Projects

Management of Temperate Pastures and Silvopastures for Small Farm Livestock Production Appropriated (D)   Accession Number: 412583

Genetic and Physiological Approaches to Improving Performance of Beef Cattle Grazing Pastures in Which Endophyte-Infected Forages Dominate Appropriated (D)   Accession Number: 412582

Management Protocols to Enhance Efficiency of Beef Cattle Production on Tall Fescue and Improve Product Safety Nonfunded Cooperative Agreement (N)   Accession Number: 407937

Endophyte, Plant and Animal Improvement for Mitigating Fescue Toxicosis Specific Cooperative Agreement (S)   Accession Number: 412934

Fescue Toxicosis: Management and Treatment at Plant and Animal Levels Specific Cooperative Agreement (S)   Accession Number: 412935

Anaerobic Ruminal Microbes That Degrade Endophyte Alkaloids (Both Ergovaline and Lolitrem B) Specific Cooperative Agreement (S)   Accession Number: 412936

Publications

Hemodynamics are Altered in the Caudal Artery of Beef Heifers Fed Different Ergot Alkaloid Concentrations - (Peer Reviewed Journal) - (20-Feb-09)

Performance by Fall-Calving Cows Grazing Tall Fescue Pastures with Different Proportions Stockpiled - (Popular Publication)

Caldwell, J.D., Coffey, K.P., Coblentz, W.K., Jennings, J.A., Hubbell III, D.S., Kreider, D.L., Looper, M.L., Rosenkrans, Jr, C.F. 2009. Performance by Fall-Calving Cows Grazing Tall Fescue Pastures with Different Proportions Stockpiled. Forage and Grazinglands. Available: www.plantmanagementnetwork.org/sub/fg/research/2009/stockpile/

Performance by Fall-Calving Cows Grazing Tall Fescue Pastures With Different Proportions Stockpiled - (Peer Reviewed Journal)

Caldwell, J. D., Coffey, K. P., Coblentz, W. K., Jennings, J. A., Hubbell, D. S., III, Kreider, D. L., Looper, M. L., and Rosenkrans, C. F., Jr. 2009. Performance by fall-calving cows grazing tall fescue pastures with different proportions stockpiled. Online. Forage and Grazinglands doi:10.1094/FG-2009-0312-01-RS.

Fate of Escherichia coli 0157:H7 and Salmonella from Contaminated Manure Slurry Applied to Soil Surrounding Tall Fescue - (Peer Reviewed Journal) - (24-Nov-08)

Post Weaning Performance of Spring-Born Calves Weaned from Tall Fescue Pastures with a Wild-Type Endophyte or a Non-Toxic Novel Endophyte - (Experiment Station)

Coffey, K.P., Caldwell, W.K., Coblentz, W.K., Hess, T.W., Hubbell, Iii, D.S., Ogden, R.K., Akins, M.A., Looper, M.L., Rosenkrans, Jr, C.F. 2008. Post Weaning Performance of Spring-Born Calves Weaned from Tall Fescue Pastures with a Wild-Type Endophyte or a Non-Toxic Novel Endophyte. Research Series 563. Arkansas Animal Science Department Report 2008. (11):37-39.

Effects of the ergot alkaloids dihydroergotamine, ergonovine, and ergotamine on growth of Escherichia coli O157:H7 in vitro - (Peer Reviewed Journal)

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.

Endocrine and follicular dynamics are influenced by body condition and somatotropin in post-partum beef cows - (Peer Reviewed Journal)

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.

Bacteriophage Isolated from Feedlot Cattle Can Reduce Escherichia coli O157:H7 Populations in Ruminant Gastrointestinal Tracts - (Peer Reviewed Journal)

Callaway, T.R., Edrington, T.S., Anderson, R.C., Genovese, K.J., Keen, J.E., Looper, M.L., Nisbet, D.J. 2007. Bacteriophage isolated from feedlot cattle can reduce Escherichia coli O157:H7 populations in ruminant gastrointestinal tracts. Foodborne Pathogens and Disease. 5(2):183-191.

