Document Detail

Selection of sires to reduce sampling variance in the estimates of heritability by half-sib correlation.
MedLine Citation:
PMID:  24221377     Owner:  NLM     Status:  In-Data-Review    
Standard methods to estimate heritability by half-sib correlation are biased if selection has operated in the parental generation. In this paper a simple method to correct for selection of animals used as sires is described. By selection of both the top and the bottom ranking sires, the sampling variances of the corrected estimates of heritability are substantially reduced. Algebraic expressions to predict the sampling variance of the estimates of heritability using selected sires are derived. Theoretical predictions were checked by Monte-Carlo simulation. The results may have application in the design of experiments to estimate heritabilities.
L Gomez-Raya; L R Schaeffer; E B Burnside
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik     Volume:  81     ISSN:  0040-5752     ISO Abbreviation:  Theor. Appl. Genet.     Publication Date:  1991 May 
Date Detail:
Created Date:  2013-11-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0145600     Medline TA:  Theor Appl Genet     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  624-8     Citation Subset:  -    
Centre for Genetic Improvement of Livestock, Animal and Poultry Science, University of Guelph, N1G 2W1, Guelph, Ontario, Canada.
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