PERFORMANCES OF CATLA (Catla catla) FINGERLING REARED ON LOCALLY AVAILABLE FEED INGREDIENTS

Abstract

A comprehensive trial was undertaken to assess the effect of various types of feed ingredients on the biomass conversion rate in a 12- week feeding trials to evaluate the use of agro - based products, as locally available feed ingredient materials for fish catla (Catla catla) fingerling (av. wt. 1.52+0.11 to 1.55+0.07 g) growth performances. In experiment, three (26.14 to 26.56 % crude protein) practical diets were formulated. The experimental diets were fed to five replicate groups of fingerlings at 8% of body weight and results were compared. After 12-week study the final weight gain recorded as 12.45+0.03 g, 15.23+0.15 g and 18.12+0.17 g in F1 to F3 fishes respectively. The percentage weight gain recorded as 719.1%, 895.4% and 1069.0% respectively from initial weight. The results suggest that the growth is better in feed F3 containing higher soybean meal, Potato starch and lower content of Mustard oil cake. The feed conversion ratio (FCR) ranged between 2.34±0.11 to 2.98±0.09. The survival was recorded in F1 to F3 as 60±4.1%, 70±2.3% and 80+3.3% respectively. Lipid and protein contents in carcass composition differ significantly (P<0.05) among the three feeding trials. The study suggests that the soybean diet which is more effective, than the mustard oil cake, in the deposition of nutrients in terms of flesh (at early growing stage of life), and led to be significantly higher (P<0.05) growth than the other two diets in, Catla catla