Cafer BULUT, AYŞEGÜL KUBİLAY, Zübeyde HANOL BEKTAŞ, Belkıs BİRDEN

Histopathological Effects of Formaldehyde (CH2O) on Rainbow Trout (Oncorhynchus mykiss Walbaum, 1792)

Formaldehit su ürünleri sektöründe balık hastalıklarının kontrolü ve dezenfektan olarak yaygın olarak kullanılmaktadır. Ancak, bu durum çeşitli çevresel olumsuzluklara sebep olabildiği gibi, uygulama yapılan balıklarda da olumsuz etkilere neden olabilmektedir. Bu çalışmada 250 mg/L (1 saat) ve 500 mg/L (45 dk) konsantrasyonlarında formaldehit uygulanmıştır. Çalışma sonucunda elde edilen histopatolojik bulgularda formaldehit uygulanan balıkların solungaç lamellalarda pilar ve epitel hücrelerinde dejenerasyon, interlamella alanlarda lenfoid ve mononükleer hücre infiltrasyonu ve nekroz, kas dokularında dejenerasyon, karaciğerlerinde genleşme, venalarında konjesyon, damarlarda hasar ve hepatositlerde dejenerasyon belirlenmiştir. Sonuç olarak formaldehit uygulamasının gökkuşağı alabalıklarında histolojik olarak olumsuz etkilere neden olduğu görülmüştür. Bu nedenle su ürünleri işletmelerinde bilinçli ve ihtiyaç dahilinde kullanılması gerektiği kanaatine varılmıştır

Gökkuşağı Alabalıklarında (Oncorhynchus mykiss Walbaum, 1792) Formaldehit (CH2O)’in Histopatolojik Etkileri

Formaldehyde is commonly used as a disinfectant and also in a control of fish disease in aquaculture sector. However, this widespread use, can lead to environmental degradation and can cause negative effects on the treated fish with. In this study 250 mg/L (1 hour) and 500 mg/L (45 min) concentrations of formaldehyde were used. From the results of the histopathological findings degeneration was determined in the epithelial cells and pilar in the gill lamellae, lymphoid infiltration interlamellar necrosis and degeneration of the muscle tissue, dilatation in the liver, congestion in veins, degeneration in hepatocytes, damage in the blood vessels of fish which were treated with formaldehyde. In conclusion; formaldehyde was found to have a negative impact in histological examination in applied rainbow trout. Therefore, it was concluded that it should be used consciously and according the needs in aquaculture

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