Article

Probiotic Bacillus amyloliquefaciens B-1895 improved growth of juvenile trout

Elena N. Ponomareva1,2,*, Marina N. Sorokina1, Vadim A. Grigoriev1, Mariya Mazanko2, Vladimir A. Chistyakov2,3, Dmitry V. Rudoy2
Author Information & Copyright
11Federal Research Center, Southern Scientific Center of the Russian Academy of Sciences, Rostov-on-Don, 344006, Russia
2Center for Agrobiotechnology, Don State Technical University, Rostov-on-Don, 344002, Russia
3Southern Federal University, Rostov-on-Don, 344006, Russia
*Corresponding Author: Elena N. Ponomareva. E-mail: kafavb@mail.ru.

© Copyright 2023 Korean Society for Food Science of Animal Resources. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: Oct 02, 2023 ; Revised: Nov 13, 2023 ; Accepted: Nov 16, 2023

Published Online: Dec 19, 2023

Abstract

This study was aimed at evaluating a novel Bacillus amyloliquefaciens B-1895 probiotic as a feed supplement for farmed trout. The final weight, indicators of absolute and average daily growth of fish, and the average daily growth rate were all higher in the probiotic group than the control (P<0.05). Moreover, probiotic-fed trouts had a more intensive growth rate than the control group (higher by 15.7%; P<0.05). A decrease in the feed coefficient was also observed in the probiotic group (decreased 25%; P<0.05), which indicated more effective digestion and assimilation of feed. For the probiotic group, a higher survival rate was observed compared to the control group (3% higher; P<0.05). In general, the introduction of probiotic in feed had no negative effect on the functional status of fish.

Keywords: aquaculture; rainbow trout; probiotics; growth; survival