title: Effect of gamma radiation on the growth, survival, hematology and histological parameters of rainbow trout (Oncorhynchus mykiss) larvae.
abstract: Effects of low (1, 2.5 and 5Gy) and high doses (10, 20 and 40Gy) of gamma radiation were examined on the growth, survival, blood parameters and morphological changes of the intestines of rainbow trout (Oncorhynchus mykiss) larvae (103±20mg) after 12 weeks of exposure. Negative effects of gamma radiation on growth and survival were observed as radiation level and time increased. Changes were well documented at 10 and 20Gy. All the fish were dead at the dose of 40Gy. In all the treatments, levels of red blood cells (RBC), hematocrit (HCT) and hemoglobin (HB) were significantly (P<0.05) declined as the irradiation levels increased, whereas the amount of mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) did not change. No significant differences (P>0.05) were found in the levels of white blood cells (WBC), lymphocytes and monocytes. Destruction of the intestinal epithelium cells was indicated as the irradiation levels increased to 1Gy and above. The highest levels of growth, survival, specific growth rate (SGR), condition factor (CF) and protein efficiency rate (PER) were obtained in the control treatment. The results showed that gamma rays can be a potential means for damaging rainbow trout cells.
authors.affiliation: Fisheries Department, Faculty of Agriculture and Natural Resources, Persian Gulf University, Borazjan, Bushehr, Iran. Electronic address: oujifard.amin@gmail.com.
authors.forename: Amin
authors.initials: A
authors.lastname: Oujifard
authors.affiliation: Department of Veterinary, Agricultural Medical and Industrial Research School, Nuclear Science and Technology Research Institute, AEOI, Karaj, Iran.
authors.forename: Roghayeh
authors.initials: R
authors.lastname: Amiri
authors.affiliation: Fisheries Department, Faculty of Natural Resources and Marine Sciences, TarbiatModares University, Noor, Mazandaran, Iran.
authors.forename: Gholamreza
authors.initials: G
authors.lastname: Shahhosseini
authors.affiliation: Fisheries Department, Faculty of Agriculture and Natural Resources, Persian Gulf University, Borazjan, Bushehr, Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Davoodi
authors.affiliation: Fisheries Department, Faculty of Natural Resources and Marine Sciences, TarbiatModares University, Noor, Mazandaran, Iran.
authors.forename: Jamshid Amiri
authors.initials: JA
authors.lastname: Moghaddam
mesh_terms: D000818:Animals; D004912:Erythrocytes / Q000528:radiation effects; D005720:Gamma Rays; D006400:Hematocrit; D006405:Hematology; D006454:Hemoglobins / Q000032:analysis; D007422:Intestines / Q000166:cytology / Q000528:radiation effects*; D007958:Leukocyte Count; D007962:Leukocytes / Q000528:radiation effects; D017686:Oncorhynchus mykiss / Q000502:physiology*; D016019:Survival Analysis; D014875:Water Pollutants, Radioactive / Q000633:toxicity*
chemical_list: D006454:Hemoglobins; D014875:Water Pollutants, Radioactive
keywords: Gamma radiation; Growth; Mortality; Oncorhynchus mykiss