Optimal Contribution Selection in Highly Fecund Species With Overlapping Generations.

ABSTRACT: Optimal contributions approaches to parental selection in closed breeding populations aim to maximize genetic gains, while restraining long-term inbreeding. The adoption of optimal contribution selection (OCS) in highly fecund outcrossing species presents a number of challenges not applicable to species of low fecundity (e.g., livestock) for which they were developed. This is particularly true if overlapping-generations or rolling-front breeding strategies are applied, in which case the number of individuals per family in juvenile (i.e., sexually immature) age groups is not necessarily known but is likely to be large. In these circumstances, conventional OCS procedures must be modified or a large number of dummy individuals defined, making computations onerous. Here, an approach to OCS is

SUBMITTER: Hamilton MG 

PROVIDER: S-EPMC7846093 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature