Effect of Garlic Allium sativum (L.) Extract on disease induced common carp, Cyprinus carpio (L.)

The present investigation was carried out the effect of Allium sativum extract in different formulation, such as, 1g/100g, 2g/100g and 3g/100g of feed against Aeromonas hydrophila on common carp, Cyprinus carpio. The parameters such as, mortality, haemoglobin content, phagocytic activity and antimicrobial activity were studied. Results revealed that control fishes showed 30% mortality and 10% of mortality was observed 1g/100g garlic extract treated fishes remaining experimental groups showed no mortality. Similarly more haemoglobin content as well as phagocytic activity was observed experimental fishes than control fishes. The maximum antimicrobial activity was increased with increasing concentration of garlic extract.