Projects

EVALUATION, DEVELOPMENT, AND USE OF GENETIC RESOURCES TO IMPROVE LIFE-CYCLE EFFICIENCY OF BEEF CATTLE AND SHEEP Appropriated (D)   Accession Number: 412255

IMPROVE NUTRIENT MANAGEMENT AND EFFICIENCY IN CATTLE Appropriated (D)   Accession Number: 412409

Publications

Nutritional requirements and their relationship to relevant bio-economic traits of the cow herd - (Literature)

Ferrell, C.L., Jenkins, T.G. 2008. Nutritional requirements and their relationship to relevant bio-economic traits of the cow herd. In: Proceedings of the VI Simposio de Producao de Gado de Corte (VI Symposium of Beef Cattle Production), May 24-26, 2008, Vicosa, Brazil.

Estimates of genetic variation for feed intake and other characteristics in growing beef cattle - (Abstract)

Rolfe, K.M., Nielsen, M.K., Ferrell, C.L., Jenkins, T.G. 2008. Estimates of genetic variation for feed intake and other characteristics in growing beef cattle [abstract]. Journal of Animal Science. 86 (E-Supplement 2):546.

Impact of simulated selection for feed efficiency and length of breeding season on beef life cycle performance - (Abstract)

Williams, C.B., Jenkins, T.G. 2008. Impact of simulated selection for feed efficiency and length of breeding season on beef life cycle performance [abstract]. Journal of Animal Science. 86(E-Supplement 2):254-255.

Biological type and production efficiency: Where have we been and where are we going - (Proceedings/Symposium)

Ferrell, C.L., Jenkins, T.G. 2007. Biological type and production efficiency: Where have we been and where are we going. In: Proceedings of the IV World Brangus Congress, April 23-28, 2007, Salto, Uruguay, 2007 CDROM.

Daily dry matter intake to sustain body weight of mature, nonlactating, nonpregnant cows - (Peer Reviewed Journal)

Jenkins, T.G., Ferrell, C.L. 2007. Daily dry matter intake to sustain body weight of mature, nonlactating, nonpregnant cows. Journal of Animal Science. 85(7):1787-1792.

IMPACT OF SELECTION FOR FEED EFFICIENCY ON BEEF LIFE CYCLE PERFORMANCE - (Proceedings/Symposium)

Williams, C.B., Jenkins, T.G. 2006. Impact of selection for feed efficiency on beef life cycle performance. In: Proceedings of the 8th World Congress of Genetics Applied in Livestock Production, August 13-18, 2006, Belo Horizonte, MD Brazil, 2006 CDROM.

MATCHING BEEF GENETICS WITH PRODUCTION ENVIRONMENT - (Proceedings/Symposium)

Jenkins, T.G., Ferrell, C.L. 2006. Matching beef genetics with production environment. In: Proceedings of the Beef Improvement Federation 38th Annual Research Symposium and Annual Meeting, April 18-21, 2006, Choctaw, Mississippi. p. 41-46.

DECISION SUPPORT MODEL OF NUTRIENT EXCRETION IN BEEF FEEDLOTS - (Abstract)

Williams, C.B., Jenkins, T.G. 2006. Decision support model of nutrient excretion in beef feedlots [abstract]. Journal of Animal Science 84(Suppl. 1):291.

USING SIMULATION MODELS TO PREDICT FEED INTAKE: PHENOTYPIC AND GENETIC RELATIONSHIPS BETWEEN OBSERVED AND PREDICTED VALUES IN CATTLE - (Peer Reviewed Journal)

Williams, C.B., Bennett, G.L., Jenkins, T.G., Cundiff, L.V., Ferrell, C.L. 2006. Using simulation models to predict feed intake: phenotypic and genetic relationships between observed and predicted values in cattle. Journal of Animal Science. 84(6):1310-1316.

