NECROSIS OF APPENDAGES
SIGNS AND SYMPTOMS
The tips of walking legs, swimmerets and uropods undergo necrosis and become brownish black. The setae, antennae and appendages may be broken and melanized.
CAUSE
The epibiotic bacteria such as Vibrio spp., Pseudomonas spp., Aeromonas spp. and Flavobacterium spp.
DIAGNOSSIS
Based on gross signs and symptoms
PREVENTION
Maintain good water qaulity. Stock at optimum density. Avoid unnecessary handling of the shrimps, which may lead to injuries and necrosis.
CONTROL
Induce moulting by applying 5-10 ppm teaseed cake.
