Динаміка вагового росту телиць симентальської породи різних виробничих типів

Abstract

One of the important factors in the economic efficiency of the dairy industry is growing healing heifers. The purpose of the work was to study the dynamics of live weight of cows of Simmental breed of different production types during their growing season. Research was conducted at farm enterprise "Litynske" of Drohobych district of Lviv oblast. 161 animals were involved to research which were studied by the live weight, multiplicity of increase in live weight, average daily increments, relative intensity and growth stress of living mass in different age periods, as well as the age of their first insemination and first calving.