Performance evaluation of commercial feeds on feeding and growth of the prawn, macrobrachium rosenbergii at prawn farm, Thanjavur.

Feeding and growth experiments were conducted with reference to three commercial feeds namely, C.P.Scampi feed, Aqua Prime+ feed, and Higashimaru Aqua Feed. The experiments provided evidences to show that C.P.Scampi feed is better than other two commercial feeds under investigation. A body weight of 746 mg/day was gained in those juveniles fed with C.P.Scampi feed, whereas Higashimaru Aqua Feed promoted growth at the rate of 540 mg/day and Aqua Prime + Feed only 296 mg/day. A similar trend was recorded with reference to increase in length (0.0166 mm / day, 0.0141 mm / day, 0.0114 mm / day, and in width 0.13 mm/day, 0.086 mm/day and 0/.064 mm/day).