Looper, M.L., Edrington, T.S., Moubarak, A.S., Callaway, T.R., Rosenkrans Jr, C.F. 2008. Effects of the ergot alkaloids dihydroergotamine, ergonovine, and ergotamine on growth of Escherichia coli O157:H7 in vitro. Foodborne Pathogens and Disease. 5(5):25-30.
Looper, M.L., Flores, R., Rorie, R.W., Hallford, D.M., Rosenkrans, C.F. 2008. Endocrine and follicular dynamics are influenced by body condition and somatotropin in post-partum beef cows. Journal of Animal Science. 86:1335-1344.
Flores, R., Coblentz, W.K., Ogden, R.K., Coffey, K.P., Looper, M.L., West, C.P., Rosenkrans, C.F. 2008. Effects of fescue type and sampling date on the N disappearance kinetics of autumn-stockpiled all fescue. Journal of Dairy Science. 91:1597-1606.
Lents, C., Wettemann, R., Paape, M.J., Looper, M.L., Buchanan, D. Effects of dry cow treatment of beef cows on pathogenic organisms, milk somatic cell counts, and calf growth during the subsequent lactation
. American Society of Animal Science. 86:748-755.
Looper, M.L., Neidecker, T.P., Johnson, Z.B., Rosenkrans, C.F. 2008. Relationship of lactate dehydrogenase activity with body measeurements of Angus x Charolais cows and calves. Professional Animal Scientist. 24:60-66
Flores, R., Coblentz, W.K., Ogden, R., Coffey, K.P., Looper, M.L., West, C.P., Rosenkrans, C.F. 2007. Effects of fescue type, sampling date, and grazing by dairy replacement heifers on nitrogen partitioning and in situ disappearance kinetics of N for autumn-stockpiled tall fescue forages [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 77-5.
Flores, R., Coblentz, W.K., Ogden, R.K., Coffey, K.P., Looper, M.L., West, C.P., Rosenkrans, C.F. 2007. Effects of Fescue Type and Sampling Date on the Ruminal Disappearance Kinetics of Autumn-Stockpiled Tall Fescue. Journal of Dairy Science. 90:2883-2896.
Banks, A., Looper, M.L., Reiter, S., Starkey, L., Flores, R., Hallford, D., Rosenkrans, Jr, C. 2007. Identification of single nucleotide polymorphisms within the promoter region of the bovine heat shock protein 70 gene and associations with pregnancy. American Society of Animal Science Southern Section Meeting. 85(Suppl. 2):10.
Looper, M.L., Neidecker, T.P., Wall, C.W., Reiter, S.T., Flores, R., Brown, Jr, A.H., Johnson, Z.B., Rosenkrans, Jr, C.F. 2007. Relationship of lactate dehydrogenase activity to body measurements of Angus x Charolais cows and calves. American Society of Animal Science Southern Section Meeting. 85(Suppl. 2):29.
Starkey, L., Looper, M.L., Banks, A., Reiter, S., Rosenkrans, Jr, C. 2007. Identification of polymorphisms in the promoter region of the bovine heat shock protein gene and associations with bull calf weaning weight. American Society of Animal Science Southern Section Meeting. 85:(Suppl. 2):42.
Flores, R., Coblentz, W.K., Rosenkrans, C.F., Ogden, R.K., Coffey, K.P., Looper, M.L., West, C.P. 2006. Effects of Fescue Type, Sampling Date, and Grazing by Dairy Replacement Heifers on the Nutritive Value and In Situ Ruminal Disappearance Kinetics of DM and NDF for Autumn-Stockpiled Tall Fescue Forages [abstract]. ASA-CSSA-SSSA International Annual Meeting. Abstract No. 1935b.
Edrington, T.S., Looper, M.L., Duke, S.E., Callaway, T.R., Genovese, K.J., Anderson, R.C., Nisbet, D.J. 2006. Effect of ionophore supplementation on the incidence of Escherichia coli O157:H7 and Salmonella and antimicrobial susceptibility of fecal coliforms in stocker cattle. Foodborne Pathogens and Disease. 3:284-291.
