INTERNATIONAL JOURNAL OF AGRICULTURAL TECHNOLOGY

Volume 15, No. 06, Month NOVEMBER, Year 2019, Pages 845 - 858

The impact of a mixture of biofloc fermentation medium and vinasse on attractability, palatability, and antibacterial properties against multi-antibiotic resistant aeromonas veronii

Chirapongsatonkul, N., Srichanun, M. and U-taynapun, K.

Abstract Download PDF

The diverse natural products have been developed to replace antibiotics and chemicals used in aquaculture. The discovered products mostly contribute to the enhancement of aquatic animal immunities and control bacterial pathogens. However, in-feed application of these substances has been noted for its negative effects on attractability and palatability. A mixture of biofloc fermentation medium after harvesting the biomass and vinasse, residues from bioethanol production, (PBFCM) was developed and tested for its potential. The results from the in vivo trial revealed that PBFCM was able to increase the attractability and palatability of soybean meal and herbivorous fish feed (25% protein) in juvenile Nile tilapia (Oreochromis niloticus). Moreover, PBFCM was capable of inhibiting the growth of the multiantibiotic resistant Aeromonas veronii, a pathogenic bacterium which causes losses in freshwater aquaculture. The obtained results showed that PBFCM not only increased the consumption of feedstuff but also exhibited inhibitory activity. This finding may contribute to sustainable aquaculture by delivering an effective natural product sourced from valueless materials.

Keywords

Attractability, Biofloc fermentation medium, Multi-antibiotic resistant Aeromonas veronii, Palatability, Vinasse

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