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USDA Genetic Evaluation Program for Dairy Goats

USDA Genetic Evaluation Program for Dairy Goats

USDA Genetic Evaluation Program for Dairy Goats . Why Genetic Evaluations?. A valuable tool for genetic selection Allows for comparison of animals in different environments Can include all of the information available for each animal Greatest impact on progress is from selection for males.

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755 views • 46 slides
Trait Selection When Culling U.S. Holsteins

Trait Selection When Culling U.S. Holsteins

Trait Selection When Culling U.S. Holsteins. H.D. Norman, J.L. Hutchison, J.R. Wright, and M.T. Kuhn Animal Improvement Programs Laboratory http://aipl.arsusda.gov Agricultural Research Service, USDA, Beltsville, MD, USA dnorman@aipl.arsusda.gov ? 301-504-8334. Changes in trait selection.

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217 views • 21 slides
Comparison of daughter performance of New Zealand and North American sires in US herds

Comparison of daughter performance of New Zealand and North American sires in US herds

Comparison of daughter performance of New Zealand and North American sires in US herds. Abstr . 714. H.D. Norman,* 1 J.R. Wright, 1 R.L. Powell, 1 T.J. Lawlor, 2 and C.W. Wolfe 3 1 Animal Improvement Programs, Agricultural Research Service, USDA, Beltsville , MD

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253 views • 14 slides
REGRESSION MODEL

REGRESSION MODEL

Relationship of Herd-Heritability with Sire Misidenti?cation and Entry Into a Proven Sire Lineup C. D. Dechow 1 , H. D. Norman* 2 , and N. R. Zwald 3

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135 views • 1 slides
ABSTRACT

ABSTRACT

W32. Derivation of Factors to Estimate Daily Milk Yield from One Milking of Cows Milked Three Times Daily M. M. Schutz* 1 , J. M. Bewley 2 , and H. D. Norman 3 , 1 Purdue University , West Lafayette, IN , 2 University of Kentucky , Lexington , 3 USDA-ARS , Beltsville, MD .

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118 views • 1 slides

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