Mikityuk V. Selection-genetic featuring of adaptation and exploitation of meaty-wool sheep by corridel's type at North-Central Ukrainian steppe

At dissertation work on the base of results of the complex genetic-population and morpho-physiological researches is presented practical possibility of acclimatization and successful cultivation of the sheep New Zealand's corridel breed on the conditions of a steppe zone of Ukraine is proved. At the work is definition models of adaptive mechanisms of an organism sheep are substantially updated at interaction "genotype - environment". It is established methods selection by using of stabilize assortment mostly. It is theoretic reasoned and practically proved by effective of using of New Zealand's Corridels at breed created system. At the work is fined of new methodic approaches on crossing with half-fine sheep with create of Dnepropetrovsk type of Askaniya meaty-wool sheep with cross-breed wool and highly meaty qualities. It is firstly on consolidation of new created type of sheep in seep breeding for optimization of selection process use the complex system by estimation of genetic-population parameters which based on dynamics of productivity levels and compared variables of selection signs on changes of generations with identify of peculiarities of graphical gradation of variation range and dispersion analysis is presented.