Effects of Fescue Type and Sampling Date on the N Disappearance Kinetics of Autumn-Stockpiled Tall Fescue - (Peer Reviewed Journal)

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.

Effects of dry cow treatment of beef cows on pathogenic organisms, milk somatic cell counts, and calf growth during the subsequent lactation - (Peer Reviewed Journal)

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.

Relationship of lactate dehydrogenase activity with body measeurements of Angus x Charolais cows and calves - (Peer Reviewed Journal)

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

Filling the forage gaps with novel endophyte-infected tall fescue - (Proceedings/Symposium)

Looper, M.L. Filling the forage gaps with novel endophyte-infected tall fescue. Proceedings of Forage and Grassland Conference.

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)

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.

Hemodynamic Responses of the Caudal Artery to Toxic Tall Fescue in Beef Heifers - (Peer Reviewed Journal)

Aiken, G.E., Kirch, B.H., Strickland, J.R., Bush, L.P., Looper, M.L., Schrick, N.F. 2007. Hemodynamic Responses of the Caudal Artery to Toxic Tall Fescue in Beef Heifers. Journal of Animal Science. 2007. 85:2337-2345.

Growth Performance and Immune Function of Fall-Born Beef Calves Weaned from Endophyte Infected Tall Fescue Pastures on Different Dates in the Spring - (Abstract) - (13-Feb-07)

Effects of Fescue Type and Sampling Date on the Ruminal Disappearance Kinetics of Autumn-Stockpiled Tall Fescue - (Peer Reviewed Journal)

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.

Identification of single nucleotide polymorphisms within the promoter region of the bovine heat shock protein 70 gene and associations with pregnancy - (Abstract)

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.

Relationship of lactate dehydrogenase activity to body measurements of Angus x Charolais cows and calves - (Abstract)

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.

Identification of polymorphisms in the promoter region of the bovine heat shock protein gene and associations with bull calf weaning weight - (Abstract)

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.

Usda-Kentucky Report: Forage-Animal Production Research Unit (Fapru) Investigations: Tall Fescue Alkaloids and Toxicosis - (Proceedings/Symposium)

Strickland, J.R., Aiken, G.E., Dinkins, R.D., Klotz, J.L., Kirch, B.H., Smith, L.L., Looper, M.L., Bush, L.P., Arrington, B.C., Smith, D.L., Shafer, W.D., Schardl, C., Hesse, U. 2006. Usda-Kentucky Report: Forage-Animal Production Research Unit (FAPRU) Investigations: Tall Fescue Alkaloids and Toxicosis. SERA-IEG 8. Annual Report: pgs. 97-111.

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)

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.

Changes in Symptoms of Toxicosis for Pregnant and Open Heifers Following Grazing of Tall Fescue - (Other) - (09-Jun-06)

Effect of Ionophore Supplementation on the Incidence of E. Coli O157:h7 and Salmonella and Antimicrobial Susceptibility of Fecal Coliforms in Stocker Cattle - (Peer Reviewed Journal)

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.

Physiological Changes in Heifers Following Grazing of Toxic or Non-Toxic Tall Fescue - (Abstract)

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.

Physiologic Changes in Heifers Following Grazing of Toxic Or Non-Toxic Tall Fescue - (Abstract)

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.

Comparison of Forage Availability and Nutritive Composition of Bahiagrass and Bermudagrass Grazed by Steers with Or Without Steroid Implants in West-Central Arkansas - (Proceedings/Symposium)

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.

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 - (Proceedings/Symposium)

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.

A New Theory for the Seasonal Shedding of E. Coli O157:h7 in Ruminants - (Peer Reviewed Journal)

Edrington, T.S., Callaway, T.R., Ives, S.E., Engler, M.J., Looper, M.L., Anderson, R.C., Nisbet, D.J. 2006. Seasonal shedding of Escherichia coli O157:H7 in ruminants: A new hypothesis. Foodborne Pathogens and Disease. 3(4):413-421.