Aiken, G.E., Looper, M.L., Kirch, B.H. 2006. Physiological Changes in Heifers Following Grazing of Toxic or Non-Toxic Tall Fescue. American Society of Animal Science Proceedings. Journal of Animal Science. 84(1):101.
Aiken, G.E., Looper, M.L., Kirch, B.H. 2006. Physiologic changes in heifers following grazing of toxic or non-toxic tall fescue. American Society of Animal Science. 89(1):101.
Looper, M.L., Flores, R., Aiken, G.E., Rosenkrans, Jr, C.F., Brauer, D.K. 2006. Comparison of forage availability and nutritive composition of bahiagrass and bermudagrass grazed by steers with or without steroid implants in west-central arkansas. American Forage and Grassland Conference Proceedings. 15:92-96.
Flores, R., Looper, M.L., Aiken, G.E., Coblentz, W.K., Ogden, R.K., Caldwell, J.D., Coffey, K.P., Rosenkrans, Jr, C.F. 2006. Quality characteristics and in situ dry matter disappearance kinetics of bahiagrass and three varieties of bermudagrass harvested during the summer and early fall in west-central arkansas. American Forage and Grassland Conference Proceedings. 15:97-101.
Looper, M.L., Edrington, T.S., Flores, R., Rosenkrans, Jr, C.F., Aiken, G.E. 2006. Escherichia coli O157:H7 and salmonella in water and soil from tall fescue paddocks. Foodborne Pathogens and Disease. 3(2):203-208.
Flores, R., Looper, M.L., Kreider, D.L., Post, N.M., Rosenkrans, Jr, C.F. 2006. Estrous behavior and initiation of estrus cycles in postpartum Brahman influenced cows after treatment with progesterone and prostaglandin F2a. Journal of Animal Science. 84:1916-1926.
Aiken, G.E., Looper, M.L., Tabler, S.F. 2005. Stocking Rate and Implantation Effects on Weight Gain and Recovery from Heat Stress for Yearling Steers Grazed on Endophyte-Infected Tall Fescue. Crop Science Society of America Monograph. Nov 8,2005:10.
Looper, M.L., Burke, J.M., Mcbeth, L.J., Krehbiel, C.R., Flores, R., Rosenkrans Jr, C.F., Aiken, G.E. 2005. Growth, feedlot performance, and carcass characteristics of Angus and Charolais-sired calves castrated at birth or weaning. Arkansas Agricultural Experiment Station Research Series. 535:109-111.
Flores, R., May, J., Nihsen, M., Looper, M.L., May, K., Hallford, D., Rosenkrans, Jr, C. 2005. Relationships between calf serum metabolites at feedlot entry and subsequent carcass characteristics in Brangus-crossbred calves. Western Section of Animal Science Proceedings. 56:240-242.
Rosenkrans, Jr, C., Nihsen, M., Flores, R., Yazwinski, T., Kreider, D., Coffey, K., Coblentz, W., Looper, M.L., Schrick, N. 2005. Effects of forage cultivar and anthelmintic on steer responses to immune challenge. Western Section of Animal Science Proceedings. 56:213.
Looper, M.L., Aiken, G.E., Tabler, S.F., Flores, R., Rosenkrans, C.F., Miesner, J.R. 2005. Effects of harvest frequency and nitrogen fertilization on quantity and quality of stockpiled comon bermudagrass. American Forage and Grassland Conference Proceedings. 14:191-195.
Looper, M.L., Aiken, G.E., Flores, R., Rosenkrans, C.F. 2005. Influence of nutrient supplementation on body weight and condition, and pregnancy of market beef cows grazing stockpiled and spring-growth tall fescue. Professional Animal Scientist. 21:225-231.
