METHODOLOGY OF CALCULATING THE REQUIREMENT OF METABOLIC ENERGY OF PIGS OF DIFFERENT PRODUCTIVITY
Energy is very important in the diet of pigs in order to enhance metabolic function. When energy is insufficient, nutritional agents can’t contribute to enhancing genetic capacity of animals. The main costs in feeding relate to satisfy animals needs in energy. The research is aimed at defining the bacon pigs, meat-type pigs and meat and fat pigs at the last stage of fattening in dependence on genetic capacity, keeping conditions and pork quality. The authors investigated fattening Duroc pigs, Landras pigs and White pigs at Agricultural holding “Vostok” of the Krasnoyarsk Territory. The authors used factorial method and analyzed chemical composition of pork in veterinary laboratory of Krasnoyarsk. The research has shown that metabolic energy is a research criteria used for defining energy needs of animals. The authors suggest innovative methodology to rate animals needs in metabolic energy at the last stage of fattening. It includes factorial method based on energy costs for specific physiological functions. This method and research data contribute to define pork quality and animal productivity in dependence on genetic capacity, physiological condition and keeping conditions. Application of this methodology at pig-breeding enterprises contributes to feeding animals on the basis of scientific method and produce agricultural production with low costs on feeds which makes 60 % of pork production costs in the Krasnoyarsk Territory.