DIAGNOSA PENYAKIT BAKTERIAL PADA IKAN NILA (OREOCRHOMIS NILOTICUS) YANG DI BUDI DAYA PADA JARING TANCAP DI DANAU TONDANO
ABSTRACT: This research aimed
to diagnose bacterial diseases on nile tilapia cultured in stick net cage in
Lake Tondano. Fish samples were taken from three locations of net cages in Lake
Tondano namely Paleloan, Eris and Remboken villages. Three samples of fish were
taken from each location/village. The samples taken showed clinical symptoms of
bacterial infection such as hemorrhagic on the abdomen, the base of the fin,
anal and chest, irregular swimming fish, hemorrhagic on the gills, fish refuse
food, remain silent on the outskirts of net cage. Bacteria were isolated by using
a sterile loop from head kidney (anterior kidney), which is located on the
front, below the spine near the head. Bacterial cultures were performed on TSA
media by making a zigzag scratches. The petri dish containing bacterial
isolates were subsequently incubated in an incubator at a temperature of 35oC
for 24 hours. The water quality parameter data measured consisted of
temperature, Dissolved Oxygen, pH, ammonia, brightness. The results of the
study showed that farmed tilapia in Lake Tondano has been infected with
Aeromonas hydrophila that causes MAS (Motile Aeromonad Septicemia). The water
quality, both chemical and physics around the net cages in the Lake Tondano was
still in good condition and suitable for fish cultivation.
Penulis: Chairanitansyah
Ashari, Reiny A Tumbol, Magdalena E.F Kolopita
Kode Jurnal: jpperikanandd140098
