Sustainable Aquaculture and Health Management Journal
نشریه آبزی پروری پایدار و مدیریت بهداشتی
Sustainable Aquaculture. Health. Management. J.
Agriculture
http://ijaah.ir
1
admin
2821-1383
10.52547/ijaah
14
13
en
jalali
1398
8
1
gregorian
2019
11
1
5
2
online
1
fulltext
en
First Report of Ichthyophoniasis in Angelfish, Pterophyllum altum, and Histopathology Study of Infected Fish
Fungal Diseases
Fungal Diseases
پژوهشي
Original research papers
<div style="text-align: justify;"><em>Ichthyophonus</em> is a unicellular fish parasite with a range of hosts and therefore a lot of economic losses. In this study, <em>Ichthyophonus </em>infection was reported in diseased angelfish, <em>Pterophyllum altum</em>. Samples were provided from three angelfish referred to veterinary hospital and examined by routine methods. The fish were lethargic with mild symptoms of chronic disease. According to a spherical shape and globular morphology of agent (characteristic spores surrounded by a thick fibrous membrane seen in squash preparations made from heart and spleen) and further histopathology and culture results, agent was described as <em>Ichthyophonus hoferi. </em>The result showed two main phases in the life of infecting parasites, 'active' and 'passive', the passive form is prone to convert to active. As another result, white-cream cysts were seen in infected organs. The most obvious macroscopic symptom of ichthyophonosis in angelfish was the spots on the skin and nodules in the heart. The cysts were filled with schizonts that were surrounded by fibroblasts, collagen fibers and many eosinophilic inflammatory cells. In the next step, tissue samples were also separated and incubated into Minimum Essential Medium (MEM) to see the germination of <em>Ichthyophonus hoferi</em>. This test was suggested for recognizing <em>Ichthyophonus</em> from Mycobacterial infections.<br>
</div>
Ichthyophonus hoferi, Histopathology, Angelfish, Ornamental fishes, Cysts
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http://ijaah.ir/browse.php?a_code=A-10-231-1&slc_lang=en&sid=1
R
Rahnama
royarahnama60@yahoo.com
10031947532846002317
10031947532846002317
Yes
Department of Aquatic Animal Health and Diseases, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
R
Peyghan
rpeyghan@yahoo.com
10031947532846002318
10031947532846002318
No
Department of Aquatic Animal Health and Diseases, Faculty of Veterinary medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran