Publications |
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Investigation of country bias in international genetic evaluations using full brother information
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Powell, R.L., Sanders, A.H., Norman, H.D. 2008. Investigation of country bias in international genetic evaluations using full-brother information. Journal of Dairy Science. 91(7):2885-2892.
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Breed Composition of the United States Dairy Cattle Herd
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Powell, R.L., Norman, H.D., Hutchison, J.L. 2008. Breed Composition of the United States Dairy Cattle Herd. Journal of Dairy Science. 91(E-Suppl. 1):7(abstr. T17).
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Consistency of Maturity Rate for Milk Yield Across Countries and Generations
- (Peer Reviewed Journal)
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Norman, H.D., Wright, J.R., Powell, R.L., Van Raden, P.M., Miglior, F., De Jong, G. Consistency of Maturity Rate for Milk Yield Across Countries and Generations. Journal of Dairy Science. 90(8):3937-3944.
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Relationship of gestation length to stillbirth
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Powell, R.L., Norman, H.D., Wright, J.R. 2007. Relationship of gestation length to stillbirth. Journal of Dairy Science. 90(Suppl. 1):16(abstr. M39).
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Is there a need for different genetics in dairy grazing systems?
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Norman, H.D., Wright, J.R., Powell, R.L. 2006. Is there a need for different genetics in dairy grazing systems?. Proceeding of 6th Mid-Atlantic Dairy Grazing Conference, October 31 - November 1, Goldsboro, North Carolina, p. 1-5.
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GENETIC DIFFERENCES BETWEEN MATURITY RATES OF DAUGHTERS OF HOLSTEIN BULLS IN THE NETHERLANDS AND UNITED STATES
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Norman, H.D., Wright, J.R., Powell, R.L., Van Raden, P.M., De Jong, G. 2006. Genetic differences between maturity rates of daughters of Holstein bulls in the Netherlands and United States [abstract]. Journal of Dairy Science. 89(Suppl. 1):16-17(abstr. M29).
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DOMESTIC VERSUS IMPORTED ARTIFICIAL-INSEMINATION SEMEN FOR HOLSTEIN GRAZIERS IN THE UNITED STATES
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Norman, H.D., Wright, J.R., Powell, R.L. 2006. Domestic versus imported artificial-insemination semen for Holstein graziers in the United States [abstract]. Journal of Dairy Science. 89(Suppl. 1):136(abstr. 157).
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IMPACT OF ESTIMATED GENETIC CORRELATIONS ON INTERNATIONAL EVALUATIONS TO PREDICT MILK TRAITS
- (Peer Reviewed Journal)
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Powell, R.L., Sanders, A.H., Norman, H.D. 2005. Impact of estimated genetic correlations on international evaluations to predict milk traits. Journal of Dairy Science. 88(10):3679-3687.
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IMPACT OF MATURITY RATE OF DAUGHTERS ON GENETIC RANKING OF HOLSTEIN BULLS
- (Peer Reviewed Journal)
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Norman, H.D., Wright, J.R., Powell, R.L., Van Raden, P.M. 2005. Impact of maturity rate of daughters on genetic ranking of Holstein bulls. Journal of Dairy Science. 88(9):3337-3345.
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ACCURACY AND STABILITY OF NATIONAL AND INTERNATIONAL SOMATIC CELL SCORE EVALUATIONS
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Powell, R.L., Sanders, A.H., Norman, H.D. 2005. Accuracy and stability of national and international somatic cell score evaluations. Journal of Dairy Science. 88(7):2624-2631.
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GENETIC ALTERNATIVES FOR DAIRY PRODUCERS WHO PRACTISE GRAZING
- (Proceedings/Symposium)
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Norman, H.D., Wright, J.R., Powell, R.L. 2005. Genetic alternatives for dairy producers who practise grazing. In: Proceedings of Satellite Workshop of the XXth International Grassland Congress, July 3-6, 2005, Cork, Ireland. p. 176.
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COMPARISON OF MATURITY RATE FOR BULL DAUGHTERS IN THE UNITED STATES AND CANADA
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Norman, H.D., Wright, J.R., Powell, R.L., Van Raden, P.M., Miglior, F. 2005. Comparison of maturity rate for bull daughters in the United States and Canada [abstract]. Journal of Dairy Science. 88(Suppl. 1):10-11.
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MAJOR ADVANCES IN GENETIC EVALUATION TECHNIQUES
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Powell, R.L., Norman, H.D. 2006. Major advances in genetic evaluation techniques. Journal of Dairy Science. 89(4):1337-1348.
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EFFECTIVENESS OF NATIONAL AND REGIONAL SIRE EVALUATIONS IN PREDICTING FUTURE DAUGHTER MILK YIELD
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Norman, H.D., Van Raden, P.M., Powell, R.L., Wright, J.R., Verboort, W.R. 2005. Effectiveness of national and regional sire evaluations in predicting future daughter milk yield. Journal of Dairy Science. 88(2):812-826.
