Volgina N. Ground of methodology estimation of constitution types of different breed horses

The object of the study. Breeding process in populations of horses trotting Russian, Novoaleksandrovsk tyazhelovoznoy, and Ukrainian thoroughbred horse breeds, the formation and development of the methodology for assessing the types of constitution. Subject of the study. Types of constitution, work productivity, exterior features horses, skin and hoof horn, morphological composition of blood and its protective properties, methods of evaluation, culling and selection of horses. Research methods. Zootechnic, morphometric and biometric generalization and systematization,. Scientific novelty of the results. According to the results of a comprehensive study was developed the new provisions of methodology for assessing constitution types of horses on the interpretation of the term "constitution horses", the classification of types of the constitution, separation of constitutional evaluation of defects and deficiencies of exterior and determine the strength of the type of the constitution. The practical significance of the results. Рroposed and made changes to the order of assessment of the type of horses constitution according tо the developed method, the effectiveness of which is confirmed by the results of implementation in production.