FISH CULTURE

Streptococciasis Disease Cause: Streptococcus agalactiae, S. iniae, Bio - Ecology of pathogens: • gram-positive bacteria, small round (cocci), joined chain-like, non-motile, transparent and smooth colonies. • Streptococcus iniae Infection often occurs in sea water fish farming (snapper, grouper), whereas S. agalactiae is more commonly found in freshwater fish farming (tilapia). • The pattern of attacks are generally two types of bacteria are chronic - acute. • Target organs of infection of Streptococcus spp. commonly found in the brain and eyes. so-called "syndrome, meningoencephalitis and panophthalmitis". The disease is frequently reported in intensive aquaculture systems, aquatic environment calm (stagnant) and / or recirculation systems, • Cumulatively, the attack of this disease can cause mortality of 30-100% of the total population during the maintenance period: and this disease is a potential obstacle that must be anticipated with respect to intensification and i

Columnaris Disease Cause: Flavobacterium columnare or Fexibacterium columnare Bio-Ecology of pathogens: • Bacteria gram negative, small rod-shaped, movable slide, and there in freshwater ecosystems. • The nature of these bacteria are grouped to form a collection such as the column. • The attacks often occur in groups of fish after transportation. • The nature of the attacks are generally sub-acute - acute, when the dominant gill as a target organ, the fish will suffocate and the resulting deaths could reach 100%. Clinical symptoms: • sores around the mouth, head, body or fins. Brownish white sores then develop into ulcers. • infection around the mouth, looks like the lining of yarn (thread-like) so it is often called the disease "mouth fungus". • All around the wound is covered by the bright yellow pigment. • If the infected gills, damage starts from the tip of the gill filaments and spread to the base, filaments eventually rot and fall out (gill rot). Diagnosis: • Observatio