lead is one of the heavy metal that is very toxic for environment and organisms. lead can inhibits many physiological processes and it is so dangerous for body tissues. in this study, four groups of fish (carassius auratus) 35 in each, were used for experiment. group 1 was as control, in group 2 fishes were exposed to lead acetate at concentration of 8. 5 mg/l, fishes in group 3 and 4 were also...

The aim of this work was to study the effects of sub-lethal exposure of lead acetate on the histopathology of the gills, liver, kidney and muscle and its accumulation in these organs of Clarias gariepinus. Results showed that lead accumulation in the tissues of C. gariepinus was dependent on the exposure period and lead concentration. Gills and liver were the predominant storage tissue and the ...

The aim of this study was evaluation an organic germicide (Aquagerm) histological affects on Rainbow trout (Oncorhynchus mykiss) vital tissues. This new disinfectant is an aquatic antiseptic and mixed-oxidant disinfectant which is produced for the first time in Iran. This new product mechanism is based on oxidant properties of pro-sulphate which attack crucial structures of pathogens. In this s...

A study on the histopathology of some diseased fishes was carried out during the period from July 2005 to June 2006 in the Institute of Biological Sciences, University of Rajshahi, Rajshahi. Symptoms of diseases of different fish species showed variation among the species and its distribution. The parasites were first found to settled on the body surface and tip of the gills of fishes and attac...

Red ginger is a natural ingredient that contains several antibacterial compounds such as essential oils, flavonoids, terpenoids, phenols, and zingiberene. This research was conducted from June to August 2021. The purpose of this study analyze the structure gill liver tissue jambal siam fish obtain best dose adding fermented red feed before after being challenged with Aeromonas hydrophila bacter...

the ontogeny of the gill structure in starlet ( acipenser ruthenus ) was studied histologically from hatching up to 50 days post hatching (dph). based on the obtained results, the first developmental phase of the biological systems in this species was started from hatching with an intense organogenesis and the second phase from 9 dph with the beginning of exogenous feeding. the gill anlage was ...

A public trout hatchery in Colorado recorded repeat episodes of morbidity and mortality early life stages Rainbow Trout (Oncorhynchus mykiss) stocks. The water source for the affected tanks is a groundwater well with pH 6.3 ferrous iron concentration 120 µg/L. Iron oxidizing bacteria (FeOB) were suspected as underlying cause due to insoluble red particulate matter (iron oxide precipitate) water...