Relative efficiencies of pelletized feeds compounded with different animal proteins and the effect of protein level on the growth of the prawn Penaeus indicus

摘要

Laboratory experiments with four pelletizedfeeds, compounded separately with the animal proteins from prawn waste meal, mantis shrimp protein, clam meat powder and flsh meal in combination with the plant protein from groundnut cake, were conducted to study the relative eflciency by feeding juvenile Penueus indicus. The animal and the vegetable proteins in each feed were approximatelyudadjusted in the ratio 1 : 1. Tapioca powder was used as the source of carbohydrate as well as the binding agent. The control experiment was carried out with the feed prepared solely from fresh clam meat. Feeds with mantis shrimp protein and clam meat powder gave high increase in live weight and good food conversion values followed by the feeds with fresh clam meat, prawn waste meal and fish meal.udFeeding experiments with pelletized feeds, consisting of mantis shrimp protein, groundnut cake and tapioca powder with crude protein content ranging from 20.5 % to 46.5 % were conducted on the juvenile P. Indieus. Progressive increase in the live weight gain was recorded with the Increase in the crude protein level upto 42.9 %and Mined thereaftkr, while the protein ef3ciency ratio wds the highest at 20.5 % crude protein level.