Unexpected estimates of variance components with a true model containing genetic competition effects

Journal of Animal Science

Volumn 83, Issue 1, 2005, Pages 68-74

  Van Vleck, L D ^a,c   Cassady, J P ^b  

^a AGRICULTURAL RESEARCH SERVICE   (United States)

^b NORTH CAROLINA STATE UNIVERSITY   (United States)

^c A218 Animal Sciences   (United States)

Author keywords

Genetic parameters; Pen effects; Restricted maximum likelihood; Simulation

Indexed keywords

EID: 12244288883     PISSN: 00218812     EISSN: None     Source Type: Journal    
DOI: 10.2527/2005.83168x     Document Type: Article

References (7)

1. Boldman, K. G., L. A. Kriese, L. D. Van Vleck, C. P. Van Tassell, and S. D. Kachman. 1995. A manual for use of MTDFREML. A set of programs to obtain estimates of variance and covariances [Draft]. USDA-ARS, Clay Center, NE.
2. Federer, W. T. 1955. Chapter 3 in Experimental Design: Theory and Application. The MacMillan Co., New York.
3. Griffing, B. 1967. Selection in reference to biological groups. I. Individual and group selection applied to populations of unordered groups. Aust. J. Biol. Sci. 10:127-139.
4. Muir, W. M. 2004. Incorporation of competitive effects in breeding programs. Genetics (In press).
5. Muir, W. M., and A. Schinckel. 2002. Incorporation of competitive effects in breeding programs to improve productivity and animal well being. CD-ROM Communication No. 14-07 in Proc. 7th World Cong. Genet. Appl. Livest. Prod., Montpellier France.
6. Van Vleck, L. D. 1994. Algorithms for simulation of animal models with multiple traits and with maternal and non-additive genetic effects. Braz. J. Genet. 17:53-57.
7. Van Vleck, L. D., and J. P. Cassady. 2004. Modification of MTDFREML to estimate variance due to genetic competition effects. J. Anim. Sci. 82(Suppl.2):38. (Abstr).