Open AccessThe effect of vitamin-mineral premix on the dynamics of live weight and slaughter indices of bull calves of the Kazakh white-headed breed
Author(s) -
Alexey Vyacheslavovich Molchanov,
Roman Aleksandrovich Kochetkov,
Anton Nikolaevich Kozin,
Irina Aleksandrovna Sazonova,
Karina Alekseevna Egorova
Publication year - 2020
Publication title -
agrarnyj naučnyj žurnal
Language(s) - English
Resource type - Journals
eISSN - 2587-9944
pISSN - 2313-8432
DOI - 10.28983/asj.y2020i12pp66-67
Subject(s) - kazakh , zoology , breed , body weight , biology , vitamin , veterinary medicine , medicine , endocrinology , philosophy , linguistics
The dynamics of live weight and slaughter indicators of Kazakh white-headed bulls were studied when the vitamin and mineral premix was introduced into the diet. Animals that were fed with a premix in a concentration of 1% along with the main diet exceeded their peers in live weight at the age of eight months by 4.38 kg (2.03 %), and at 18 months, at the end of the experiment, by 20.4 kg (3.89%). Control slaughters showed that the slaughter weight of the bulls of the experimental group was better than the control by 25.27 kg (7.64 %), and the superiority in slaughter yield was 2.49 %.