Ponko L. Assessment of Selective and Genetic Factors of Formation of Productive Characteristics in the Ukrainian Black-and-White Dairy Cows of Podolian Factory Breed

Object of research: the formation of milk production of cows, heifers growth and development of different lines and families Ukrainian black and white dairy cattle Podolski plant type. Objective: to study the effect of selection and genetic factors on the formation of milk production animal Ukrainian black and white dairy cattle Podolski plant type, identifying the most productive lines and families determine their effectiveness in terms of breeding skirts Ukraine. Methods: zootechnical, biochemical, physiological, statistical, economic. Theoretical and practical results, in theoretical terms - expanded range of knowledge about the features of formation of milk production in cattle, depending on genetic and environments factors. In practical - revealed the most productive genealogical structure in Podolsk factory type Ukrainian black and white dairy cattle - cows line Butmeyke 1450228.63 - 6580 kg of milk, 3.75% fat and cow families Kytsi 1386 - 5463 kg, 3.75% and 874 Malyuta - 5490 kg, 3.76% for the third lactation, respectively. The novelty: for the first time on the basis of morphological, biochemical blood parameters and characteristics of pulmonary gas exchange in heifers and cows of different lines of Podolsk factory type Ukrainian black and white dairy cattle found their impact on basic features selection. Expanded existing data on the growth characteristics of repair heifers and cows of different lines and families Ukrainian black and white dairy cattle in certain periods of their growth, communication live weight of cows during cultivation, exterior-constitutional features, performance reproductive ability and age of first insemination of their milk production. Degree of implementation: case studies on dairy and breeding farm DG DP "Pasichna" Starosyniavs'kyi district Khmelnitsky region. Scope - livestock, including dairy cattle.