JDS Track the topics, authors and articles important to you
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]
Author:
Keyword(s):
Year:  Vol:  Page: 


Reprint (PDF) Version of this Article
Similar articles found in:
JDS Online
PubMed
PubMed Citation
This Article has been cited by:
other online articles
Search PubMed for articles by:
VanRaden, P. M. || Wiggans, G. R.
Alert me when:
new articles cite this article
Download to Citation Manager

Journal of Dairy Science, Vol 74, Issue 8 2737-2746, Copyright 1991 by American Dairy Science Association


JOURNAL ARTICLE

Derivation, calculation, and use of national animal model information

P. M. VanRaden and G. R. Wiggans
Animal Improvement Programs Laboratory, USDA Beltsville, MD 20705-2350.

New terms and definitions were developed to explain national USDA genetic evaluations computed by an animal model. An animal's PTA combines information from its own records and records of all its relatives through a weighted average of 1) average of parents' evaluations, 2) half of its yield deviation, and 3) average across progeny of twice progeny evaluation minus mate's evaluation. Yield deviation is a weighted average of a cow's lactation yields minus solutions for management group, herd-sire, and permanent environmental effects. Bulls do not have yield deviations; however, a weighted adjusted for mates' merit can provide a useful, unregressed measure of daughter performance. Reliability is the squared correlation of predicted and true transmitting ability. An animal's parents, own records, and progeny each contribute amounts of information measured in daughter equivalents. Reliability of USDA evaluations then is computed as (total daughter equivalents)/(total daughter equivalents + 14).

This article has been cited by other articles:


Home page
J Anim SciHome page
G. Thaller, W. Kramer, A. Winter, B. Kaupe, G. Erhardt, and R. Fries
Effects of DGAT1 variants on milk production traits in German cattle breeds
J Anim Sci, August 1, 2003; 81(8): 1911 - 1918.
[Abstract] [Full Text] [PDF]


Home page
J Dairy SciHome page
H. D. Norman, R. L. Powell, J. R. Wright, and C. G. Sattler
Timeliness and Effectiveness of Progeny Testing Through Artificial Insemination
J Dairy Sci, April 1, 2003; 86(4): 1513 - 1525.
[Abstract] [Full Text] [PDF]


Home page
J Dairy SciHome page
G. Freyer, P. Sorensen, C. Kuhn, R. Weikard, and I. Hoeschele
Search for Pleiotropic QTL on Chromosome BTA6 Affecting Yield Traits of Milk Production
J Dairy Sci, March 1, 2003; 86(3): 999 - 1008.
[Abstract] [Full Text] [PDF]


Home page
J Dairy SciHome page
Ch. Kuhn, J. Bennewitz, N. Reinsch, N. Xu, H. Thomsen, C. Looft, G. A. Brockmann, M. Schwerin, C. Weimann, S. Hiendleder, G. Erhardt, I. Medjugorac, M. Forster, B. Brenig, F. Reinhardt, R. Reents, I. Russ, G. Averdunk, J. Blumel, and E. Kalm
Quantitative Trait Loci Mapping of Functional Traits in the German Holstein Cattle Population
J Dairy Sci, January 1, 2003; 86(1): 360 - 368.
[Abstract] [Full Text] [PDF]


Home page
J Dairy SciHome page
R. J. Spelman, C. A. Ford, P. McElhinney, G. C. Gregory, and R. G. Snell
Characterization of the DGAT1 Gene in the New Zealand Dairy Population
J Dairy Sci, December 1, 2002; 85(12): 3514 - 3517.
[Abstract] [Full Text] [PDF]


Home page
J Dairy SciHome page
C. Schrooten and H. Bovenhuis
Detection of Pleiotropic Effects of Quantitative Trait Loci in Outbred Populations Using Regression Analysis
J Dairy Sci, December 1, 2002; 85(12): 3503 - 3513.
[Abstract] [Full Text] [PDF]


Home page
J Dairy SciHome page
H. G. Olsen, L. Gomez-Raya, D. I. Vage, I. Olsaker, H. Klungland, M. Svendsen, T. Adnoy, A. Sabry, G. Klemetsdal, N. Schulman, W. Kramer, G. Thaller, K. Ronningen, and S. Lien
A Genome Scan for Quantitative Trait Loci Affecting Milk Production in Norwegian Dairy Cattle
J Dairy Sci, November 1, 2002; 85(11): 3124 - 3130.
[Abstract] [Full Text] [PDF]


