مشخصات پژوهش

عنوان	Histological Effects of Cadmium on Hepatopancreas and Gill in Cyprinus carpio
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Cadmium, Common Carp, Gill, Hepatopancreas, Histological Effects
چکیده	Background: Histological studies in organs like hepatopancreas and gill of the freshwater fish, Cyprinus carpio, were made to assess tissue damage due to sub-lethal concentration of cadmium after a long exposure period. Methods: This study was conducted in University of Tehran, in 2013. The fish were divided into two groups in 1000 litre fiberglass tanks supplied with dechlorinated water [hardness 302.6 mg CaCo3/l, pH 7, O2 7.8 mg/L and temperature 15 ± 2 ºC] and continuous aeration. Group 1 was without any cadmium considered as control group. Group 2 was exposed to 30 ppb CdCl2 (Merck) containing 7.8 ppb cadmium. The tissue samples from: hepatopancreas, gill were collected 30 days post exposure and processed by histological procedures. Results: The main lesions in cadmium exposed groups were: (a) pancreatitis necrosis in endocrine part of pancreas (b) cholangitis and necrosis in liver parenchyma (c) hypertrophy, fusion and telangiectasia in secondary lamellae Conclusion: Cadmium chloride at low concentration can induce pathological alterations in hepatopancreas and gill of common carp. .
پژوهشگران	فرزاد غیاثی (نفر اول)، جواد اشرفی هلان (نفر سوم)، سیدسعید میرزرگر (نفر دوم)