Izhboldina O. Efficiency of specialized meat genotype boars usage under different breeding methods in the terms of energy saving technology

Object of the research - implementation of genotypical features of different boars genotypes in combination with purebred and mixed-type sows. The aim of the research - to determine the feasibility and efficiency of specialized meat genotypes boars usage under different breeding methods. Methods of the research - livestock, physical, chemical, physiological, biochemical, bio thermal. The results: 1. In terms of theory -for the first time under conditions of the energy saving technology was established the efficiency of usage of synthetic meat line Hungabib Hungarian selection boars in combination with purebred and mixed-type sows of Great White Breed. 2. In terms of practice - Usage of specialized Hungahib meat genotype boars for pure and crossbred she-pigs improved slaughtering weight for 4,1 and 3,9 %, increased mass of rear third of diverting weir for 1,3 and 1,56 кг, and beef yield of carcass for 5,19 and 4,82 %. The results of the research were implemented at agricultural company 'Vidrodzhennya' Ltd., Novomoskovs'kyi district, Dnipropetrovs'k region. Total economic impact per 100 heads amounted to 67,498 UAH. Scope of use - Ukrainian companies which produce pork.