A survey of infectious pathogens agents of the black Nile Tilapia Oreochromis niloticus and red tilapia Oreochromis sp. in aquaculture systems, Bafq, Yazd

Document Type : article

Authors

1 Deputy National Research Center of saline Water Aquatics

2 Assistant Professor National Reserach Center of Saline Water Aquatics

3 National Research Center of Saline Water Aquatics

4 Iranian Fisheries Science Research Institute

5 Head of fish health and disease department/ Inland waters aquaculture research center

Abstract

Aquaculture diseases and its damages have affected the aquaculture industry around the world. Tilapia is newly introduced to the aquaculture industry of Iran. While tilapia is a tolerant fish, there are reports of infectious diseases, and it is essential to plan for their prevention and control. Health surveys of tilapia breeding indoor systems were carried out at the National Research Center of Saline Water Aquatics (Bafq, Yazd) in 2012-2014. Parasitic, bacterial, fungal and viral studies of eggs, fries, brooders and cultured fish were performed by observing abnormal movement, nutrition and symptoms of the fish as well as unusual mortality. Infection with parasitic agents Gyrodactylus sp. and Dactylogyrus sp., bacterial agents Streoptococcus sp. and Edwardsiella sp. and fungi of Penicillium sp. and Aspergillus sp. determined. The samples were negative for Herpesvirus, EHNV and BIV viruses. Although pathogens and disease factors have been rarely observed in the Nile tilapia Oreochromis niloticus and red hybrid tilapia, monitoring and enforcement of health guidelines is particularly important in preventing disease.

Keywords

Advanced Aquaculture Sciences Journal
Volume 3, Summer
July 2019
Pages 15-26

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