I. F. Gorlov1, 2, M. I. Slozhenkina1, 2, O. P. Shakhbazova3 , R. G. Radzhabov3 , E. Yu. Anisimova1
1 Volga Region Research Institute of Manufacture and Processing of Meat-and-Milk Production, Volgograd, Russia
2 Volgograd State Technical University, Volgograd, Russia
3 Don State Agrarian University, Rostov-on-Don region, Persianovskiy settlement, Rostov region, Russia
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Volume 25 No. 4
Date of paper submission: 28.01.2025, date of review: 24.02.2025, date of acceptance: 26.02.2025.
Published: 04/30/2025
Abstract. The results of study the efficiency of breeding Holstein cattle by dairy productivity and milk quality in cows of different lines are presented. The purpose of the study is a comparative assessment of animals from the Vis Back Ideal and Reflection Sovering lines during the period of the highest and last completed lactation. Methods. According to the principle of analogues two groups of animals were formed (30 heads in each), taking into account age and lineage. The scientific novelty lies in the acquisition of new knowledge regarding the impact of the linear affiliation of animals on their dairy productivity and milk quality by correlation analysis. Results. It was found that cows of the Reflection Sovering line surpass the Vis Back Ideal line in milk yield during the highest lactation by 510.09 kg (4.27 %, P < 0.05), and in the last lactation – by 599.94 kg (5.41%). The coefficient of milk production in cows of the Reflection Sovering line was also higher by 69.26 kg (2.96%) during the peak of productivity. The milk fat yield of this line exceeded that of the Vis Back Ideal line by 23.44 kg (4.99 %, P < 0.05) during the highest lactation and by 26.33 kg (6.07 %, P < 0.05) in the last lactation. The milk protein yield was also higher by 16.09 kg (4.06 %, P < 0.05) and 17.84 kg (4.81%), respectively. Correlation analysis revealed that Vis Back Ideal cows have a more pronounced negative relationship between milk yield and fat content in milk (r = –0.62, P < 0.001), whereas this relationship is weaker in the Reflection Sovering line (r = –0.28), indicating a more stable chemical composition of milk. The results obtained can be used to improve of breeding, feeding and housing of cows, which will contribute to increase the efficiency of dairy cattle breeding in Russia.
Keywords: dairy cattle breeding, Holstein breed, linear origin, milk yield, milk quality, milk fat yield, milk protein yield, correlation analysis
Acknowledgements. The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme No. 125030603224-4).
For citation: Gorlov I. F., Slozhenkina M. I., Shakhbazova O. P., Radzhabov R. G., Anisimova E. Yu. The influence of genetic affiliation on dairy productivity and milk quality in Holstein cows. Agrarian Bulletin of the Urals. 2025; 25 (04): 606‒618. https://doi.org/10.32417/1997-4868-2025-25-04-606-618 (In Russ.)
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