EFFICIENCY OF FEED UTILIZATION DURING THE PREWEANING PERIOD AMONG TROPICALLY ADAPTED CATTLE - (Proceedings/Symposium)

Jenkins, T.G., Ferrell, C.L. 2005. Efficiency of feed utilization during the preweaning period among tropically adapted cattle. Symposium on Tropically Adapted Breeds, Southern Cooperative Series Bulletin 405, American Society of Animal Science Southern Section Meeting, p. 162-166.

FEED UTILIZATION AND PERFORMANCE OF CROSSBRED TROPICALLY ADAPTED CATTLE - (Proceedings/Symposium)

Ferrell, C.L., Jenkins, T.G., Freetly, H.C. 2005. Feed utilization and performance of crossbred tropically adapted cattle. Symposium on Tropically Adapted Breeds, Southern Cooperative Series Bulletin 405, American Society of Animal Science Southern Section Meeting, p. 144-153.

EFFECTS OF VARYING ENERGY INTAKE AND SIRE BREED ON DURATION OF POSTPARTUM ANESTRUS, INSULIN LIKE GROWTH FACTOR-1, AND GROWTH HORMONE IN MATURE CROSSBRED COWS - (Peer Reviewed Journal)

Roberts, A.J., Klindt, J.M., Jenkins, T.G. 2005. Effects of varying energy intake and sire breed on duration of postpartum anestrus, insulin like growth factor-1, and growth hormone in mature crossbred cows. Journal of Animal Science 83(7):1705-1714.

USING SIMULATION MODELS TO PREDICT FEED INTAKE: PHENOTYPIC AND GENETIC RELATIONSHIPS BETWEEN OBSERVED AND PREDICTED VALUES - (Abstract)

Williams, C.B., Bennett, G.L., Jenkins, T.G., Cundiff, L.V., Ferrell, C.L. 2005. Using simulation models to predict feed intake: Phenotypic and genetic relationships between observed and predicted values [abstract]. Journal of Animal Science. 83(Supplement 1):13-14.

ESTIMATES OF GENETIC PARAMETERS FOR FEED INTAKE, FEEDING BEHAVIOR, AND DAILY GAIN IN COMPOSITE RAM LAMBS - (Peer Reviewed Journal)

Cammack, K.M., Leymaster, K.A., Jenkins, T.G., Nielsen, M.K. 2005. Estimates of genetic parameters for feed intake, feeding behavior, and daily gain in composite ram lambs. Journal of Animal Science. 83:777-785.

NUTRITIONALLY ALTERING WEIGHT GAIN PATTERNS OF PREGNANT HEIFERS AND YOUNG COWS CHANGES THE TIME THAT FEED RESOURCES ARE OFFERED WITHOUT ANY DIFFERENCES IN PRODUCTION - (Peer Reviewed Journal)

Freetly, H.C., Ferrell, C.L., Jenkins, T.G. 2005. Nutritionally altering weight gain patterns of pregnant heifers and young cows changes the time that feed resources are offered without any differences in production. Journal of Animal Science. 83:916-926.

MODERATELY ALTERING WEIGHT GAIN PATTERNS OF SECOND PARITY COWS THROUGH NUTRITION CHANGES THE TIME THAT FEED RESOURCES ARE OFFERED WITHOUT ANY DIFFERENCES IN PRODUCTION - (Abstract)

Freetly, H.C., Ferrell, C.L., Jenkins, T.G. 2005. Moderately altering weight gain patterns of second parity cows through nutrition changes the time that feed resources are offered without any differences in production [abstract]. Journal of Animal Science 83(Suppl. 2):90-91.

FEED UTILIZATION AND PERFORMANCE OF TROPICALLY ADAPTED CATTLE - (Abstract)

Ferrell, C.L., Jenkins, T.G., Freetly, H.C. 2005. Feed utilization and performance of tropically adapted cattle [abstract]. Journal of Animal Science 83(Suppl. 2): 28.

