Кarpenko O. Use of mathematical models for prognostication of egg-laying hens

Object of researches: cross-country races of hens egg and meat-eggs directions of productivity. Purpose of researches - determination of efficiency of the use of mathematical patterns of growth of repair sapling, curves of eggs-productions of hens, description and prognostication of egg productivity. Methods are zootechnics, biometrics; mathematical design; economic. Results of researches: for a theory - expedience of the use of indexes of intensity of growth and forming of organism for prognostication of eggs-productions coming from data for the first 3-4 months of its consideration is set. High correlation dependences of parameters of models and indexes with living mass and eggs-productions are exposed. The coefficients of transgression and genetic cognation of chickens of egg are definite and meat-eggs directions of productivity. For practice - on results the researches the possibility of the use of parameters of mathematical models and indexes of growth for the selection of birds in early ontogenesis is set. Sphere of the use - poultry farming economies.