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GENETIC PROGRAMS FOR DAIRY CATTLE IN THE UNITED STATES
- (Review Article)
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Powell, R.L. 2004. Programas geneticos para el ganado lechero en Estados Unidos [Genetic programs for dairy cattle in the United States]. Proceedings of the Conferencia Internacional sobre Ganado Lechero [International Conference on Dairy Cattle], July 14-16, 2004, Guadalajara, Mexico. p. 123-132.
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STABILITY OF EVALUATIONS FOR ACTIVE AI BULLS
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Powell, R.L., Sanders, A.H., Norman, H.D. 2004. Stability of genetic evaluations for active artificial insemination bulls. Journal of Dairy Science. 87(8):2614-2620.
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ACCURACY AND STABILITY OF NATIONAL AND INTERNATIONAL SOMATIC CELL SCORE EVALUATIONS
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Powell, R.L., Sanders, A.H., Norman, H.D. 2004. Accuracy and stability of national and international somatic cell score evaluations [abstract]. Journal of Dairy Science. 87(Suppl. 1):87-88.
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GENETIC RELATIONSHIPS OF MILK YIELD FOR DIFFERENT PARITIES BETWEEN BULLS AND THEIR SONS
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Norman, H.D., Powell, R.L., Wright, J.R., VanRaden, P.M. 2004. Genetic relationships of milk yield for different parities between bulls and their sons [abstract]. Journal of Dairy Science. 87(Suppl. 1):413.
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MERIT OF OBTAINING GENETIC EVALUATIONS OF MILK YIELD FOR EACH PARITY ON HOLSTEIN BULLS
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Norman, H.D., Wright, J.R., Powell, R.L., VanRaden, P.M. 2004. Merit of obtaining genetic evaluations of milk yield for each parity on Holstein bulls [abstract]. Journal of Dairy Science. 87(Suppl. 1):2.
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IMPACT OF PARTICIPATION IN SOMATIC CELL COUNT TESTING ON HERD AVERAGE SOMATIC CELL SCORE
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Norman, H.D., Sanders, A.H., Miller, R.H., Powell, R.L. 2004. Impact of participation in somatic cell count testing on herd average somatic cell score [abstract]. Journal of Dairy Science. 87(Suppl. 1):280-281.
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ACCURACY OF FOREIGN DAIRY BULL EVALUATIONS IN PREDICTING US EVALUATIONS FOR YIELD
- (Peer Reviewed Journal)
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Powell, R.L., Sanders, A.H., Norman, H.D. 2004. Accuracy of foreign dairy bull evaluations in predicting United States evaluations for yield. Journal of Dairy Science. 87(8):2621-2626.
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STATE AND NATIONAL STANDARDIZED LACTATION AVERAGES BY BREED FOR COWS CALVING IN 2002
- (Government Publication)
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Powell, R.L., Sanders, A.H. 2004. State and national standardized lactation averages by breed for cows calving in 2002. Animal Improvement Programs Laboratory Research Report K2-02 (2-04). Available: http://aipl.arsusda.gov/publish/dhi/current/lacavx.html.
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ACCURACY OF FOREIGN DAIRY BULL EVALUATIONS IN PREDICTING US EVALUATIONS FOR YIELD
- (Proceedings/Symposium)
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Powell, R.L., Sanders, A.H., Norman, H.D. 2003. Accuracy of foreign dairy bull evaluations in predicting US evaluations for yield. International Bull Evaluation Service Bulletin 31:171-174.
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ACCURACY OF FOREIGN DAIRY BULL EVALUATIONS IN PREDICTING US EVALUATIONS FOR YIELD
- (Abstract)
- (22-Jun-03)
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PERFORMANCE OF HOLSTEINS THAT ORIGINATED FROM EMBRYO TRANSFER OR MULTIPAROUS BIRTHS
- (Abstract)
- (22-Jun-03)
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PERFORMANCE OF HOLSTEIN CLONES IN THE UNITED STATES
- (Peer Reviewed Journal)
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Norman, H.D., Lawlor, T.J., Wright, J.R., Powell, R.L. 2004. Performance of Holstein clones in the United States. Journal of Dairy Science. 87(3):729-738.
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PROGENY TESTING AND SELECTION INTENSITY FOR HOLSTEIN BULLS IN DIFFERENT COUNTRIES
- (Peer Reviewed Journal)
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Powell, R.L., Norman, H.D., Sanders, A.H. 2003. Progeny testing and selection intensity for Holstein bulls in different countries. Journal of Dairy Science. 86(10):3386-3393.
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STATE AND NATIONAL STANDARDIZED LACTATION AVERAGES BY BREED FOR COWS CALVING IN 2001
- (Government Publication)
- (06-Mar-03)
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CORRELATION OF LONGEVITY EVALUATION WITH OTHER TRAIT EVALUATIONS FROM 14 COUNTRIES
- (Proceedings/Symposium)
- (02-Mar-03)
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PROPERTIES OF INTERNATIONAL LONGEVITY EVALUATIONS AND CORRELATIONS WITH OTHER TRAITS
- (Proceedings/Symposium)
- (26-May-02)
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STATE AND NATIONAL STANDARDIZED LACTATION AVERAGES BY BREED FOR COWS CALVING IN 2000
- (Government Publication)
- (01-Apr-02)
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