Innovative conceptual model of an ideal type of highly productive dairy cow

Relevance. Recently in zootechnical science mathematical methods of researches, tools of the quantitative description of the selected signs are more often applied. This indicates that science is moving to a higher stage of its development. One of the modern methods in animal husbandry is the creation of growth models of cows, which is especially important for the current stage of the dairy cattle industry. Methods. The article presents materials of lengthy scientific research on the mathematical description of the growth of heifers and dairy cows in accordance with the requirements of ideal types of 1931 and 1974. Results. A quantitative characteristic of live weight and basic measurements of the body of ideal type cows has been developed. The cows linear growth constants for growth models are calculated. The changes in the body volume and the “Breed Specialization Index” with age by growth standards were determined. Linear differences were revealed in changes in body weight and body measurements in animals. The author’s technique for the creation (breeding) of ideal dairy model cows is described.

селекция, корова, тип, молоко, продуктивность, эффект, генетика, отбор, подбор, модель, математическое уравнение, порода, генотип, breeding, cow, type, milk, productivity, effect, genetics, selection, model, mathematical equation, breed, genotype