Home page
J Dairy SciHome page
S. L. Rodriguez-Zas, B. R. Southey, D. W. Heyen, and H. A. Lewin
Interval and Composite Interval Mapping of Somatic Cell Score, Yield, and Components of Milk in Dairy Cattle
J Dairy Sci, November 1, 2002; 85(11): 3081 - 3091.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
S. Blott, J.-J. Kim, S. Moisio, A. Schmidt-Kuntzel, A. Cornet, P. Berzi, N. Cambisano, C. Ford, B. Grisart, D. Johnson, L. Karim, P. Simon, R. Snell, R. Spelman, J. Wong, J. Vilkki, M. Georges, F. Farnir, and W. Coppieters
Molecular Dissection of a Quantitative Trait Locus: A Phenylalanine-to-Tyrosine Substitution in the Transmembrane Domain of the Bovine Growth Hormone Receptor Is Associated With a Major Effect on Milk Yield and Composition
Genetics, January 1, 2003; 163(1): 253 - 266.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
M. S. Lund, P. Sorensen, B. Guldbrandtsen, and D. A. Sorensen
Multitrait Fine Mapping of Quantitative Trait Loci Using Combined Linkage Disequilibria and Linkage Analysis
Genetics, January 1, 2003; 163(1): 405 - 410.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
J. I. Weller, H. Weller, D. Kliger, and M. Ron
Estimation of Quantitative Trait Locus Allele Frequency via a Modified Granddaughter Design
Genetics, October 1, 2002; 162(2): 841 - 849.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
F. Farnir, B. Grisart, W. Coppieters, J. Riquet, P. Berzi, N. Cambisano, L. Karim, M. Mni, S. Moisio, P. Simon, D. Wagenaar, J. Vilkki, and M. Georges
Simultaneous Mining of Linkage and Linkage Disequilibrium to Fine Map Quantitative Trait Loci in Outbred Half-Sib Pedigrees: Revisiting the Location of a Quantitative Trait Locus With Major Effect on Milk Production on Bovine Chromosome 14
Genetics, May 1, 2002; 161(1): 275 - 287.
[Abstract] [Full Text] [PDF]


Home page
Genome Res.Home page
B. Grisart, W. Coppieters, F. Farnir, L. Karim, C. Ford, P. Berzi, N. Cambisano, M. Mni, S. Reid, P. Simon, R. Spelman, M. Georges, and R. Snell
Positional Candidate Cloning of a QTL in Dairy Cattle: Identification of a Missense Mutation in the Bovine DGAT1 Gene with Major Effect on Milk Yield and Composition
Genome Res., February 1, 2002; 12(2): 222 - 231.
[Abstract] [Full Text] [PDF]


Home page
Physiol. GenomicsHome page
D. W. HEYEN, J. I. WELLER, M. RON, M. BAND, J. E. BEEVER, E. FELDMESSER, Y. DA, G. R. WIGGANS, P. M. VANRADEN, and H. A. LEWIN
A genome scan for QTL influencing milk production and health traits in dairy cattle
Physiol Genomics, January 21, 2000; 1(3): 165 - 175.
[Abstract] [Full Text]


Home page
Proc. Natl. Acad. Sci. U. S. A.Home page
J. Riquet, W. Coppieters, N. Cambisano, J.-J. Arranz, P. Berzi, S. K. Davis, B. Grisart, F. Farnir, L. Karim, M. Mni, P. Simon, J. F. Taylor, P. Vanmanshoven, D. Wagenaar, J. E. Womack, and M. Georges
Fine-mapping of quantitative trait loci by identity by descent in outbred populations: Application to milk production in dairy cattle
PNAS, August 3, 1999; 96(16): 9252 - 9257.
[Abstract] [Full Text] [PDF]


Home page
GeneticsHome page
J. I. Weller, J. Z. Song, D. W. Heyen, H. A. Lewin, and M. Ron
A New Approach to the Problem of Multiple Comparisons in the Genetic Dissection of Complex Traits
Genetics, December 1, 1998; 150(4): 1699 - 1706.
[Abstract] [Full Text]


Home page
GeneticsHome page
Q. Zhang, D. Boichard, I. Hoeschele, C. Ernst, A. Eggen, B. Murkve, M. Pfister-Genskow, L. A. Witte, F. E. Grignola, P. Uimari, G. Thaller, and M. D. Bishop
Mapping Quantitative Trait Loci for Milk Production and Health of Dairy Cattle in a Large Outbred Pedigree
Genetics, August 1, 1998; 149(4): 1959 - 1973.
[Abstract] [Full Text]


Home page
GeneticsHome page
W. Coppieters, A. Kvasz, F. Farnir, J.-J. Arranz, B. Grisart, M. Mackinnon, and M. Georges
A Rank-Based Nonparametric Method for Mapping Quantitative Trait Loci in Outbred Half-Sib Pedigrees: Application to Milk Production in a Granddaughter Design
Genetics, July 1, 1998; 149(3): 1547 - 1555.
[Abstract] [Full Text]





HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright 1991 by the American Dairy Science Association.