Application of Mate Selection to Pig Breeding Programs
نویسنده
چکیده
The selection policies in a breeding program may be considered as a two stage process: the selection of replacement breeding stock based on estimates of each individual's genetic merit, and the choice of which animals to mate together (the mating system). Selecting individuals of high genetic merit is typically considered independently of their potential mates and the mating system, although the method of genetic evaluation may influence the likelihood of selected individuals being related. Once the choice of replacement breeding stock has been made, the level of inbreeding associated with a breeding program is then determined by the mating system applied to selected individuals. This poses the question of whether animals selected using independent two stage selection decisions are best suited to the long-term improvement of the breeding herd, where long-term potential gains in genetic merit may be offset by elevated levels of inbreeding.
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