Yu. G. Lyubimova, V. A. Tereshchenko, E. A. Ivanov
Krasnoyarsk Scientific Research Institute of Agriculture – the Separate Division of the Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
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Volume 26 No. 1
Date of paper submission: 09.10.2025, date of review: 11.11.2025, date of acceptance: 25.11.2025.
Published: 01/30/2026
Abstract. The purpose is to evaluate the impact of a phytomineral feed supplement on the productivity of dairy cows and the quality of their milk. Scientific novelty. To establish the optimal feeding dosage of a new phytomineral supplement developed from cedar production waste (pine cone husks, nutshells) and expanded vermiculite and to evaluate its impact on the milk productivity and milk quality of cows in the Krasnoyarsk region. Methods. The experiment was conducted in the EPF “Mikhaylovskoe” – a branch of the FRC KSC SB RAS of the Krasnoyarsk region on Black-Motley breed dairy cows, divided into four groups (one control group and three experimental groups) of 10 animals each. In contrast to the control group, cows in the experimental groups were fed a phytomineral feed supplement in addition to their main diet for 100 days. The following dosages were used: group 1 – 100; group 2 – 150; group 3 – 200 g/head/day. The animals were kept under the same conditions: tethered and free-range in individual stalls. Milk productivity was determined by monthly test milkings, and milk quality indicators – on the certified analyzer “Ekspert Super Plem Kombo” (LLC SPE “Laboratorika”, Russia). Results. It was found that under the influence of different dosages of the phytomineral supplement, the experimental cows increased their milk yield and improved the quality of milk, but the highest milk productivity in cows was established when feeding the supplement at a dosage of 200 g/head/day: natural fat milk yield increased by 8.74 %, basic fat milk yield – by 11.75 %, average daily milk yield – by 8.73 %, the mass fraction of fat in milk – by 0.11 percentage points, the mass fraction of protein – by 0.09 percentage points, the amount of milk fat – by 11.74 %, milk protein – by 11.65 %.
Keywords: cattle, expanded vermiculite, pine cone husks, pine nut shells, feed additive, milk productivity, milk quality indicators, feeding
Acknowledgments. The study was performed within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (project No. 125020601647-4).
For citation: Lyubimova Yu. G., Tereshchenko V. A., Ivanov E. A. Natural non-traditional sources of biologically active substances in feeding dairy cows. Agrarian Bulletin of the Urals. 2026; 26 (01): 152‒161. https://doi.org/10.32417/1997-4868-2026-26-01-152-161 (In Russ.)
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