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Articles by M. Tatina
Total Records ( 2 ) for M. Tatina
  M.Y. Garakouei , Z. Pajand , M. Tatina and H. Khara
  Median lethal concentration (LC50) of suspended sediments in the Sepidrud River on two sturgeon species Acipenser persicus and Acipenser stellatus were determined to provide reliable criteria and guidelines for the protection of aquatic resources. Static bioassays were performed for 24 and 96 h periods on A. persicus and A. stellatus one control was used for A. persicus. Three replicates were used for each trial. Ten fish were stocked in each aquarium (35x30x35 cm2) containing 30 L of water. pH, dissolved oxygen concentration and water temperature was measured and recorded throughout the experimental period. The LC50 for 24 and 96 h for median lethal concentration were determined following Probit analysis. The LC50 for 24 and 96 h for suspended sediments was 46294 and 8539 mg L-1 in A. stellatus fingerlings, respectively. However, A. persicus fingerlings showed higher tolerance and median lethal concentration for suspended sediments but this species LC50 was 15367 mg L-1 for 96 h and 60802 mg L-1 for 24 h.
  M. Tatina , M. Bahmani , M. Soltani , B. Abtahi and M. Gharibkhani
  This study was conducted in order to characterize the different levels of dietary vitamin C and vitamin E on some of hematological and biochemical parameters of sterlet. For this purpose 270 sterlet (Acipenser ruthenus) were divided into 18 groups. Three levels of vitamin E (0, 100 and 400 mg kg-1 diet) and vitamin C (0, 100 and 400 mg kg-1 diet) and their combination were used to prepare nine experimental diets. Each of nine experimental diets was fed to fish in 2 tanks (2 replicates). The fish were fed 3% of their wet b.wt. per day for a 100 days period. Blood samples were obtained from three fish of each tank at the end of experiment. The results reveal that Fish fed diets containing 100 mg kg-1 vitamin E and 400 mg kg-1 vitamin C (diet 7) had the highest WBC (p>0.05). Also, significantly higher RBC was observed in diets 3, 4, 5, 6 and 9 than those of the other diets in which different levels of each vitamin without any regulation exists. The hematocrit percentage did not differ significantly in fish fed the different diets (p<0.05). Also, there was no significant difference in the mean amount of total protein, cortisol, glucose and triglyceride between the fish fed with the different diets designed for this experiment (p>0.05). On the other hand, fishes fed diets without vitamin C but different levels of vitamin E (diets 3 and 6) had significantly higher amounts of cholesterol compared with fish fed with other diets.
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