[Comparative characters of meat productivity and beef quality of purebred bulls of the Kazakh White-Headed breed and young stock resulting from pure breeding of generations 3-4 (Kazakh white - headede x Simmental cattle) in Buryatia]

beef beef cattle bovin de boucherie breeds bulls calidad calves carne de res croisement crossbreds cruzamiento ganado de carne meat yield productos del cruzamiento produit de croisement quality race razas rendement en viande taureau ternero toro veau viande de boeuf