Androgens are necessary for normal male phenotype expression, including the initiation and maintenance of spermatogenesis. Many physiological actions of androgens are mediated by the androgen receptor (AR), a member of the nuclear receptor super family. In the present study focused to identify the expression of AR in the gonads and brain of Cirrhinus mrigala. The gene specific primers were used...

Labeo rohita, Gibelion catla, Cirrhinus mrigala, Ctenopharyngodon idella and Hypophthalmichthys molitrix were grown together for 365 days in triplicate ponds. Six iso-caloric feeds having varying protein levels i.e. 22, 24, 26, 28, 30 and 32% were prepared and supplemented to fish at 2% fish weight daily. Significantly, higher final average weight (793 ± 197 g) and total length gain (398 ± 40 m...

The efficacy of crude pineapple juice obtained from Ananus comosus in digesting fish for the harvesting of trematode metacercariae was investigated. No significant difference was found between the total number of metacercariae detected from fish (Cirrhina jullieni) digested by acid pepsin and those digested by freshly prepared pineapple juice that was kept for 15 days at a temperature of either...

Cyprinodontiformes fishes (guppies) are widely distributed in Neotropical regions and use deteriorated microhabitats in rivers where few species can occur. This study was carried out in a stretch of the Paraíba do Sul River in bracketing a large urban-industrial complex. The aim was to assess eventual effects that the industrial complex could have on distribution of two closely related fish spe...

In the present investigation histopathological lesions in the selected tissues such as gills, kidney and eye of the fingerlings of Cirrhinus mrigala exposed to a sublethal concentration of mercury, i.e. 240 μg/l from static bioassay have been studied. The primary gill lamellae showed degeneration in the middle and distal region. In distal region, spherical structure showing complete degeneratio...

-------------------------------------------------------ABSTRACT--------------------------------------------------The present study was to evaluate nitrite toxicity in fish gills during long-term exposure of sublethal concentration of sodium nitrite (NaNo2). The effect of nitrite on histopathological parmeters were evaluated exposing Indian freshwater fish, Cirrhinus mrigala to a sublethal conce...

A 90 day feeding trial was conducted to assess the efficacy of Medicago sativa plant leaf powder as a supplementary feed ingredient for fish Cirrhinus mrigala. Six experimental diets were formulated by replacing fishmeal from standard diet at proportion 30%, 40% and 50% alfalfa powder. Three them kept raw remaining three subjected hydrothermal processing. The weight gain, specific growth rate, ...