Alabalık Yavrularında Görülen Hexamitozisin Tanı ve Tedavisi

Bu çalışmada, 0,5-10 gr’lık gökkuşağı alabalığı (Oncorhynchus mykiss) yavrularında öldürücü bir hastalık olan hexamita enfestasyonu Türkiye’nin Doğu Karadeniz bölgesindeki farklı alabalık çiftliklerinde 2006 ve 2012 yılları arasında araştırılmıştır. Aylık olarak 360 hasta balık muayene edilmiştir. En yoğun ölüm oranı ilkbahar ve sonbahar aylarında görülmüş ve enfestasyonları yıl boyu devam etmiştir. Tanı ışık mikroskobunda bağırsaktan alınan dışkı içeriğinde hexamita’nın gözlemlenmesi ile yapılmıştır. Albendazol, metronidazole, trichlorfon, toltrazuril ve magnezyum sülfat gibi farklı kemoterapotiklerin enfestasyonun tedavisi için gökkuşağı yavrularına uygulanmıştır. Albendazol ve metronidazole en etkili tedavi edici olarak bulunmuştur.

Identification and Treatment of Hexamitiasis Observed in Rainbow Trout (Oncorhynchus mykiss) Fry

In this study, hexamitiasis which is a fatal disease in 0.5-10g of rainbow trout fry in different fish farms in the Eastern Black Sea Region of Turkey was investigated between 2006 and 2016. A total of 360 diseased fish was examined monthly. The highest mortality rate in fish was observed in spring and autumn months and their infestation continued throughout the year. Diagnosis was made by observation of the hexamita in feces contents from gut in light microscopy. Different chemotherapeutics such as albendazol, metronidazole, trichlorfon, toltrazuril and magnesium sulphate were applied on rainbow trout (Oncorhynchus mykiss) fry for treatment of infestation. Albendazol and metronidazole were founded as the most effective treatment.

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