Flores, R., Looper, M.L., Coffey, K.P., Coblentz, W.K., Rosenkrans, Jr, C.F. 2005. Relationship of prepartum concentrations of insulin-like growth factor-i (igf-i) in cows with birth weight, concentrations of igf-i, and weaning weights of calves. American Society of Animal Science Southern Section Meeting. Journal of Animal Science 83(Suppl. 2):31.
Looper, M.L., Edrington, T.S., Flores, R., Rosenkrans, Jr, C.F., Nihsen, M.E., Aiken, G.E. 2005. Incidence of fecal shedding of E. coli 0157:H7 and salmonella in stocker steers grazing different forages. American Society of Animal Science Southern Section Meeting. Journal of Animal Science 83:(Suppl. 2):9.
Looper, M.L., Burke, J.M., Mcbeth, L.J., Krehbiel, C.R., Flores, R., Rosenkrans, Jr, C.F., Aiken, G.E. 2005. Effects of time of castration on growth, feedlot performance, and carcass characteristics of Angus and Charolais-sired calves. American Society of Animal Science Southern Section Meeting. Journal of Animal Science 83(Suppl. 2):32.
Aiken, G.E., Looper, M.L., Tabler, S.F., Strickland, J.R. 2005. Recovery of yearling calves from fescue toxicosis. International Grasslands Congress.
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Schroeder, S.B., Edrington, T.S., Looper, M.L., Schultz, C.L., Rosenkrans, Jr., C.F., Flores, R., Callaway, T.R., Anderson, R.C., Nisbet, D.J. 2004. Incidence of foodborne pathogens and antimicrobial susceptibility of fecal coliforms in stocker calves fed ionophore. Proceedings of Western Section of American Society of Animal Science. 55:353-356.
Burke, J.M., Brauer, D.K., Looper, M.L. 2004. Use of novel endophyte-infected tall fescue for cow-calf production in arkansas. American Society of Animal Science Annual Meeting. 82 (Supplement 1):91.
Burke, J.M., Brauer, D.K., Looper, M.L. 2004. Calving rate and production responses of long-term exposure to endophyte-infected tall fescue. American Society of Animal Science Annual Meeting. 82(Supplement 1):90.
Edrington, T.S., Schultz, C.L., Genovese, K.J., Callaway, T.R., Looper, M.L., Bischoff, K.M., McReynolds, J.L., Anderson, R.C., Nisbet, D.J. 2004. Examination of heat stress and stage of lactation (early vs late) on fecal shedding of E. coli O157:H7 and Salmonella in dairy cattle. Foodborne Pathogens and Disease. 1:114-119.
Shroeder, S.B., Edrington, T.S., Looper, M.L., Schultz, C.L., Rosenkrans, Jr., C.F., Flores, R., Callaway, T.R., Anderson, R.C., Nisbet, D.J. 2004. Incidence of foodborne pathogens and antimicrobial susceptibility of fecal coliforms in stocker calves fed ionophore. Proceedings of Western Section of American Society of Animal Science. 55:353-356.
Looper, M.L., Rosenkrans, Jr, C.F., Flores, R., Aiken, G.E., Duke, S.E. 2004. Physiological indicators of growth are influenced by supplementation and steroid implantation in steers. American Society of Animal Science Annual Meeting. 82(Suppl. 1):492.
Looper, M.L., Edrington, T.S., Rosenkrans, Jr, C.F., Schultz, C.L., Callaway, T.R., Aiken, G.E., Flores, R., Brauer, D.K. 2004. Effects of the ergot alkaloids dihydroergotamine, ergonovine, and ergotamine on growth of escherichia coli o157:h7 and salmonella in vitro. International Neotyphodium Grass Interactions. #503.
Brauer, D.K., Burner, D.M., Looper, M.L. 2004. Effects of tree configuration on the understory productivity of a loblolly pine-forage agroforestry practice. American Forage and Grassland Conference Proceedings. 13:412-416.
