Efficient utilization of poultry by-product meal-based diets when fed to giant freshwater prawn, Macrobrachium rosenbergii

摘要

Two feeding trials were conducted to investigate the utilization of poultry by-product meal (PBM) in the post-larvae and juveniles of giant freshwater prawn, Macrobrachium rosenbergii. In experiment 1, five diets were formulated using PBM to replace fish meal protein at 0-100% replacement level at 25% interval. The growth performance was highest in diet with 75% replacement level. Feed conversion ratio (FCR) ranged from 1.52 to 1.88 and survival was fairly high (79.37-83.73%). In experiment 2, sevendiets with higher replacement levels of fish meal protein with PBM protein (starting at 75% replacement level) were fed to triplicate groups of the juvenile prawn. The best growth performance was obtained in diet without fishmeal. Meanwhile, survival rate (83.33-89.56%) did not show any significant difference among the treatments. The result showed that high-quality PBM is a good candidate to replace fish meal protein in the diet and its utilization improved with the size of giant freshwaterprawn.