Escherichia Coli O157:h7 and Salmonella in Water and Soil from Tall Fescue Paddocks - (Peer Reviewed Journal)

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.

Estrous Behavior and Initiation of Estrous Cycles in Postpartum Brahman Influenced Cows after Treatment with Progesterone and Prostaglandin F2a - (Peer Reviewed Journal)

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.

Influence of Stocking Rate and Steroida Implants of Growth Performance and Rate of Recovery from Heat Stress for Steers Grazing Endophyte-Infected Kentucky 31 Tall Fescue - (Peer Reviewed Journal)

Aiken, G.E., Tabler, S.F., Looper, M.L., Brauer, D.K., Strickland, J.R., Shrick, F.N. 2006. Influence of Stocking Rate and Steroida Implants of Growth Performance and Rate of Recovery from Heat Stress for Steers Grazing Endophyte-Infected Kentucky 31 Tall Fescue. Journal of Animal Science. 84:1626-1632.

Prevalence of Escherichia Coli O157:h7 and Salmonella in Beef Steers Grazing Different Forage Diets - (Peer Reviewed Journal)

Looper, M.L., Edrington, T.S., Flores, R., Rosenkrans, Jr, C.F., Nihsen, M.E., Aiken, G.E. 2006. Prevalence of Escherichia coli O157:H7 and salmonella in beef steers grazing different forage diets. Letters in Applied Microbiology. 42:583-588.

Stocking Rate and Implantation Effects on Weight Gain and Recovery from Heat Stress for Yearling Steers Grazed on Endophyte-Infected Tall Fescue - (Abstract)

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.

Growth, Feedlot Performance, and Carcass Characteristics of Angus and Charolais-Sired Calves Castrated at Birth Or Weaning - (Experiment Station)

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.

Effects of Feeding Endophyte-Infected Tall Fescue Seed to Sheep Experimentally Infected with Escherichia Coli O157:h7 - (Proceedings/Symposium)

Looper, M.L., Edrington, T.S., Rosenkrans, Jr, C.F., Burke, J.M., Flores, R., Callaway, T.R., Aiken, G.E. 2005. Effects of feeding endophyte-infected tall fescue seed to sheep experimentally infected with Escherichia coli O157:H7. Western Section of Animal Science Proceedings. 56:213-216.

Effects of Feeding Endophyte-Infected Tall Fescue Seed to Sheep Experimentally Infected with Escherichia Coli O157:h7 - (Abstract)

Looper, M.L., Edrington, T.S., Rosenkrans, C.F., Burke, J.M., Flores, R., Callaway, T.R., Aiken, G.E. 2005. Effects of feeding endophyte-infected tall fescue seed to sheep experimentally infected with Escherichia coli O157:H7. Western Section of Animal Science Proceedings. 56:213.

Relationships Between Calf Serum Metabolites at Feedlot Entry and Subsequent Carcass Characteristics in Brangus-Crossbred Calves - (Proceedings/Symposium)

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.

Effects of Forage Cultivar and Anthelmintic on Steer Responses to Immune Challenge - (Proceedings/Symposium)

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.

Quantity, Quality, and Ergovaline Concentrations of Burned Stockpiled Tall Fescue - (Proceedings/Symposium)

Looper, M.L., Aiken, G.E., Tabler, S.F., Flores, R., Rosenkrans, C.F., Miesner, J.R. 2005. Quantity, quality, and ergovaline concentrations of burned stockpiled tall fescue. American Forage and Grassland Conference Proceedings. 14:196-200.

Effects of Harvest Frequency and Nitrogen Fertilization on Quantity and Quality of Stockpiled Comon Bermudagrass - (Proceedings/Symposium)

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.

