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PATHOLOGICAL STUDY OF LETHAL CONCENTRATION OF N-ZNO IN COMMON CARP CYPRINUS CARPIO L.
د ا رسة مرضية للتركيز المميت لصغائر اوكسيد الخارصين في اسماك الكارب الشائع Common carp (Cyprinus carpio L.)

Author: S.K.I.AL-Taee A.H.A.AL-Hamdani شهباء خليل اب ا رهيم الطائي ألاء حسين علي الحمداني
Journal: Basrah Journal of Veterinary Research. مجلة البصرة للابحاث البيطرية ISSN: Print:18138497 E; 24108456 Year: 2013 Volume: 12 Issue: 1 Pages: 200-207
Publisher: Basrah University جامعة البصرة

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Abstract

The lethal concentration of N-ZnO was determined in this study ,juvenile Cyprinus carpio L.mean weight 150±10g which were exposed to different concentration of N-ZnO (10-50 PPM) for 24 hrs ,the mortality rate of fish reached to 100% at 50 ppm concentration while the percentage decreased to 50% when the fish exposure to 30ppm concentration of N-ZnO.The histopathological lesions in the kidney were characterized by hemorrhage in an interstitial nephrotic tissue ,infiltration of inflammatory cells , there was cloudy swelling in the renal tubules . In the gill there were hyper trophy of pillar cells and necrosis in the secondary gill filaments .There were necrosis in the hepatic tissue and hemorrhage and sloughing in the pancreatic tissue.

Keywords

mortality --- necrosis --- N-ZnO.

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