rearing conditions such as density, temperature, water quality, and frequency of feeding are among the most important factors affecting fish growth in aquaculture. therefore, this study was done to evaluate effects of interaction between temperature and feeding frequency on the growth of juveniles caspian roach weighting approximately 0.5 ± 0.05 g during 45 days. juvenile fish were reared at fo...

The present study has been conducted on Caspian Roach (Rutilus rutilus) so that the impact of different concentrations lead on blood hematological, biochemical, and immunological indicators could be investigated. The roach (Rutilus rutilus), used in this study, was 3.3±0.3 g heavy and 4±0.80 cm long in average. The fish were exposed to a low concentration of 10% LC50 and high concentration of 5...

Artificial fertilizers and mainly organophosphate herbicide are used by farmers to enhance their crop and control pests. In order to investigate the effects of Pretilachlore, fingerlings of caspian roach were exposed to a range of concentrations of toxin close to those of estuary for 96 h. Due to movement of these fingerlings in a gradient of salinity from freshwater to brackishwater some physi...

study of the osteological development in fishes is important from fisheries, biology and aquaculture points of views. it can be used as an early bio-indicator of non-optimal rearing conditions. the caspian roach, rutilus caspicus is a native cyprinid fish of the caspian sea that its artificial propagation has fulfilled in hatcheries to recruit its natural stocks. hence, this study was conducted...

Artificial fertilizers and mainly organophosphate herbicide are used by farmers to enhance their crop and control pests. In order to investigate the effects of Pretilachlore, fingerlings of caspian roach were exposed to a range of concentrations of toxin close to those of estuary for 96 h. Due to movement of these fingerlings in a gradient of salinity from freshwater to brackishwater some physi...

Study of the osteological development in fishes is important from fisheries, biology and aquaculture points of views. It can be used as an early bio-indicator of non-optimal rearing conditions. The Caspian roach, Rutilus caspicus is a native cyprinid fish of the Caspian Sea that its artificial propagation has fulfilled in hatcheries to recruit its natural stocks. Hence, this study was conducted...

Effects of dietary synbiotics on growth performance, survival, stress resistance, body composition and immune response in the Caspian roach (Rutilus rutilus) were evaluated. Fish with an initial average weight of 4.14±0.25 g were randomly distributed into tanks (50 fish per tank) and triplicate groups were fed a control diet or diets containing 1 g kg-1 and 2 g kg-1 synbiotics. After an 8-week ...

The current study has determined the toxicity effects of copper nanoparticles on the some vital organs such as gill, liver and kidney of Caspian Roach; Rutillus rutillus caspicus. For this purpose, 120 fishes were used as experimental samples and exposed to 0.1, 0.2 and 0.5 mg/L of Cu nanoparticles for 21 days, and 30 fishes assumed as the experiment control. The mean water temperature...