Edige G Nasambaev, Ruzia F Tretyakova, Mikhail S Vins, Faisulo S Amirshoev

Animal Husbandry and Fodder Production. 2024. Vol. 107, no 3. Р. 25-35.

 

doi:10.33284/2658-3135-107-3-25

 

Original article

Assessment of bulls according to their own performance as a best approach to improving the performance characteristics of beef cattle

 

Edige G Nasambaev1, Ruzia F Tretyakova2, Mikhail S Vins3, Faisulo S Amirshoev4

1West Kazakhstan Agrarian and Technical University named after Zhangir Khan, Uralsk, Republic of Kazakhstan

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

4Tajik Academy of Agricultural Sciences, Dushanbe, Republic of Tajikistan

1Nasambaeve@mail.ru, https://orcid.org/0000-0002-0995-7832

2kserev_1976@mail.ru, https://orcid.org/0000-0002-5155-4295

3vins.miki@bk.ru, https://orcid.org/0009-0005-8030-9845

4afaizullo64@mail.ru, https://orcid.org/0000-0002-8009-8057

 

Abstract. The article presents the conclusions of tests of the Kazakh white-headed bulls on their own productivity, carried out on the Aisulu farm (Ankatinsky LLP, West Kazakhstan region). The results showed that the increase in the size of calves correlates with an increase in their live weight throughout the entire growing period. Analyzing the exterior dynamics of bulls, it is noted that young animals at a young age largely correspond to the beef type of cattle. The study of growth intensity was carried out on the basis of monthly individual weighing of bulls raised under the same housing and feeding conditions. The weighing results made it possible to determine the productivity indicators of young animals, such as live weight and average daily gain. The feed consumption of bulls was taken into account for the entire test herd, and their consumption was determined monthly for two adjacent days by weighing a  given  amount  of  feed  and  residues.  Classification  and  index  assessments  of  bulls aged from 8 to 12 months and from 12 to 15 months indicate an increase in the number of animals with a high complex class, mainly due to high live weight and meat forms. The results of the classification assessment at different stages of age (up to 12 months and up to 15 months) do not coincide, which indicates different characteristics of bulls at these stages. Therefore, assessing the breeding value of a bull based on a classification assessment at an early age, namely at 12 months, may be unreliable.

Keywords: cattle, bulls, live weight, measurements, conformation indices, gains, exterior, meat forms, selection

For citation: Nasambayev EG, Tretiyakova RF, Vince MS, Amirshoev FS. Assessment of bulls according to their own performance as a best approach to improving the performance characteristics of beef cattle. Animal Husbandry and Fodder Production. 2024;107(3):25-35. (In Russ.). https://doi.org/10.33284/2658-3135-107-3-25

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Information about the authors:

Edige G Nasambaev, Dr. Sci. (Agriculture), Professor, West Kazakhstan Agrarian and Technical University named after Zhangir Khan, 51 Zhangir Khan St., Uralsk, Republic of Kazakhstan, 090009, tel.: 8-777-468-23-67.

Ruziya F Tretyakova, Cand. Sci. (Biology), Researcher at the Breeding and Genetic Center for Beef Cattle, Federal Research Centre of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 29 9 Yanvarya St., Orenburg, 460000, tel.: 8(3532)30-81-74.

Mikhail S Vince, 1st year graduate student, Federal Research Centre of Biological Systems and Agrotechnologies of the Russian Academy of Sciences, 29 9 Yanvarya St., Orenburg, 460000, tel.: 8(3532)30-81-76.

Faisulo S Amirshoev, Dr. Sci. (Biology), Professor, Corresponding Member of the Tajik Academy of Agricultural Sciences, Vice-President of the Tajik Academy of Agricultural Sciences, 21 “A”, Rudaki Avenue, Republic of Tajikistan, Dushanbe, 734025, tel.: 810992372310607.

 

The article was submitted 04.04.2024; approved after reviewing 06.06.2024; accepted for publication 09.09.2024.

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