Research of influence of hormonal status on productive qualities of bulls of Hereford cattle breed
https://doi.org/10.32634/0869-8155-2025-391-02-73-79
Abstract
Improvement of productive qualities of beef cattle is an important direction of livestock breeding development in the Russian Federation. The hormonal status of farm animals plays an important role in the development of their productive and reproductive qualities.
The present study provides data on productive qualities of Hereford cattle steers depending on their hormonal status. To assess the hormonal status of animals, their hair can be used. The content of estradiol in hair allowed to divide animals into groups, different in concentration of this hormone and to give an estimation of productive qualities of bulls in the context of such division. Each group of animals was closely monitored. Live weight and its average daily gain were controlled. It was found that the growth rate of live weight of steers was higher in groups with high reference values of hormone content in hair. After slaughtering the morphological and chemical composition of carcasses of experimental animals was determined. On the basis of multivariate analysis the informativeness of hair as a biosubstrate for estimation of hormonal status of beef steers was determined.
Supporting agencies: This research was funded by Russian Science Foundation under Project No. 24-16-00093. https://rscf.ru/project/24-16-00093/
About the Authors
I. V. Mironova
Bashkir State Agrarian University; Federal Research Centre of Biological Systems and Agrotechnologies RAS
Russian Federation
Russian Federation
Irina Valeryevna Mironova - Doctor of Biological Sciences; Professor, Head of the Department of Meat and Dairy Products Technology and Chemistry; Senior Researcher at the Livestock.
34 50-letiya Oktyabrya Str., Ufa, 450001; 29 January 9th Str., Orenburg, 460000
О. A. Zavyalov
Federal Research Centre of Biological Systems and Agrotechnologies RAS
Russian Federation
Russian Federation
Oleg Alexandrovich Zavyalov - Doctor of Biological Sciences, Leading Researcher.
29 January 9th Str., Orenburg, 460000
A. N. Frolov
Federal Research Centre of Biological Systems and Agrotechnologies RAS
Russian Federation
Russian Federation
Alexey Nikolaevich Frolov - Doctor of Biological Sciences.
29 January 9th Str., Orenburg, 460000
A. A. Slinkin
Bashkir State Agrarian University
Russian Federation
Russian Federation
Artyom Andreevich Slinkin - Candidate of Biological Sciences; Associate Professor of the Department.
34 50-letiya Oktyabrya Str., Ufa, 450001
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Review
For citations:
Mironova I.V., Zavyalov О.A., Frolov A.N., Slinkin A.A. Research of influence of hormonal status on productive qualities of bulls of Hereford cattle breed. Agrarian science. 2025;(2):73-79. (In Russ.) https://doi.org/10.32634/0869-8155-2025-391-02-73-79
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