Mikhail V Yavnov, Alexey N Frolov, Natalya V Soboleva

Animal Husbandry and Fodder Production. 2024. Vol. 107, no 3. Р. 99-107.

doi:10.33284/2658-3135-107-3-99

 

Original article

Influence of different rearing methods on growth rate, slaughter qualities and economic

efficiency of growing Kazakh white-headed bulls

 

Mikhail V Yavnov1, Alexey N Frolov2, Natalya V Soboleva3,4

1,2,3 Federal Research Centre of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, Orenburg, Russia

4 Orenburg State Agrarian University, Orenburg, Russia

118099393@mail.ru, https://orcid.org/0009-0002-4444-8774

2forleh@mail.ru, https://orcid.org/0000-0003-4525-2554

3,4natalya.soboleva12@mail.ru, https://orcid.org/0000-0002-3688-2303

Abstract. The development of an optimal technology for growing and fattening in a specific region, taking into account the forage base and pasture productivity is a topical issue in beef cattle breeding in the issue of how to increase its profitability and competitiveness compared to other livestock industries. In this regard, the aim of the study was to investigate the effect of different periods of keeping on pasture on the productive and economic indicators of Kazakh white-headed bulls. For this purpose, a scientific and economic experiment was conducted at Novoiletskoye LLC in the Sol-Iletsk District of the Orenburg Region on 8-month-old bulls (n=100). They were divided into 2 groups after weaning: Group 1 - from 8 to 18 months of age were kept on a fattening site, Group 2 - from 8 to 11 months of age fattening on natural pastures, and from 12 to 18 months - a fattening site. The experiment lasted 304 days. The results of the experiment showed that from 10 to 14 months of age, the best growth rate was demonstrated by the Group I bulls, their superiority over their peers in Group II in live weight during this period was 3.1-5.8%. After transferring the Group II bulls from the pasture to the feedlot, they demonstrated the best growth rate, which led to a reduction in intergroup differences in live weight to 1.0%. The control slaughter conducted at the age of 18 months under the conditions of the slaughterhouse of JSC Sputnik showed that all carcasses obtained from the experimental animals were classified as Extra, class A. Group II was characterized by the best yield of fresh carcasses, their superiority over their peers in Group I was 0.75%, with less internal fat deposition by 7.9%. The use of a technological operation in the form of extending the grazing period to 11 months of age is economically advantageous; it allows to reduce production costs by 3.0%, increase profits by 14.4%, and the level of profitability by 2.32%.

Keywords: beef cattle breeding, bulls, Kazakh white-headed breed, fattening, pasture period, feedlot, growth rate, economic efficiency

For citation: Yavnov MV, Frolov AN, Soboleva NV. Influence of different rearing methods on growth rate, slaughter qualities and economic efficiency of growing Kazakh white-headed bulls. Animal Husbandry and Fodder Production. 2024;107(3):99-107. (In Russ). https://doi.org/10.33284/2658-3135-107-3-99

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Information about the authors:

Mikhail V Yavnov, postgraduate student, Federal Research Centre of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 29 9 Yanvarya St., Orenburg, 460000, tel.: 8(3532)30-81-78.

Alexey N Frolov, Dr. Sci. (Biology), Head of Department of Technology for Beef Cattle Breeding and Beef Production, Federal Research Centre of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 29 9 Yanvarya St., Orenburg, 460000, tel.: 8(3532)30-81-78.

Natalya V Soboleva, Cand. Sci. (Agriculture), Research Associate, Laboratory of Biological Testing and Expertise, Federal Research Centre of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 29 9 Yanvarya St., Orenburg, 460000, tel.: 8(3532)30-81-75; Associate Professor, Department  of  Livestock  Production and Processing Technology, Orenburg State Agrarian University, 18 Chelyuskintsev Street, Orenburg, 460040.

The article was submitted 20.06.2024; approved after reviewing 01.08.2024; accepted for publication 09.09.2024.

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