Influence of Nutrient Supplementation on Body Weight and Condition, and Pregnancy of Market Beef Cows Grazing Stockpiled and Spring-Growth Tall Fescue - (Peer Reviewed Journal)

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.

Temporal Changes in Rectal Temperature and Serum Prolactin O Weaned Braham-Influenced Heifers Grazing Eendophyte-Infected Tall Fescue Pasture - (Other)

Aiken, G.E., Looper, M.L. 2005. Temporal Changes in Rectal Temperature and Serum Prolactin O Weaned Braham-Influenced Heifers Grazing Eendophyte-Infected Tall Fescue Pasture. Journal of Animal Science Supplement. 83(1):261.

Supplementation May Increase Pregnancy and Profit of Cull Cows - (Other)

Looper, M.L., Aiken, G.E. 2005. Supplementation may increase pregnancy and profit of cull cows. Arkansas Cattle Business. 40(2):28.

Strategic Supplementation with Ground Corn for Yearling Steers Grazing Bermudagrass - (Peer Reviewed Journal)

Aiken, G.E., Looper, M.L., Tabler, S.F., Brauer, D.K. 2005. Strategic Supplementation with Ground Corn for Yearling Steers Grazing Bermudagrass. Forage and Grazinglands. Available: http://www.plantmanagementnetwork.org/fg

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 - (Abstract)

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.

Incidence of Fecal Shedding of E. Coli 0157:h7 and Salmonella in Stocker Steers Grazing Different Forages - (Abstract)

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.

Effects of Time of Castration on Growth, Feedlot Performance, and Carcass Characteristics of Angus and Charolais-Sired Calves - (Abstract)

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.

Recovery of Yearling Calves from Fescue Toxicosis - (Proceedings/Symposium)

Aiken, G.E., Looper, M.L., Tabler, S.F., Strickland, J.R. 2005. Recovery of yearling calves from fescue toxicosis. International Grasslands Congress. F.P. O'Mara et al (ed). P. 305. 305 Wageningen Academic Publishers.

Incidence of Foodborne Pathogens and Antimicrobial Susceptibility of Fecal Coliforms in Stocker Calves Fed Ionophore - (Proceedings/Symposium)

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.

Use of Novel Endophyte-Infected Tall Fescue for Cow-Calf Production in Arkansas - (Abstract)

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.

Calving Rate and Production Responses of Long-Term Exposure to Endophyte-Infected Tall Fescue - (Abstract)

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.

Examination of Heat Stress and Stage of Lactation (Early Vs Late) on Fecal Shedding of E. Coli O157:h7 and Salmonella in Dairy Cattle - (Peer Reviewed Journal)

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.

Incidence of Foodborne Pathogens and Antimicrobial Susceptibility of Fecal Coliforms in Stocker Calves Fed Ionophore - (Abstract)

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.

Physiological Indicators of Growth Are Influenced by Supplementation and Steroid Implantation in Steers - (Abstract)

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.

Management of Beef Cattle to Alleviate Fescue Toxicosis. - (Abstract)

Aiken, G.E., Tabler, S.F., Looper, M.L., Brauer, D.K., Strickland, J.R. 2004. Management of beef cattle to alleviate fescue toxicosis.. International Neotyphodium Grass Interactions. 5/23/2004, Paper 410

Effects of the Ergot Alkaloids Dihydroergotamine, Ergonovine, and Ergotamine on Growth of Escherichia Coli O157:h7 and Salmonella in Vitro - (Proceedings/Symposium)

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.

Supplementation Influences Milk Yield and Milk Components of Cows Grazing Stockpiled Tall Fescue - (Proceedings/Symposium)

Looper, M.L., Aiken, G.E., Flores, R., Rosenkrans, Jr, C.F., Brauer, D.K. 2004. Supplementation influences milk yield and milk components of cows grazing stockpiled tall fescue. International Neotyphodium Grass Interactions. #502.

