Gusarov IV, Filippova VA, Klyuchnikova IA, Sokolova KA, Laptev GYu, Tyurina DG, Bolshakov VN

Animal Husbandry and Fodder Production. 2026. Vol. 109. No. 3. Р. 160-173.

doi: 10.33284/2658-3135-109-3-160

Original article

 

The effect of a multicomponent biopreparation on milk productivity and protein metabolism in highly productive cows

 

Igor V Gusarov1, Valentina A Filippova2,8, Irina A Klyuchnikova3, Ksenia A Sokolova4,9,

Georgy Yu Laptev5,10, Daria G Tyurina6,Vladislav N Bolshakov7

1A.S. Emelyanov Northwest Research Institute of Dairy and Meadow-Pasture Farming, Molotchnoye, Vologda region, Russia

2,3,,4,5Saint Petersburg State Agrarian University, Pushkin, Russia

6,7,8,9,10LLC “BIOTROF”, Saint Petersburg, Russia

1i-gusarov@yandex.ru, https://orcid.org/0000-0002-3497-3703

2,8filippova@biotrof.ru, https://orcid.org/0000-0001-8789-9837

3klyuchnikova.irinaa@yandex.ru, https://orcid.org/0009-0008-6484-1235

4,9kalitkina.xeniya@gmail.com, https://orcid.org/0000-0002-9541-6839

5,10georg-laptev@rambler.ru, https://orcid.org/0000-0002-8795-6659

6tiurina2@biotrof.ru, https://orcid.org/0000-0001-9001-2432

7bvn@biotrof.ru, https://orcid.org/0000-0001-9764-327X

Abstract. In the context of intensified dairy cattle production, one of the major challenges is the decreased efficiency of ruminal microbial protein synthesis in high-producing cows. The aim of this study was to evaluate the effects of the multicomponent bioproduct RUMIT PRO on milk yield and the physiological-biochemical status of blood, particularly parameters of protein metabolism, in high-yielding cows. Administration of the feed additive RUMIT PRO for 4 months resulted in an increase in average daily milk yield by 7.1 kg compared to the control group (P≤0.05). Comprehensive biochemical analysis of serum revealed positive modulation of key metabolic processes underlying this effect. Specifically, the level of gamma globulins, the fraction containing antibodies (immunoglobulins), was significantly increased under the influence of the feed additive in the second month of lactation: 23.80±2.10 g/L (experimental) versus 19.00±1.10 g/L (control) (P≤0.05).

Keywords: microbial protein, biopreparation, rumen, feed additives, microbiota

For citation: Gusarov IV, Filippova VA, Klyuchnikova IA et al. The effect of a multicomponent biopreparation on milk productivity and protein metabolism in highly productive cows. Animal Husbandry and Fodder Production. 2026;109(3):160-173. (In Russ.). https://doi.org/10.33284/2658-3135-109-3-160

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            Information about the authors: 

Igor V Gusarov, Cand. Sci. (Biology), Head of the Department of Feeds and Feeding of Farm Animals, AS Yemelyanov, North-West Research Institute of Dairy and Grassland Farming, 14 Lenina St., Molochnoe, Vologda, 160555, tel.: 8-8172-59-78-46.

Valentina A Filippova,  Head  of  the  Laboratory,  Department  of  Large  Animal  Husbandry,  VI Naumov Institute of Animal Husbandry and Aquaculture, Saint Petersburg State Agrarian University, 2A Petersburgskoe Highway, Pushkin, Saint Petersburg, 196601; Senior Biotechnologist, Molecular Genetic Laboratory, BIOTROF LLC, 4 Block, 1 Bldg., Warehouse Complex-3 Territory, Telmanovskoe Urban Settlement, Tosnensky District, Leningrad Region, 187015, tel.: 8-905-220-65-08.

Irina A Klyuchnikova, Postgraduate Student, VI Naumov Institute of Animal Husbandry and Aquaculture, Saint Petersburg State Agrarian University, 2A Petersburgskoe Highway, Pushkin, Saint Petersburg, 196601, tel.: 8-900-652-34-89.

Ksenia A Sokolova, Cand. Sci. (Biology), Senior Lecturer, Department of Large Animal Husbandry, VI Naumov Institute of Animal Husbandry and Aquaculture, Saint Petersburg State Agrarian University, 2A Petersburgskoe Highway, Pushkin, Saint Petersburg, 196601; Biotechnologist, Molecular Genetic Laboratory, BIOTROF LLC, 4 Block, 1 Bldg., Warehouse Complex-3 Territory, Telmanovskoe Urban Settlement, Tosnensky District, Leningrad Region, 187015, tel.: 8-988-627-33-85.

Georgy Yu Laptev, Dr. Sci. (Biology), Associate Professor, Professor, Department of Large Animal Husbandry, VI Naumov Institute of Animal Husbandry and Aquaculture, Saint Petersburg State Agrarian  University,  2A  Petersburgskoe  Highway,  Pushkin,  Saint  Petersburg, 196601;  Director,  BIOTROF   LLC, 4 Block, 1 Bldg., Warehouse Complex-3 Territory, Telmanovskoe Urban Settlement, Tosnensky District, Leningrad Region, 187015, tel.: 8-812-322-85-50.

Daria G Tyurina, Cand. Sci. (Economics), Biotechnologist, Molecular Genetic Laboratory, BIOTROF LLC, 4 Block, 1 Bldg., Warehouse Complex-3 Territory, Telmanovskoe Urban Settlement, Tosnensky District, Leningrad Region, 187015, tel.: 8-812-322-85-50.

Vladislav N Bolshakov,   Cand.   Sci.   (Agriculture),  Senior  Sales  Manager,  BIOTROF  LLC, 4 Block, 1 Bldg., Warehouse Complex-3 Territory, Telmanovskoe Urban Settlement, Tosnensky District, Leningrad Region, 187015, tel.: 8-812-322-85-50.

The article was submitted 30.03.2026; approved after reviewing 19.05.2026; accepted for publication 14.09.2026.

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