Aerobic Microflora In The Fecal Pellets of Snakehead (Channa striata) Juveniles
Aerobic Microflora in the Fecal Pellets of Snakehead (Channa striata) Juveniles. International Conference of Aquaculture Indonesia 2014. Snakehead has long history as consumed freshwater fish in East Kalimantan, and is cultured in wooden fish pens in the river and swamp areas. In 1983 cultured snakehead were infected with Aeromonas hydrophila and resulted in serious economic loss in aquaculture facilities. Therefore, in this study the bacterial composition of fecal pellets of snakehead juveniles was investigated to understand the presence of genus Aeromonas in freshwater fish. The fecal pellet were collected from 5 juveniles of snakehead and inoculated onto TSA and
1/20 PYBG media, and incubated at 30ēC for 48 hours. The viable counts of fecal pellets ranged from 3.6
×105 CFU/g to 8.6 ×1011 CFU/g. The generic composition of isolates was Vibrio-Aeromonas 58.3 to 100% (detected in 3 fish), Acinetobacter 8.3 to 50% (detected in 2 fish), Moraxella 8.3 to 100% (detected in 4 fish), Pseudomonas-Alteromonas group 4.2 to 8.3% (detected in 2 fish), and coryneforms 4.2% (only in 1 fish). This result strongly suggested that the Vibrio-Aeromonas group was the major component in the intestinal tracts of snakehead juveniles.