The influence of probiotics of various microbiological compositions on the growth, interior parameters and microflora of the digestive tract of juvenile sterlet (Acipenser ruthenus L. 1758)
https://doi.org/10.36038/0131-6184-2025-2-91-99
EDN: OCCVAN
Abstract
The paper presents the results of a production experiment with young sterlet (Acipenser ruthenus L. 1758) conducted at the fish-breeding enterprise OOO Novaya Akvakultura in the Tyumen Region in a closed water supply system. The aim of the study was to assess the effect of probiotics on the results of growing young sterlet (Acipenser ruthenus L. 1758). Probiotics of various microbiological compositions were added to the diet of young sterlet in the experimental groups at a rate of 0.5 g per kg of feed. The inclusion of probiotic organisms in the diet ensured an increase in the absolute growth rate of juveniles of the experimental groups by 23.29 and 22.14% compared with the control group, contributed to a decrease in opportunistic microflora in the spiral intestine, which is confirmed by a decrease in CFU/ml of Bacillus mesentericus, Bacillus cereus and the absence of Bacillus mycoides, Acinetobacter calcoaceticus, Citrobacter freundii. The profile of the interior features of the studied groups was within acceptable values. In juveniles of the experimental groups, compared with the control, there was a smaller difference in the intestinal index – 3-8%, gills – 7-8% and gonads – 3-10%.
Keywords
Supporting agencies: research work carried out within the framework of the grant “Priority-2030”.
About the Authors
K. R. Tsitskieva
Tyumen State University
Russian Federation
Russian Federation
Karina R. Tsitskieva – Postgraduate Student of the Department of Zoology and Evolutionary Ecology of Animals
625043, Russia, Tyumen, Pirogova str., 3
F. K. Betlyaeva
Tyumen State University
Russian Federation
Russian Federation
Faniya K. Betlyaeva – Candidate of biological Sciences, Associate Professor of department of zoology and evolutionary ecology of animals
625043, Russia, Tyumen, Pirogova str., 3
Yu. V. Markin
Russian State Agrarian University – Timiryazev Agricultural Academy
Russian Federation
Russian Federation
Yuri V. Markin – Doctor of Biology, Professor of the Department of Feeding
127550, Moscow, Timiryazevskaya str., 48
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Review
For citations:
Tsitskieva K.R., Betlyaeva F.K., Markin Yu.V. The influence of probiotics of various microbiological compositions on the growth, interior parameters and microflora of the digestive tract of juvenile sterlet (Acipenser ruthenus L. 1758). Fisheries. 2025;1(2):91-99. (In Russ.) https://doi.org/10.36038/0131-6184-2025-2-91-99. EDN: OCCVAN
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