Pentilyuk R. The influence of the ancestral, paratypic factors and sexual dimorphism on the pig's reproductive qualities increasing

The object of researches is Sows and piglings of a different floor of large white breed and their cross-breed with a red Whitebelt breed. Purpose of researches - Development of technological receptions of rise of productivity of sows and energy of growth of piglings of different genotypes and floor by the use in their rations of preparations biologically active matters. The methods of researches are zootechnicss; biochemical; biometricheskoy data processing. Results of researches: 1. For a theory - differences are First set on the economic-useful signs of pigs of large white breed and their cross-breeds with a Redbelt meat breed at the use of preparations biologically active matters for the improvement of productivity of animals. The features of display of productivity of pigs of different genotypes and their sensitiveness to action biologically of active matters are proved; a character and degree of intercommunication between forages is definite, sexual and genotips factors at forming of productive signs of animal.. 2. For practice - the receptions of the use are Developed and set optimum combinations of preparations of biological matters in the conditions of forage base of south of Ukraine. Separate forage additions or their complex application allow at definite terms to level the indexes of growth of piglings of a different floor and genotype. Sphere of the use - pig breeding economies of Ukraine.