EFFECT OF MIXED FEEDING SCHEDULE ON GROWTH AND NUTRIENT UTILISATION IN ROHU, LABEO ROHITA (HAM.) FINGERLINGS
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Authors
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J. K. SAMAL
Central Institute of Freshwater Aquaculture,
Kausalyaganga, Bhubaneswar- 751 002.
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S. N. MOHANTY
Central Institute of Freshwater Aquaculture,
Kausalyaganga, Bhubaneswar- 751 002.
Abstract
Studies on nutrient utilisation and growth of rohu (Labeo rohita)
fingerlings (3.13-4.09 g) raised on seven feeding schedules under
laboratory conditions (26.3-33.5°C) showed that two days regular feeding
on Diet B (high protein, 38.90%) resulted in maximum growth and
protein retention efficiency. While regular feeding on low protein diet
(Diet .A) resulted in poor nutrient utilisation and growth of fish, high
protein diet (Diet B) did not show any significant difference in growth
from the mixed 2A-3B schedules but exhibited comparatively low
protein retention efficiency. The other feeding schedules were 1A-2B,
1A-3B, 2A-2B AND 2A-4B, where the numerical value refers to the
number of days for continuous feeding of a particular diet. The diets
A and B served as the controls which contained 3.40 and 3.67 kcallg
gross energy respectively.
The 2A-3B feeding schedule was also found to be highly economic
as an expenditure of Rs.ll/- only was required for raising the body
weight by one kilo as against Rs.17/- with high protein diet (Diet B) as
calculated.
