concentrations of heavy metals were determined in muscles of kutum (rutilus frisii kutum) collected from the central part of the southern end of the caspian sea during february 2011. except for silver (ag) and nickel (ni) which were below the limits of detection, the average levels of arsenic (as), cadmium (cd), copper (co), chromium (cr), copper (cu), iron (fe), manganese (mn), lead (pb), sele...

The toxic effect of chromium on the histology of gill and liver of Labeo rohita fingerlings was studied. The fingerlings were exposed for 10, 20 and 30 days in 10% sublethal concentration of 96 h LC50 of chromium (3.5 ppm). The gills exposed to sublethal concentration of chromium showed mild histological alterations during 10 days of exposure. However after 30 days, fusion of gill lamellae, hyp...

Glyphosate-based herbicides are widely used in agricultural fields and are commonly applied in fish ponds to control algae and plant growth. Nile tilapia, Oreochromis niloticus L., fingerlings exposed to the highest sublethal concentrations of glyphosate alone experienced an increase in cortisol levels that was similar to the value found in the stressed group. In contrast, fingerlings exposed t...

WillomitzerJ J.: Seasonal Dynamics of Parasitoses in Grasscarp (Utenopharyngodon idella) Fry and Fingerlings. Acta vet. Brno, 49, 1980: 269 277. Examination of grasscarp (Ctenopharyngodon idella) fry and fingerlings from the State Fishery, Pohorelice, for 3 years revealed grasscarp infestation with 12 parasite genera or species. The intensity and extensity of infestation was highest in the peri...

in this study, the effects of dietary intake of different levels of ginger (zingiberofficinale) extract on fingerlings of mesopotamichthys sharpeyi,were investigated. for this purpose, 192 fingerlings (mean weight: 11.67±0.32 g) were randomly distributed in twelve 300 litres fiberglass tanks (16 fish per tank) and fed with commercial diet containing 0% (control group),0.1%, 0. 5% and 1% of etha...