The length of the photoperiod has been implicated as affecting growth of sunshine bass. This study was done to determine if photoperiod length might affect insulin-like growth factor-I (IGF-I), which is a major hormonal regulator of growth in fish. Growth, feed conversion, peritoneal fat content, and plasma concentrations of IGF-I of sunshine bass were compared on fish held on a short (8 h) or ...

A field survey through questionnaire was conducted in rice-prawn (Macrobrachium rosenbergii)-fish culture ghers six villages of Khulna, Satkhira and Bagerhat districts south-west Bangladesh during March to December, 2008 assess present practices. About 10-25% the total area land converted for building canals dikes remaining were used rice cultivation. Boro with prawn fish appeared have positive...

Flavobacterium columnare is the causative agent of columnaris disease in freshwater fish, implicated in skin and gill disease, often causing high mortality. The aim of this study was the isolation and characterization of Flavobacterium columnare in tropical fish in Brazil. Piracanjuba (Brycon orbignyanus), pacu (Piaractus mesopotamicus), tambaqui (Colossoma macropomum) and cascudo (Hypostomus p...