Effect of drinking a metabiotic feed additive on the growth of calves
https://doi.org/10.31677/2072-6724-2025-77-4-187-196
Abstract
The administration of the investigated metabiotic feed additive to calves demonstrated a positive impact on growth performance. The inclusion of this additive into the diet, which comprised culture fluids with metabolites from Bacillus pumilus B-13250 and Kluyveromyces lactis in a 50:50 ratio, resulted in a statistically significant increase in the live weight of the experimental group compared to the control group. By the end of the first month, the experimental calves were heavier by 4.5 kg (7.2 %, p < 0.05). This difference increased to 7.6 kg (9.3 %, p < 0.05) at the end of the second month and reached 15.2 kg (14.7 %, p < 0.001) by three months of age. The average daily gain (ADG) during the initial application period (0–1 month) was significantly higher in the experimental group by 123.8 g (20.3 %, p < 0.01). From the first to the second month, the ADG remained significantly elevated by 100.0 g (16.2 %, p < 0.01), and between the second and third months, the ADG in the experimental group was 995.2 g, which exceeded the control by 257.1 g (34.8 %, p < 0.001). Furthermore, the calf survival rate was 100 % in the experimental group, compared to 90 % in the control group. The specific metabolite ratio from B. pumilus and K. lactis also positively modulated the gut microbiota in the large intestine, leading to a 6.7 % increase in mesophilic aerobic and facultative anaerobic microorganisms, a 93.5 % rise in lactic acid bacteria, alongside a 52.2 % reduction in coliform bacteria and a 16.7 % decrease in microscopic fungi.
About the Authors
T. V. Kureninova
Federal Altai Scientific Center of Agrobiotechnology
Russian Federation
Russian Federation
Candidate of Agricultural Sciences, Leading Researcher at the Animal Science Laboratory of the Federal Agency for Agricultural Development
Barnaul
I. A. Pushkarev
Federal Altai Scientific Center of Agrobiotechnology
Russian Federation
Russian Federation
Candidate of Agricultural Sciences, Leading Researcher at the Animal Science Laboratory of the Federal Agency for Agricultural Development
Barnaul
V. A. Martynov
Beta-Trade LLC
Russian Federation
Russian Federation
Candidate of Agricultural Sciences, Feed Specialist
Barnaul
I. Yu. Evdokimov
Altai State University
Russian Federation
Russian Federation
PhD in Biology, Acting Deputy Director, Researcher at the Prombiotech Engineering Center
Barnaul
A. N. Irkitova
Altai State University
Russian Federation
Russian Federation
Candidate of Biological Sciences, Associate Professor, Acting Director, Leading Researcher at the Prombiotech Engineering Center
Barnaul
D. E. Dudnik
Altai State University
Russian Federation
Russian Federation
Junior Researcher at the Prombiotech Engineering Center
Barnaul
M. V. Shirmanov
Altai State University
Russian Federation
Russian Federation
Junior Researcher at the Prombiotech Engineering Center
Barnaul
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Review
For citations:
Kureninova T.V., Pushkarev I.A., Martynov V.A., Evdokimov I.Yu., Irkitova A.N., Dudnik D.E., Shirmanov M.V. Effect of drinking a metabiotic feed additive on the growth of calves. Bulletin of NSAU (Novosibirsk State Agrarian University). 2025;(4):187-196. (In Russ.) https://doi.org/10.31677/2072-6724-2025-77-4-187-196
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