Argulosis, caused predominantly by Argulus siamensis is a threatening ectoparasitic disease of Indian carp aquaculture. Vaccination against this parasite is a safe alternative to the harmful chemicals used for its control. Nitric oxide (NO), a signaling molecule plays an important role in immune mediated functions in different parasitic diseases. | Elevation of nitric oxide level in rohu Labeo rohita in response to immunization with whole antigens of fish ectoparasite argulus siamensis
