J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Quinton, M.
Right arrow Articles by Smith, C.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Quinton, M.
Right arrow Articles by Smith, C.

Journal of Animal Science, Vol 73, Issue 8 2208-2212, Copyright © 1995 by American Society of Animal Science

JOURNAL ARTICLE

Comparison of evaluation-selection systems for maximizing genetic response at the same level of inbreeding

M. Quinton and C. Smith
Department of Animal & Poultry Science, University of Guelph, Ontario, Canada.

Use of improved methods of genetic evaluation and intense selection lead to higher rates of genetic change but also lead to higher rates of inbreeding. A number of methods have been proposed to attain high rates of genetic response with moderate or low inbreeding (i.e., restrict the number of close relatives selected, use false high heritability in the genetic evaluation, use assortative mating, adjust estimated breeding values for the relationship with those already selected, avoid matings of related individuals, and increase the number of parents selected). These various methods were compared here using stochastic simulation of an infinitesimal genetic model. The results were studied graphically plotting response against inbreeding, so allowing comparison of the methods at each of a range of inbreeding levels. None of the methods was best over all conditions. At high rates of inbreeding and with a fixed number of sires, several of the methods gave large decreases in inbreeding for small losses in response. However, these were matched by simply increasing the number of sires selected. There is an optimum response-inbreeding "front" attained by several methods, and this front seems hard to breach. Characterization of the front would be useful in designing selection programs.


This article has been cited by other articles:


Home page
 GeneticsHome page
W. M. Muir
Incorporation of Competitive Effects in Forest Tree or Animal Breeding Programs
Genetics, July 1, 2005; 170(3): 1247 - 1259.
[Abstract] [Full Text] [PDF]

Home page
 GeneticsHome page
L. Sanchez, M. A. Toro, and C. García
Improving the Efficiency of Artificial Selection: More Selection Pressure With Less Inbreeding
Genetics, March 1, 1999; 151(3): 1103 - 1114.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1995 by the American Society of Animal Science.