Open AccessThe influence of the level of dietary metabolizable protein on the provision of energy and productive functions in Charolais bulls
Author(s) -
Viktar Lemiasheuski
Publication year - 2020
Publication title -
proceedings of v international scientific conference “current state, problems and prospects of the development of agrarian science”
Language(s) - English
Resource type - Conference proceedings
DOI - 10.33952/2542-0720-2020-5-9-10-134
Subject(s) - energy balance , zoology , energy metabolism , body weight , weight gain , biology , food science , chemistry , endocrinology , ecology
The results of studying the characteristics of the use of substrates in energy metabolism at different levels of metabolizable protein (8.0 g and 8.3 g per 1 MJ of metabolizable energy) in the diets of 9-month-old Charolais meat bulls with an initial live weight of 260 kg are presented. Based on the data obtained on the energy balance and gas-energy metabolism by the mask method, the ratio of the contribution of the metabolizable energy of the diet to body weight gain and heat production of bulls during the period of intensive growth was determined.