Chernenko A. The influence of method of sows maintenance on productive pigs' qualities of different genotypes.

Object: sows and male hogs of inbreed type of Durok breed of Ukrainian selection "Stepoviy", Large White breed of foreign selection, breeds of the Landrace French selection, and also crossbred young pigs. Purpose: study of influencing of individual and group method of maintenance of single and pregnant sows, and also combinations of inbreed type of Durok breed of Ukrainian selection "Stepoviy" with the Large White breed of foreign selection and breed of the Landrace French selection on productive qualities, Methods: zootechnics, physiological, biochemical, byometrical. Results: 1) for a theory are the results of researches extended theoretical knowledges through question of influence of methods of maintenance of sows on reproductive qualities, and also are foundation for the increase of efficiency of the use of pigs of the specialized meat genotypes at different methods of breeding. 2) for practice - on the basis of the conducted researches expedience of the use of individual method of maintenance ofsingle and pregnant sows is proved, and also efficiency of introduction of crossing of sows of inbreed type of Durok breed of Ukrainian selection "Stepoviy" with the male hogs of breed of the Landrace French selection, that will provide the receipts of large output of meat from the carcasses of animal more heavy gravimetric standards (120…140 kg). The sphere of the use is the economies which are engaged in growing of pigs.