Open AccessInfluence of climatic seasons and the origin of animals on indicators of cattle productivity
Author(s) -
В. И. Колпаков,
Alexey Ruchay,
К. М. Джуламанов,
Dianna Kosyan
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/624/1/012034
Subject(s) - breed , biology , zoology , homeothermy , hemoglobin , globulin , productivity , ecology , thermoregulation , endocrinology , biochemistry , macroeconomics , economics
The processes of life of the body, as well as its physiological functions, are largely characterized by the biochemical and morphological compositions of blood. Studying the level and direction of metabolic processes in animals under the influence of genotypic and paratypical factors is of great practical interest. The object of the study was bull-calves from cows of different productive values of the created hornless type of Hereford breed cattle. We found an increased level of β-globulins in experimental bulls of groups III and V in the winter as well as a significant (in 1.2 times) increase (p≤0.05) of the vitamin A content in group II, compared to the first group. A significant increase in the concentration of carotene in the II experimental group reached a 1.3 times point (p≤0.05) and, at the same time, found its decrease in the IV group by 17.1 % (p≤0.05) compared to the first group. It was noted that the more massive calves had higher levels of hemoglobin and red blood cells in temperature-contrast periods of the year. The superiority of bulls from group III over peers in these indices was 5.05–16.29 % and 5.1–13.5 %. All changes in the values of the morphological and biochemical compositions of blood were at the optimal level changing by seasons of the year. In most cases, the high values corresponded to a higher growth rate of the live mass of the bulls of studied genotypes.