| Issue |
E3S Web Conf.
Volume 376, 2023
International Scientific and Practical Conference “Environmental Risks and Safety in Mechanical Engineering” (ERSME-2023)
|
|
|---|---|---|
| Article Number | 02028 | |
| Number of page(s) | 7 | |
| Section | II Environmental and Agricultural Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202337602028 | |
| Published online | 31 March 2023 | |
Research on the productivity and interior of fattening bulls
1 Krasnodar Research Centre for Animal Husbandry and Veterinary Medicine, Krasnodar, Russian Federation
2 Kuban State Agrarian University named after I. T. Trubilin, Krasnodar, Russian Federation
* Corresponding author: ms.basana@list.ru
The results of studies of the productivity and interior of young cattle of the Charolais breed fattened in CJSC Firm of Agrocomplex named after N.I. Tkachev, Vyselkovsky district, Krasnodar Territory. With a live weight before slaughter of 560.4 ± 16.7 kg, carcasses with a slaughter yield of 68.0% were distinguished by high rates of meat: the yield of boneless beef for baby food was 81.0%. At the age of 18 months animals had the highest content of total protein in the blood serum. In comparison with 12-month-old, bulls of 18 months old sowed higher live weight values, as well as higher albumin fraction indicators. The same trend was observed for the protein index (Albumin/Globulin - A/G) - an indicator of the state of protein metabolism (0.72 - at 12 months and 1.23 - at 18 months). An increase of 3.8% in the amount of lysozyme in the blood serum of bulls at the age of 18 months was established. compared to 12 months. (p<0.05).
Key words: young cattle / blood composition / immunity / age
© The Authors, published by EDP Sciences, 2023
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