COW EFFICIENCY DURING THE PREWEANING PERIOD OF TROPICALLY ADAPTED CATTLE - (Abstract)

Jenkins, T.G., Ferrell, C.L. 2005. Cow efficiency during the preweaning period of tropically adapted cattle [abstract]. Journal of Animal Science 83(Suppl. 2)29. Paper No. 112.

GENETIC ADAPTATION OF LIVESTOCK: THE POWER OF CHANGE - (Proceedings/Symposium)

Jenkins, T.G. 2004. Genetic adaptation of livestock: The power of change. Proceedings 1st Holt/Cat Symposium on Excellence in Ranch Management. October 7-8, 2004, Kingsville, TX. pp. 34-41.

PREWEANING EFFICIENCY FOR MATURE COWS OF BREED CROSSES FROM TROPICALLY ADAPTED BOS INDICUS AND BOS TAURUS AND NON-ADAPTED BOS TAURUS BREEDS - (Peer Reviewed Journal)

Jenkins, T.G., Ferrell, C.L. 2004. Preweaning efficiency for mature cows of breed crosses from tropically adapted Bos indicus and Bos taurus and non-adapted Bos taurus breeds. Journal of Animal Science. 82:1876-1881.

BEEF COW EFFICIENCY - (Other) - (01-Aug-03)

ASSOCIATIONS AMONG CIRCULATING CONCENTRATIONS OF IGF-1 AND GH DURING THE POSTPARTUM PERIOD WITH RESUMPTION OF ESTRUS, CALF WEIGHTS, AND MILK PRODUCTION IN MATURE CROSSBRED COWS FED VARYING LEVELS OF ENERGY INTAKE - (Abstract)

ROBERTS, A.J., JENKINS, T.G. ASSOCIATIONS AMONG CIRCULATING CONCENTRATIONS OF IGF-1 AND GH DURING THE POSTPARTUM PERIOD WITH RESUMPTION OF ESTRUS, CALF WEIGHTS, AND MILK PRODUCTION IN MATURE CROSSBRED COWS FED VARYING LEVELS OF ENERGY INTAKE. JOURNAL OF ANIMAL SCIENCE SUPPLEMENT ABSTRACT #401. 2003. v. 81(SUPPL. 1). p. 101.

ASSOCIATIONS AMONG CIRCULATING CONCENTRATIONS OF IGF-1 AND GH DURING THE POSTPARTUM PERIOD WITH RESUMPTION OF ESTRUS, CALF WEIGHTS, AND MILK PRODUCTION IN MATURE CROSSBRED COWS FED VARYING LEVELS OF ENERGY INTAKE - (Proceedings/Symposium)

ROBERTS, A.J., JENKINS, T.G. ASSOCIATIONS AMONG CIRCULATING CONCENTRATIONS OF IGF-1 AND GH DURING THE POSTPARTUM PERIOD WITH RESUMPTION OF ESTRUS, CALF WEIGHTS, AND MILK PRODUCTION IN MATURE CROSSBRED COWS FED VARYING LEVELS OF ENERGY INTAKE. WESTERN SECTION OF ANIMAL SCIENCE PROCEEDINGS. 2003. v. 54. p. 288-290.

INFLUENCE OF SIRE BREED ON RESIDUAL FEED INTAKE AS AN INDICATOR OF EFFICIENCY IN STEERS - (Abstract)

FERRELL, C.L., JENKINS, T.G., FREETLY, H.C. INFLUENCE OF SIRE BREED ON RESIDUAL FEED INTAKE AS AN INDICATOR OF EFFICIENCY IN STEERS. JOURNAL OF ANIMAL SCIENCE. 2003. v. 81(SUPP.1): ABSTRACT P. 107-108.

THE HISTORY OF ENERGETIC EFFICIENCY RESEARCH: WHERE HAVE WE BEEN AND WHERE ARE WE GOING? - (Peer Reviewed Journal)

JOHNSON, D.E., FERRELL, C.L., JENKINS, T.G. THE HISTORY OF ENERGETIC EFFICIENCY RESEARCH: WHERE HAVE WE BEEN AND WHERE ARE WE GOING?. JOURNAL OF ANIMAL SCIENCE. 2003. v. 81(E. Suppl.1). p. E27-E38.

