Prevalence of nodular parasitic diseases in freshwater fishes in Egypt: A Review

Authors

1 professor of fish diseases and management, Faculty of Veterinary Medicine, Benha University

2 Aquatic animal Medicine, faculty of veterinary medicine, Benha University

3 Aquatic animal Medicine, Benha University

4 Department of Aquatic animals diseases and Management, Faculty of veterinary medicine, Benha university

5 Aquatic Animal Medicine, Benha University

6 Aquatic animal medicine, Benha University

7 aquatic animals medicine, veterinary medicine, Benha university

8 Aquatic animals medicine.benha University.Egypt

Abstract

Aquaculture has significant potential to contribute substantially to food security and enhance export incomes. Diseases have emerged as a significant limitation to aquaculture output on a global scale, hindering the progress of both economic and social development worldwide. Several factors contribute to the incidence of fish diseases such as intensification, environmental contamination, climatic changes, lack of effective biosecurity measures, lack of aquaculturist awareness on diseases and its control. Freshwater fish intensification led to various infectious viral, bacterial, fungal, and parasitic disease outbreaks, resulting in high mortality and significant economic losses. Therefore, aquaculture sustainability is facing challenges due to infectious diseases particularly parasitic, which constitute more than 80% of fish diseases in Egypt. Parasitic diseases of fish have greatly reduced fish survivability, growth performance, and reproductivity leading to loss of fish production due to high mortalities and pathological changes in infected organs. The present review deals with parasitic diseases that have severe economic concern for freshwater fishes and has zoonotic importance.

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