A dominance model is described coming with inbreeding, and five genetic parameter plus the environmental variance. The linear model is specified by the phenotypic equations and the mid-parent equations. They are placed in an indefinite system that is highly sparse, not the mixed model equations. From this system the augmented matrix K is built that is symmetric and indefinite, leading to restricted maximum likelihood. Likelihood evaluation follows from the factorization of K, and various sparse matrix tools are described for maximizing the likelihood. The method is used to estimate the six parameters for 2706 egg-laying hens that were part of a selection experiment.
Comments: 21 Pages.
[v1] 2018-02-05 14:52:22
Unique-IP document downloads: 32 times
Vixra.org is a pre-print repository rather than a journal. Articles hosted may not yet have been verified by peer-review and should be treated as preliminary. In particular, anything that appears to include financial or legal advice or proposed medical treatments should be treated with due caution. Vixra.org will not be responsible for any consequences of actions that result from any form of use of any documents on this website.
Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.