A DYNAMIC MODEL OF METABOLIZABLE ENERGY UTILIZATION IN GROWING AND MATURE CATTLE. I. METABOLIZABLE ENERGY UTILIZATION FOR MAINTENANCE AND SUPPORT METABOLISM - (Peer Reviewed Journal)

WILLIAMS, C.B., JENKINS, T.G. A DYNAMIC MODEL OF METABOLIZABLE ENERGY UTILIZATION IN GROWING AND MATURE CATTLE. I. METABOLIZABLE ENERGY UTILIZATION FOR MAINTENANCE AND SUPPORT METABOLISM. JOURNAL OF ANIMAL SCIENCE. 2003. v. 81. p. 1371-1381.

A DYNAMIC MODEL OF METABOLIZABLE ENERGY UTILIZATION IN GROWING AND MATURE CATTLE. II. METABOLIZABLE ENERGY UTILIZATION FOR GAIN - (Peer Reviewed Journal)

WILLIAMS, C.B., JENKINS, T.G. A DYNAMIC MODEL OF METABOLIZABLE ENERGY UTILIZATION IN GROWING AND MATURE CATTLE. II. METABOLIZABLE ENERGY UTILIZATION FOR GAIN. JOURNAL OF ANIMAL SCIENCE. 2003. v. 81. p. 1382-1389.

A DYNAMIC MODEL OF METABOLIZABLE ENERGY UTILIZATION IN GROWING AND MATURE CATTLE. III. MODEL EVALUATION - (Peer Reviewed Journal)

WILLIAMS, C.B., JENKINS, T.G. A DYNAMIC MODEL OF METABOLIZABLE ENERGY UTILIZATION IN GROWING AND MATURE CATTLE. III. MODEL EVALUATION. JOURNAL OF ANIMAL SCIENCE. 2003. v. 81. p. 1390-1398.

INFLUENCE OF PRIOR NUTRITIONAL TREATMENT ON RESIDUAL FEED INTAKE AS AN INDICATOR OF EFFICIENCY - (Peer Reviewed Journal)

FERRELL, C.L., JENKINS, T.G., FREETLY, H.C. INFLUENCE OF PRIOR NUTRITIONAL TREATMENT ON RESIDUAL FEED INTAKE AS AN INDICATOR OF EFFICIENCY. JOURNAL OF ANIMAL SCIENCE. 2003. v. 81(Suppl. 2): Abstract p. 99.

EFFECTS OF VARYING ENERGY INTAKE AND SIRE BREED ON DURATION OF POSTPARTUM ANESTRUS, INSULIN-LIKE GROWTH FACTOR, AND GROWTH HORMONE IN MATURE CROSSBRED COWS - (Popular Publication)

ROBERTS, A.J., JENKINS, T.G. EFFECTS OF VARYING ENERGY INTAKE AND SIRE BREED ON DURATION OF POSTPARTUM ANESTRUS, INSULIN-LIKE GROWTH FACTOR, AND GROWTH HORMONE IN MATURE CROSSBRED COWS. RESEARCH UPDATE FOR FORT KEOGH LIVESTOCK AND RANGE RESEARCH LABORATORY. p. 48. 2003.

BEEF COW EFFICIENCY - REVISITED - (Proceedings/Symposium)

Jenkins, T.G., Ferrell, C.L. 2002. Beef cow efficiency - revisited. Beef Improvement Federation Proceedings. pp. 32-43.

EFFECTS OF VARYING ENERGY INTAKE AND SIRE BREED ON DURATION OF POSTPARTUM ANESTRUS, IGF-1 AND GH IN MATURE CROSSBRED COWS - (Proceedings/Symposium)

Roberts, A.J., Jenkins, T.G. 2002. Effects of varying energy intake and sire breed on duration of postpartum anestrus, IGF-1 and GH in mature crossbred cows. Western Section of Animal Science Proceedings. 53:454-456.

