Growth Performance of Oreochromis Niloticus (Linnaeus,1758), Cyprinus Carpio (Linnaeus,1758) and Tor Pitutora (F.Hamilton,1822) in Recirculating Aquaculture System
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Department of Zoology
Abstract
This study presents the introduction of Recirculating Aquaculture System (RAS) in
Nepal and experimentation on comparison of growth performance of three different
species of fish commonly found in Nepal. With the limited study on RAS in Nepal, this
study aims in providing and uplifting agricultural technologies. The three studied
species are Nile Tilapia, Common Carp and Golden Mahseer. All three species were
grown in grow tanks T1, T2 and T3 respectively with three simultaneous replications.
Each tanks were 1.5m in diameter and 1.2m in height at the circumference and 1.5m at
the central. The tanks were made up of composite Fiber Reinforced Plastic (FRP) for
durability and longevity. In each tanks, 200 fingerlings were introduced. Maintaining
the similar optimum water parameters, the experiment was performed. Fishes were
reared for six months feeding 35% crude protein locally available feed. Common Carp
showed highest growth performance with mean weight gain of 1234.63±9.1g and
specific growth rate of 2.53. on the other hand, Golden Mahseer showed the lowest
growth performance of 45.29±0.7g and specific growth rate of 3.4. It depicts that
Common Carp is more suitable fish for RAS than Tilapia and Mahseer.