Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5540466 | Fish & Shellfish Immunology | 2017 | 25 Pages |
Abstract
This study examined the effects of an herbal extract composed of nine herbs i.e Aloe vera, Andrographis pariculata, Annona squamosa, Azadirachta indica, Citrus aurantifolia, Coriandrum sativum, Ocimum sanctum, Ollium cepa and Psidium guajava on growth, survival rate and immunoprotection against pathogenic Vibrio harveyi in the tiger shrimp Penaeus monodon. The petroleum ether, methanol and N-hexen extracts of different herbal plants were selected, processed and thoroughly mixed in equal proportions and added to the shrimp diets at a concentration of 1.0, 2.5 and 5.0 mL kgâ1. After 60 days of feeding, shrimps were challenged with V. harveyi bacteria (1 Ã 107 cells mLâ1), which were isolated and propagated from the infected shrimps. The shrimps fed on diets with methanolic extraction of 2.5 mL kgâ1 had significantly (P < 0.001) higher survival rate (76%), specific growth rate (4.26 ± 0.11%) and better food conversion ratio (1.5) than the other groups. This study indicates that addition of methanolic herbal extracts of 2.5 mL kgâ1 can positively influence the immune response of tiger shrimp against V. harveyi infection.
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Authors
Sheikh AftabUddin, Mohammad Abdul Momin Siddique, Shaharin Salma Romkey, William L. Shelton,