Scanning morphology, prevalence and histopathology of some acanthocephalans infecting some River Nile fish
| Autor: | Eman K. A. Bazh, Awatef H. Hamouda |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty General Veterinary oreochromis niloticus Veterinary medicine 030231 tropical medicine Zoology Morphology (biology) 030108 mycology & parasitology Biology 03 medical and health sciences 0302 clinical medicine River nile acanthocephala SF600-1100 medicine histopathology Fish Histopathology lates niloticus human activities tilapia spp |
| Zdroj: | Bulgarian Journal of Veterinary Medicine, Vol 24, Iss 2, Pp 239-250 (2021) |
| ISSN: | 1313-3543 1311-1477 |
| Popis: | Acanthocephalan morphology and their adverse pathological impact on fish are of great concern. Two species of acanthocephalans were recorded from 800 samples of live freshwater fish collected randomly during 2017–2018 from Lake Nasser, Aswan, Egypt. The recovered species were identified morphologically as Acanthogyrus (Acanthosentis) tilapiae from three Tilapia spp. (Sarotherodon galilaeus, Oreochromis niloticus and Tilapia zillii) and Rhadinorhynchus niloticus from Lates niloticus. The intensity of parasitic infection and the seasonal prevalence were higher in L. niloticus than in Tilapia spp. The clinical signs and post mortem lesions of infected fish were reported. Morphological description of the detected parasites using light microscope was then confirmed by electron microscopy to amplify ambiguous details. The histopathological findings of the intestine of naturally infected fish with acanthocephalan parasites were investigated and described. The main damage caused by them is destruction of the mucosal epithelium of the villi, necrosis and degeneration of intestinal epithelial cells. |
| Databáze: | OpenAIRE |
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