Marina Hassan, ,- and Muhammad Syafiq Izzuddin Abdul Hadi, ,- and Mohd Fazrul HisamAbd Aziz, ,- and Wahidah Wahab, ,- and Farizan Abdullah, ,- and Shuhaimi Deraman, ,- and Kismiyati, ,- and Mohd Ihwan Zakariah, ,- Histopathological changes in the intestine of Channa micropeltes infected with the cestode Senga rostellarae. IOP Conference Series: Earth and Environmental Science 370, 55. ISSN 1755-1307

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Abstract

Channa micropeltes or toman is a native freshwater fish species and not commercially species in Malaysia. The fish become one of the anglers’ attractions to Kenyir Lake, especially for recreational fishing purpose. However, parasitic diseases are one of the most common problems for this fish population. Studies on parasites of C. micropeltes is essential to our knowledge for the maintenance of natural resources. So, the objectives of this study were to identify the cestode and observe the histopathological changes on gastrointestinal tract of infected C. micropeltes. About 15 C. micropeltes were caught by using fishing rod. The fish were pithing, dissected and gastrointestinal tract was removed, then placed on petri dish. The stomach and intestine were fixed in 10% buffered formalin and proceed for preparing histology slides by using standard method for histology. Then, the tissues were stained by using hematoxylin and eosin (H & E) stain. The tissue changes were described. The cestodes were collected, fixed in 70% ethanol, stained with aceto-carmine and prepared the permanent slide. The cestodes morphology were observed under microscope for identification. In this study, only Senga rostellarae was identified. The histopathological changes showed the intestine with severe villus damage with destruction of villi epithelium and necrosis. Some areas with cross section of cestode showed increase of goblet cells and generated necrosis. Based on this study, S. rostellarae was a dominant species, and its activities caused severe damage to the fish intestine. The conditions can cause death to the fish due to hemorrhage and malabsorption of nutrien

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