Metody sovershenstvovaniya svinej urzhumskoj porody.
1993
Shmakov Yu.I.
Preferable selection of swines by coxofemoral part's mass in series of generations increased of mass by 93 g for one generation, meat and bones content - by 83 g. With the increasing of coxofemoral part on a given value increased the carcass's mass but not the front and mean parts. Selection by growth rate and coxofemoral part's mass based on evaluation of sires' progeny quality improved these traits for one generation by one day and 80 g respectively. Preferable selection by one or two traits didn't change for the worse other qualities of swines. This allows to recommend this method for use in swine breeding based on replacement of young stock's estimation by own productivity and on boars' testing by performance with selection intensity of 40-50 % for each trait.
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Эту запись предоставил Wolters Kluwer