title: Inequality constrained estimation of genetic parameters.
abstract: A method is presented for computing estimates of genetic parameters under linear inequality constraints such that solutions are within theoretical limits. The method produces biased estimators, yet a small scale numerical study, also presented, shows that the inequality constrained estimators have a small mean squared error of prediction than the best of unbiased estimators. The increase in efficiency of estimation is particularly useful for traits where heritability is near the boundary values of zero or one.
authors.affiliation: Department of Animal Science, University of California, 95616, Davis, CA, USA.
authors.forename: T R
authors.initials: TR
authors.lastname: Famula