Kovalenko R. Productive Qualities in Pigs of Different Genotypes under Conditions of the Three-Phase and Single-Phase Production Technologies in the Steppe Zone of Ukraine

This dissertation thesis presents the results of investigations undertaken with the aim to study the effects of different pork production technologies on the productive performance in purebred and crossbred pigs. Dissertation work is devoted determination of possibility of the use of monophase technology of production of pork with the use of different methods of breeding. First, influence of three-phase and monophase technologies of production of pork is investigational on productive qualities of of pure breed and pomestnykh pigs in the conditions of Steppe of Ukraine at the level of one economy. Expedience of the use of single-phase technology of production of pork is set with the use of different methods of breeding of pigs.