ORIGINAL RESEARCH
Survival of Bacterial Strains in Fish Feeds Stored in Different Temperatures
I. Zmyslowska, D. Lewandowska
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University of Warmia and Masuria in Olsztyn, Faculty of Environment Protection and Fisheries, Department of Environmental Microbiology, Prawochenskiego 1, Olsztyn, Poland
Pol. J. Environ. Stud. 1999;8(6):447-451
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ABSTRACT
Studies were carried out on the survival of six strains of bacteria: Pseudomonas fluorescens, Pseudomonas aeruginosa, Escherichia coli, Streptococcus faecalis, Bacillus subtilis and Bacillus cereus in fish feeds stored for 72 days in -11°C, 5°C and 20°C.
On the last day of the study live cells of all bacterial strains were found in the feed stored in -11°C, of three strains in 5°C and two in 20°C.
Two strains, Bacillus subtilis and Bacillus cereus survived throughout the whole storage period in all three temperatures.