Volovik M. Evaluation of using efficiency of purebred and crossbred sows of universal and special breed on different combinations

The object of researches is Of pure breed sows and producers, cross-breed piggy-wiggies, and also cross-breed sapling. Purpose of researches - determination of efficiency of methods of breeding at growing of twopedigree piggy-wiggies with high potential of productive qualities for subsequent their use in the system of crossing with the male hogs of final paternal forms. Methods of researches - experimental, zootechnics, physiology, biochemical, biometrics, economic. Results of researches: 1. For a theory - combinations of uteruses of meat and universal genotypes for the receipt of twopedigree sows of intended for the threepedigree industrial crossing are studied. Efficiency of models of transference of genetic information by completing maternal total number of forefathers from the pedigree loud-speakers of livestock is definite and paternal forms from pedigree factories, that allows to prevent inbriding and promotes the rates of transmission of the got selection achievements to commodity production. 2.For practice - job performances allowed to multiply the display of effect of geterozis at production of commodity pork, to shorten the term of transmission of selection achievements from pedigrees to the commodity economies, allows to multiply production and quality of commodity pork. The sphere of the use is agricultural enterprises.