Effects of salinity on the growth and nutrient retention in silver perch,Bidyanus bidyanus (Mitchell 1838) (Teraponidae)

摘要

The silver perch, Bidyanus bidyanus, is a native Australian freshwater fish of the highest aquaculture potential. The species is known to tolerate a certain extent of salinity. Silver perch juveniles were fed a commercial diet (45% protein) and reared at salinities 0, 4, 8 and 12 in order to assess weight gain, specific growth rate (SGR), food conversion ratio (FCR) and nutrient retention at these four salinities. Fish reared at salinity 4 (P < 0.05) showed the best weight gain, SGR, FCR and a significantly better performance. Nitrogen and phosphorus retention were also significantly better in fish reared at salinity 4 (P < 0.05). [References: 21]