Edrington, T.S., Hume, M.E., Looper, M.L., Fitzgerald, A.C., Callaway, T.R., Genovese, K.J., Bischoff, K.M., McReynolds, J.L., Anderson, R.C., Nisbet, D.J. 2004. Variation in the faecal shedding of Salmonella and E. coli O157:H7 in lactating dairy cattle and examination of Salmonella genotypes using pulsed field gel electrophoresis. Letters In Applied Microbiology. 38:366-372.
LOOPER, M.L., AIKEN, G.E., FLORES, R., ROSENKRANS, JR, C.F. 2004. EFFECTS OF DIET ON PERFORMANCE, REPRODUCTION, AND ECONOMICS OF MARKET COWS GRAZING STOCKPILED FESCUE. AMERICAN SOCIETY OF ANIMAL SCIENCE SOUTHERN SECTION MEETING. 82(Suppl. 2):4.
Edrington, T.S., Bischoff, K.M., Callaway, T.R., Looper, M.L., Genovese, K.J., Jung, Y., Anderson, R.C., Nisbet, D.J. 2004. Antimicrobial resistance and serotype prevalence of Salmonella isolated from dairy cattle in the southwestern United States. Microbial Drug Resistance. 10(1):51-56.
FLORES, R., LOOPER, M.L., KREIDER, D.L., ROSENKRANS, JR, C.F. 2004. INFLUENCE OF PROGESTERONE ON ESTROUS CHARACTERISTICS AND PREGNANCY RATE OF GRAZING BEEF COWS. AMERICAN SOCIETY OF ANIMAL SCIENCE SOUTHERN SECTION MEETING. 82(Suppl. 2):20.
Flores, R., Looper, M.L., Thomas, M.G., Hallford, D.M. 2004. Influence of bovine somatotropin on estrous characteristics and reproduction of holstein cows during summer months. Professional Animal Scientist. 20:191.
FITZGERALD, A.C., LOOPER, M.L. 2003. INFLUENCE OF FEVER AND METABOLIC DISORDERS ON MILK YIELD AND REPRODUCTION IN POSTPARTUM COWS. JOURNAL OF DAIRY SCIENCE. 19:429-434.
FITZGERALD, A.C., EDRINGTON, T.S., LOOPER, M.L., CALLAWAY, T.R., ELDER, R.O., GENOVESE, K.J., BISCHOFF, K.M., THOMAS, J.D., ANDERSON, R.C., NISBET, D.J. ANTIMICROBIAL SUSCEPTIBILITY AND FACTORS AFFECTING THE SHEDDING OF E. COLI O157:H7 AND SALMONELLA IN DAIRY CATTLE. LETTERS IN APPLIED MICROBIOLOGY. 2003. V. 37. P. 392-398.
LOOPER, M.L., ROSENKRANS JR, C.F., AIKEN, G.E., EDRINGTON, T.S. ESCHERICHIA COLI AND SALMONELLA IN BEEF CATTLE GRAZING TALL FESCUE. ARKANSAS EXPERIMENT STATION RESEARCH SERIES. 2003. V. 509. P. 58-60.
LOOPER, M.L., ROSENKRANS JR, C.F., AIKEN, G.E., MAY, J.A. 2003. GROWTH PERFORMANCE OF STOCKER STEERS GRAZING BERMUDAGRASS. ARKANSAS EXPERIMENT STATION RESEARCH SERIES. 509:102-104.
LOOPER, M.L., AIKEN, G.E., MAY, J.A., ROSENKRANS JR, C.F. 2003. INFLUENCE OF STEROID IMPLANTATION AND SUPPLEMENTATION ON PERFORMANCE AND LACTATE DEHYDROGENASE ACTIVITY IN STEERS GRAZING BERMUDAGRASS. AMERICAN SOCIETY OF ANIMAL SCIENCE SOUTHERN SECTION MEETING. 81(Suppl. 2):22.