EFFECTS OF VARYING ENERGY INTAKE AND SIRE BREED ON DURATION OF POSTPARTUM ANESTRUS, IGF-1 AND GH IN MATURE CROSSBRED COWS - (Abstract)

ROBERTS, A.J., JENKINS, T.G. 2002. EFFECTS OF VARYING ENERGY INTAKE AND SIRE BREED ON DURATION OF POSTPARTUM ANESTRUS, IGF-1 AND GH IN MATURE CROSSBRED COWS [abstract].JOURNAL OF ANIMAL SCIENCE SUPPLEMENT 80(Supplement 2):132.Abstract #111.

EFFECTS OF VARYING ENERGY INTAKE AND SIRE BREED ON DURATION OF POSTPARTUM ANESTRUS, IGF-1 AND GH IN MATURE CROSSBRED COWS - (Proceedings/Symposium)

ROBERTS, A.J., JENKINS, T.G. EFFECTS OF VARYING ENERGY INTAKE AND SIRE BREED ON DURATION OF POSTPARTUM ANESTRUS, IGF-1 AND GH IN MATURE CROSSBRED COWS. WESTERN SECTION OF ANIMAL SCIENCE PROCEEDINGS. 2002. 53:454-456.

EFFICIENCY OF FEED UTILIZATION OF DIVERSE BIOLOGICAL TYPES OF CATTLE - (Proceedings/Symposium)

JENKINS, T.G., FERRELL, C.L. EFFICIENCY OF FEED UTILIZATION OF DIVERSE BIOLOGICAL TYPES OF CATTLE. WORLD CONGRESS OF GENETICS APPLIED IN LIVESTOCK PRODUCTION. 2002. CD-ROM COMMUNICATION N° 10-23.

EFFICIENCY OF FEED UTILIZATION OF DIVERSE BIOLOGICAL TYPES OF CATTLE. - (Proceedings/Symposium)

JENKINS,T.G., FERRELL,C.L., EFFICIENCY OF FEED UTILIZATION OF DIVERSE BIOLOGICAL TYPES OF CATTLE. 7th WORLD CONGRESS OF GENETICS APPLIED IN LIVESTOCK PRODUCTION, MONTPELLIER, FRANCE. 2002. BOOK OF ABSTRACTS, P. 173.

ESTIMATES OF GENETIC PARAMETERS FOR DAILY GAIN, FEED INTAKE, AND BEHAVIOR TRAITS IN RAM LAMBS OF A COMPOSITE POPULATION. - (Proceedings/Symposium)

Leymaster, K.A., Cammack, K.M., Nielsen, M.K., Jenkins, T.G. 2002. Estimates of genetic parameters for daily gain, feed intake, and behavior traits in ram lambs of a composite population. Proceedings of the 7th World Congress of Genetics Applied in Livestock Production. CD-ROM Communication No. 10-09. Montpellier, France.

NUTRITIONALLY INDUCED GROWTH PATTERN CHANGES OF PREGNANT HEIFERS AND SUBSEQUENT CHANGES IN BODY WEIGHTS AND DRY MATTER INTAKE - (Abstract)

Freetly, H.C., Ferrell, C.L., Jenkins, T.G. 2002. Nutritionally induced growth pattern changes of pregnant heifers and subsequent changes in body weights and dry matter intake [abstract]. Journal of Animal Science. 80(Suppl. 1):41-42.

GENETIC PARAMETERS FOR GROWTH, FEED INTAKE, AND FEEDING BEHAVIOR IN A COMPOSITE POPULATION OF SHEEP - (Peer Reviewed Journal)

Cammack, K.M., Nielsen, M.K., Leymaster, K.A., Jenkins, T.G. 2002. Genetic parameters for growth, feed intake, and feeding behavior in a composite population of sheep. Journal of Animal Science. 80(Suppl. 2):44. (Abstract No. 31)