Effects of Tree Configuration on the Understory Productivity of a Loblolly Pine-Forage Agroforestry Practice - (Abstract)

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.

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 - (Peer Reviewed Journal)

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.

On-Farm Management Decisions to Improve Beef Quality of Market Dairy Cows - (Peer Reviewed Journal)

Rogersei, C.A., Fitzgerald, A.C., Carr, M.A., Covey, B.R., Thomas, J.D., Looper, M.L. 2004. On-farm management decisions to improve beef quality of market dairy cows. Journal of Dairy Science. 87:1558-1564.

Effects of Diet on Performance, Reproduction, and Economics of Market Cows Grazing Stockpiled Fescue - (Abstract)

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.

Antimicrobial Resistance and Serotype Prevalence of Salmonella Isolated from Dairy Cattle in the Southwestern United States - (Peer Reviewed Journal)

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.

Influence of Progesterone on Estrous Characteristics and Pregnancy Rate of Grazing Beef Cows - (Abstract)

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.

Research Round-Up - (Other)

Looper, M.L. 2003. Research round-up. Sebastian County Extension Newsletter. pp 1-2.

Influence of Bovine Somatotropin on Estrous Characteristics and Reproduction of Holstein Cows During Summer Months - (Peer Reviewed Journal)

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.

Looking into the Future with Ultrasound Technology - (Popular Publication)

AIKEN, G.E., LOOPER, M.L. 2003. LOOKING INTO THE FUTURE WITH ULTRASOUND TECHNOLOGY. Arkansas Cattle Business. 39(10):24-25.

Influence of Fever and Metabolic Disorders on Milk Yield and Reproduction in Postpartum Cows - (Peer Reviewed Journal)

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.

Antimicrobial Susceptibility and Factors Affecting the Shedding of E. Coli O157:h7 and Salmonella in Dairy Cattle - (Peer Reviewed Journal)

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.

Escherichia Coli and Salmonella in Beef Cattle Grazing Tall Fescue - (Other)

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.

Growth Performance of Stocker Steers Grazing Bermudagrass - (Experiment Station)

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.

Serotype Prevalence and Anti-Microbial Resistance of Salmonella Isolated from Dairy Cattle in the Southwestern United States - (Abstract) - (23-Jun-03)

Marketing Cows for Increased Profitability - (Proceedings/Symposium)

LOOPER, M.L., ROGERS, C.A., FITZGERALD, A.C. 2003. MARKETING COWS FOR INCREASED PROFITABILITY. Western Dairy Management Conference. p. 43-50.

Incidence of Fecal Shedding of Escherichia Coli and Salmonella Spp. in Beef Cattle Grazing Endophyte-Infected and Non-Infected Tall Fescue - (Abstract)

LOOPER, M.L., AIKEN, G.E., EDRINGTON, T.S., ROSENKRANS JR, C.F., ELDER, R.O. 2003. INCIDENCE OF FECAL SHEDDING OF ESCHERICHIA COLI AND SALMONELLA SPP. IN BEEF CATTLE GRAZING ENDOPHYTE-INFECTED AND NON-INFECTED TALL FESCUE. AMERICAN SOCIETY OF ANIMAL SCIENCE SOUTHERN SECTION MEETING. 81(Suppl. 2):23.

Influence of Steroid Implantation and Supplementation on Performance and Lactate Dehydrogenase Activity in Steers Grazing Bermudagrass - (Abstract)

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.

Animal and Plant Responses to Stocking - (Abstract)

AIKEN, G.E., LOOPER, M.L. 2003. ANIMAL AND PLANT RESPONSES TO STOCKING. AMERICAN SOCIETY OF ANIMAL SCIENCE SOUTHERN SECTION MEETING. 81(SUPPL. 2):20.

E. Coli 0157:h7 in Dairy Cattle: Anti-Microbial Susceptibility and Factors Affecting Shedding - (Abstract) - (20-Aug-02)