Abstract:
Nineteen products of traditionally processed Alestes spp., Hydrocynus spp., Clarias spp., Labeo
spp., Oreochromis niloticus and Synodontis spp., freshwater fish were studied for their bacteria
species according to (Bergey's manual). Enterobacter aerognenes, Escherichia coli, Klebsilla
pneumoniae (gram negative) and Staphylococcus sp. and Micrococcus spp. (gram positive) were
recorded. The bacterial count differs with respect to media and dilution used. Mature wet salted
Hydrocynus spp. (S12) and Alestes spp. (S6); Alestes each cultured in PCA and Hydrocynus spp.
(Maloha) (S15) cultured in PCA+ showed uncountable bacterial number. Enterobacter
aerognenes and E. coli co-existed in isolates I16 from 8 days old Alestes spp. and isolate I93
from mature Alestes spp. Potato Dextrose Agar showed no bacterial growth in the 7 dilutions
used, and for the 19 fish samples. Enterobacter aerognenes E. coli and K. penumoniae isolates
responded positively to lactose test but with different levels to citrate test. Only K. pneumonia
responded to Urea's test. |
