Cappilariosis in breeder discus (Symphysodon aequifasciatus) in Iran

• Published in: Journal of agricultural sciences (Belgrade, Serbia) Vol. 55; no. 3
• Main Authors: Rahmati-holasoo, H., University of Tehran, Tehran (Iran Islamic Republic). Faculty of Veterinary Medicine, Department of Aquatic Animal Health, Mousavi, H.E., University of Tehran, Tehran (Iran Islamic Republic). Faculty of Veterinary Medicine, Department of Aquatic Animal Health, Soltani, M., University of Tehran, Tehran (Iran Islamic Republic). Faculty of Veterinary Medicine, Department of Aquatic Animal Health, Hosseini, S., University of Tehran, Tehran (Iran Islamic Republic). Faculty of Veterinary Medicine, Department of Parasitology, Ghadam, M., University of Tehran, Tehran (Iran Islamic Republic). Faculty of Veterinary Medicine, Department of Aquatic Animal Health, Samani, R., University of Tehran, Tehran (Iran Islamic Republic). Faculty of Veterinary Medicine, Department of Pathobiology
• Format: Journal Article
• Language: English
• Published: 2010
• Subjects: CAPILLARIA; http://www.fao.org/aos/agrovoc#c_1269; http://www.fao.org/aos/agrovoc#c_36153; http://www.fao.org/aos/agrovoc#c_3940; http://www.fao.org/aos/agrovoc#c_43737; http://www.fao.org/aos/agrovoc#c_5111; INFECCIONES POR NEMATODOS; IRAN ISLAMIC REPUBLIC; IRAN RAPUBLIQUE ISLAMIQUE; IRAN REPABLICA ISLAIMICA; LAVAMISOLE; LEVAMISOL; LEVAMISOLE; NAMATODOSE; NEMATODE INFECTIONS; SYMPHYSODON AEQUIFASCIATA
• ISSN: 1450-8109

The global ornamental fish trade is a rapidly growing industry. Cultivation and propagation of ornamental fishes have been increasing in the last 20 years in Iran. Discus (Symphysodon aequifasciatus) from Cichlidae is one of the most popular and expensive aquarium fish. In the past few years farming of this fish has been well developed in Iran. Two breeder discus fish (Symphysodon aequifasciatus) from two different propagation centres (with high mortality) with signs of anorexia, loss of balance, moribundity and darkness in skin colour were referred to Laboratory of Aquatic Diseases of Veterinary Faculty, University of Tehran. After the survey of ectoparasites, necropsy was performed under aseptic conditions; bacterial culture on standard media was done and the alimentary canal was extruded. In both fish no ectoparasite was detected and no bacteria from these cases grew on the standard media. In internal survey 5 and 25 nematodes were detected in each fish. A high number of free eggs were observed in intestine of fish. Regarding morphological characteristics of the nematodes and their eggs, they were identified as Capillaria sp. Treatment of other fish with levamisole was effective and the loss was terminated. Some helminthes like Capillaria pterophylli Heinze, 1933, can cause a high mortality in cichlid aquarium fishes. This study showed that infection with some species of Capillaria could cause a heavy loss in ornamental fish from Cichlidae. Diagnosis of parasites of these fishes can help us to prevent high mortalities.