TILAPIA (Oreochromis niloticus) BALIĞI DOKULARINDA PROTEİN VE Pb DÜZEYLERİ ÜZERİNE Pb VE Pb+Zn KARIŞIMININ ETKİSİ

Year 2016, Volume: 11 Issue: 4, 19 - 27, 13.10.2016

Gülbin Gök

Abstract

Balıklar ekosistem içerisinde insanlar tarafından tüketilen önemli bir protein kaynağıdır. Bu çalışmada Afrika kökenli tatlı su çipurası Oreochromis niloticus’un solungaç ve kas dokularında kurşunun (Pb) toksik etkisi incelenmiştir. Balıklar 7, 14 ve 28 günlük sürelerle Pb (0.1 ve 0.5 mg/L Pb) ve Pb+Zn (çinko)(0.1+0.5 mg/L Pb+Zn ve 0.5+2.5 mg/L Pb+Zn) konsantrasyonlarına maruz bırakılmıştır. Dokuların protein miktarı U.V spektrofotometrik yöntem ile incelenmiştir. Dokulardaki Pb birikimi ise Atomik Absorbsiyon Spektrofotometresiyle belirlenmiştir. Pb ve Pb+Zn etkisinde dokulardaki Pb birikimi kontrol grubuna göre önemli bir şekilde artarken protein düzeyi azalmıştır. Pb birikimi solungaçta daha fazla bulunmuştur. Çalışılan tüm sürelerde Zn’nin O. niloticus dokularında Pb birikimini önemli ölçüde azalttığı saptanmıştır. 

Keywords

Oreochromis niloticus, Kurşun, Çinko, Protein Düzeyi, Toksisite

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