Wheeler, T.L., Shackelford, S.D., Koohmaraie, M., Riley, D.G., Chase, C.C., Johnson, D.D., Keele, J.W., Smith, T.P. 2005. A new snp in capn1 extends the current tenderness marker test to include cattle of bos indicus, bos taurus, and crossbred descent. Journal of Animal Science. 83:2001-2008.
Riley, D.G., Hansen, G.R., Crockett, J.R., Olson, T.A., Chase, C.C., Franke, D.E. 2005. Florida crossbreeding research. American Society of Animal Science Southern Section Meeting on Tropically Adapted Breeds- Multi State Regional Project S-1013. February 2005. Little Rock, AR. 83(2):25. paper no. 97.
Sanders, J.O., Riley, D.G., Paschal, J., Lunt, D.K. 2005. Evaluation of the F1 crosses of five bos indicus breeds with hereford for birth, growth, carcass, cow productivity and longevity characteristics. American Society of Animal Science Southern Section Meeting. Regional Project S-1013. Little Rock, AR, February 8, 2005. 83(2):p. 88-99.
Sanders, J.O., Key, K.L., Riley, D.G., Lunt, D.K. 2005. Evaluation of heterosis retention for cow productivity traits in bos indicus/bos taurus crosses. American Society of Animal Science Southern Section Meeting. Symposium on Tropically Adapted Breeds. Regional Project S-1013. Little Rock, AR., February 8, 2005. pp.196-203.
Chase, C.C., Riley, D.G., Olson, T.A., Coleman, S.W. 2005. Evaluation of brahman and tropically adapted bos taurus breeds in the humid subtropics. American Society of Animal Science Southern Section Meeting,Symposium on Tropically Adapted Breeds. Regional Project S-1013. Little Rock, Arkansas, February 4-8, 2005. p 27.
Riley, D.G., Hansen, G.R., Crockett, J.R., Olson, T.A., Chase, C.C. 2005. Florida crossbreeding research. American Society of Animal Science Southern Section Meeting. February 4-8, 2005, Little Rock AR. Paper No. 97. p.25.
White, S.N., Casas, E., Wheeler, T.L., Shackelford, S.D., Koohmaraie, M., Riley, D.G., Chase, C.C., Johnson, D.D., Keele, J.W., Smith, T.P. 2005. A new snp marker in capn1 is associated with tenderness in cattle of indicine, taurine, and admixed descent. Proc., Plant & Animal Genome XIII, San Diego, CA. P528. p. 203. 2005.
Chase, C.C. Jr., Casas, E., White, S.N., Riley, D.G., Smith, T.P., Brenneman, R.A., Olson, T.A., Johnson, D.D., Coleman, S.W., Bennett, G.L. 2005. Assessment of single nucleotide polymorphisms in genes residing on chromosomes 14 and 29 for association with carcass composition traits in Bos indicus cattle [Abstract]. Plant and Animal Genome XIII, January 15-19, 2005, San Diego, CA. p. 203.
Casas, E., White, S.N., Riley, D.G., Smith, T.P., Brenneman, R.A., Olson, T.A., Johnson, D.D., Coleman, S.W., Bennett, G.L., Chase, C.C. 2005. Assessment of single nucleotide polymorphisms in genes residing on chromosomes 14 and 29 for association with carcass composition traits in bos indicus cattle. Journal of Animal Science. 83:13-19.
Chase, C.C., Riley, D.G., Olson, T.A., Coleman, S.W., Hammond, A.C. 2004. Maternal and reproductive performance of brahman x angus, senepol x angus, and tuli x angus cows in the subtropics. Journal of Animal Science: Vol.82, pp. 2764- 2772.
Arthington, J.D., Riley, D.G., Chase, C.C., Coleman, S.W., Olson, T.A. 2004. Acute phase protein response to weaning and transport in calves produced by matings of romosinuano, angus, and brahman. Journal of Animal Science:Vol.82, suppl.1, pp.59-60
Riley, D.G., Chase, C.C., Coleman, S.W., Randel, R.D., Olson, T.A. Assessment of temperament at weaning in calves produced from diallel matings of angus, brahman, and romosinuano. Journal of Animal Science: Vol. 82(suppl. 1) p.6.
Riley, D.G., Chase, C.C., Coleman, S.W., Olson, T.A. 2004. Evaluation of romosinuano as straightbreds and crossbreds with angus and brahman: claf traits. Journal of Animal Science: Vol. 2, Suppl.2, pg.4.
Riley, D.G., Chase, C.C., Pringle, T.D., West, R.L., Johnson, D.D., Olson, T.A., Hammond, A.C., Coleman, S.W. 2003. Effect of sire on mu- and m-calpain activity and rate of tenderization as indicated by myofibrillar fragmentation indices of brahman steaks. Journal of Animal Science. 81:2440-2447.
Phillips, W.A., Coleman, S.W., Riley, D.G., Chase, C.C., Mayeux, H.S. 2004. Evaluation of Romosinuano as straightbreds and crossbreds with Angus and Brahman: Stocker and feedlot gains [abstract]. American Society of Animal Science Southern Section Meeting. Paper No. 21.
Brenneman, R.A., Chase, C.C., Olson, T.A., Riley, D.G., Coleman, S.W. 2003. Genetic diversity between the angus, the american brahman, the senepol and the romosinuano cattle breeds. Journal of Animal Science Vol.80(Suppl.1):378.
Riley, D.G., Chase, C.C., Olson, T.A., Hammond, A.C., Coleman, S.W. 2003. Reproductive and maternal performance of f1 brahman-, senepol-, and tuli-angus cows bred to charolais bulls as 3- to 8-yr-olds. Journal of Animal Science.81(2):4
PHILLIPS, W.A., COLEMAN, S.W., RILEY, D.G., CHASE, C.C., MAYEUX JR, H.S. PERFORMANCE OF ROMOSINUANO STEER CALVES AS WINTER STOCKER CALVES FOR THE SOUTHERN GREAT PLAINS. JOURNAL OF ANIMAL SCIENCE. 2003. p. 21.
Riley, D.G., Chase, C.C., Olson, T.A., Hammond, A.C., Coleman, S.W. 2003. Reproductive and maternal performance of f1 brahman-, senepol-, and tuli-angus cows bred to charolais bulls as 3- to 8-yr olds [abstract]. Journal of Animal Science.81(2):4
Riley, D.G., Chase, C.C., Pringle, T.D., West, R.L., Johnson, D.D., Hammond, A.C., Olson, T.A., Coleman, S.W. 2002. Effect of sire on rate and extent of postmortem increase in myofibrillar fragmentation indices of brahman longissimus steaks [abstract]. Joint Abstracts of the American Dairy Science and Society of Animal Science. 85(1):322.