Abstract:
Aquaculture has been developed into a sustainable industry allied through the
culture of high-valued freshwater finfishes. Over 70% of aquaculture
production depends on suitable feeds and feed ingredients. Phospholipid (PL)
in fish feed has been identified as growth promoter in juveniles of fish.
Interaction between phospholipid and other nutrients are also crucial.
Therefore, the current research was initiated by supplementing phospholipid
as non-fishmeal based feed ingredients to make a suitable diet for Malaysian
Mahseer, Tor tambroides. Several feeding trials were conducted using
juveniles of T. tambroides. The primary investigation showed specific growth
rate (SGR) of 2.05% d
-1
in fish fed 4% liquid soybean lecithin supplemented
diet. However, another feeding trial confirmed a better SGR of 2.11% d
-1
in
mahseer juveniles fed diet supplemented with 4% granular soybean lecithin.
Hence, granular soybean lecithin as PL source was advocated. Subsequent
trials were associated with the PL supplementation and fishmeal (FM)
replacement studies for T. tambroides. Thus, soybean meal and fish bone
meal were suggested to replace dietary FM when supplemented with PL.
