ABSTRACT
Fish serves as food for mankind. Flesh of fish is a perishable commodity. A study was taken to ascertain the pathogenicity of Aeromonas hydrophila; Pseudomonas aeruginosa and Vibrio parahaemolylicus on Indian major carps Catla catla and Labeo rohita. Among the three bacteria used, Aeromonas hydrophila was more pathogenic followed by Vibrio parahaemolyticus and Pseudomonas aeruginosa. Among the carps tested Catla catla was found to be more susceptible than Lobeo rohita. The major biochemical components such as the protein, carbohydrate and lipid levels showed significant variation between the control and infected groups [p<0.05] Morphological chances like yellow coloured abdomen, haemorrhage on the head region, swelling of the abdomen, accumulation of fluid in the abdomen and necrosis of the internal organs were observed in the Aeromonas hydrophila and Vibrio parahaemolyticus infected carps
ABSTRACT
This paper describes the detection of virus by using polymerase chain reaction and histopathological changes occurred in WSBV infected post larvae of Penaeus monodon. The affected shrimp showed red coloured body exhibiting type II outbreak. In histopathology, hypertrophied nuclei and eosinophilic inclusions were observed
ABSTRACT
Various antibiotics belonging to beta lactum, Rifampicin, Tetracycline, Quinolone, Aminoglycoside and synthetic groups were selected against vibrio species viz. V.fluvialis, V. furnissi, and V. splendidus, isolated from the diseased Penaeus monodon. The study revealed that among 15 antibiotics used, 12 showed sensitivity against V. fluvialis. In Vibrio furnissi among 16 antibiotics tested, 11 showed sensitivity, among 21 antibiotics tested, against V. splendidus, showed sensitivity against 14 antibiotics. Various antibiotics tested, ciprofloxacin was found to be more effective against all the test organisms