Systems of mating to reduce inbreeding in selected populations

摘要: Stochastic simulation is used to compare different systems of mating reduce rates inbreeding in selection programmes with phenotypic or animal model best linear unbiased prediction (BLUP) evaluation. Compensatory (the between individuals from the largest selected families smallest) turns out be proportionately about 0-30 more effective than minimum coancestry matings for situations low inbreeding, such as high population size, although advantage less apparent if common environmental effects are important. A modification this system proposed which can applied overlapping generations, and shown by 0-50 discrete generations. Under however, BLUP small matings, even avoidance sib effective. procedure combining compensatory also simulated gives reductions rate inbreeding. The these other on occur through a reduction cumulative effect deviation Hardy-Weinberg proportions.