Microbial Flora of Artificial Fish Diets
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概要
- 論文の詳細を見る
Twenty different fish diets marketed in Japan were examined for the microbial flora.The total counts of aerobic bacteria determined at 30°C ranged from 1.8×10<SUP>3</SUP> to 8.0×10<SUP>5</SUP> pergram of diet with a mean value of 1.4×10<SUP>5</SUP>. The microflora of these diets were consisted mainly of Gram-positive bacteria, and the most predominant organisms belong to the genus Bacillus and Staphylococcus. The total fungal plate counts determined at 20°C ranged from 4.0×10 to 9.6×10<SUP>4</SUP>/g. of the diet with a mean value of 1.1×10<SUP>4</SUP>/g. Coliform organisms were detected in 16 samples and Escherichia coli was isolated from 10 out of the 16 samples. Streptococcus were found in 4 samples. No Salmonella was detected but Vibrio was detected in 3 out of the samples. Clostridium perfringens producing lecithinase was isolated from 10 out of the 20 samples.
- 日本魚病学会の論文
著者
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KITAO Tadatoshi
Department of Fisheries, Faculty of Agriculture, Miyazaki University
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Aoki Takashi
Department Of Aquatic Bioscience Tokyo University Of Fisheries
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KITAO Tadatoshi
Department of Fisheries, Faculty of Agriculture, University of Miyazaki
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