EFFECT OF FEEDING THREE DIFFERENT FORMULATED FEEDS HAVING DIFFERENT PROTEIN LEVELS ON THE GROWTH OF ANGEL FISH (PTEROPHYLLUM SCALARE) JUVENILES
32 / 19
Authors
-
N. P. Sahu
Fish Nutrition and Biochemistry Division,
Central Institute of Fisheries Education, Versova, Mumbai- 400061, India
-
Shivendra Kumar
Fish Nutrition and Biochemistry Division,
Central Institute of Fisheries Education, Versova, Mumbai- 400061, India
-
D. Choudhury
Fish Nutrition and Biochemistry Division,
Central Institute of Fisheries Education, Versova, Mumbai- 400061, India
-
K. Baruah
Fish Nutrition and Biochemistry Division,
Central Institute of Fisheries Education, Versova, Mumbai- 400061, India
-
M. Biswal
Fish Nutrition and Biochemistry Division,
Central Institute of Fisheries Education, Versova, Mumbai- 400061, India
-
Umesha. D
Fish Nutrition and Biochemistry Division,
Central Institute of Fisheries Education, Versova, Mumbai- 400061, India
Abstract
Experiment was conducted to study the effect of dietary protein level on
growth and nutrient utilization by angel fish (Pterophyllum scalare) juveniles.
Fifty-four juveniles (average wt. 2-2.5g) were equally divided in three
treatments with each of three replicates. Three formulated diets with graded
protein levels, T1 (35% CP), T2 ( 40% CP) and T 3
( 45% CP) were fed to
juveniles for 45 days. A trend of higher weight gain%, SGR, FER and PER
was found with the increased CP level in the feed. Feed intake was similar in
an the groups. T 3 group fed with 45% CP registered highest weight gain %
(43.26 ± 2.07), SGR (0.78 ± 0.04), FER (0.29 ± 0.01), which were significantly
higher (P< 0.05) than the T1 and T2 groups. Protein digestibility of T2 and T3
groups was significantly higher than the T 1 group. Survival was similar in all
the experimental groups. Diet with 45% CP with protein energy ratio of 112.62
mg protein/K cal is ideal for juvenile angel fish for indoor rearing.
Keywords: Angel fish, Feed, Protein, Growth, digestibility, tissue
composition
