Dynamic of growth of live weight and exterior–constitutional peculiarities cows ukrainian black and white dairy cattle different types of constitution

Abstract

Compound part of complex information approach towards desired animals determination is elaboration, approbation and extensive utilisation of different projection methods in selection and breeding work that is based on animals' body constitutional peculiarities. The analysis of the dynamics of growth of live weight and exterior features–constitutional was performed for cows Ukrainian black and white dairy cattle breeding farm for various types of constitution «Yamnytsya» Tysmenytsya district of Ivano–Frankivsk region. Determining the type of constitution animals was carried out by mass–metric coefficient (on D. T. Vinnychukom with co–authors): dense, intermediate and loose. Found that animals of different types of constitutions differ in growth dynamics live weight of heifers and exterior features–constitutional cows firstborn. Animals dense type of constitution by live weight during their growing intermediate and superior animals loose type of constitution as at birth and at age 6, 12 and 18 months and the first insemination. The highest intensity of live weight growth during the growing animals were observed dense type of constitution. During the period from birth to 18 months of age daily gain in animals these groups was 709.3 g, which is significantly higher than the loose types in 60.3 g (P < 0,001). According to body weight and body core soundings cows firstborn different types of constitutions for most indicators have preferred dense animal–type constitution. They noted the good development of the chest, a relatively deep but not broad chest, which are typical for dairy cattle. Probable animals advantage dense type of interim constitution and loose observed both in live weight and in many soundings and indices of body structure.