In recent study a 90 days feeding trial was conducted to evaluate the effect of dietary protein
ratios on growth and morphometry in Pangasianodon hypophthalmus. Three commercially
available diets with crude protein ratios 20% (T1), 25% (T2) and 30% (T3), by Supreme Aqua
Feeds, were fed to P. hypophthalmus fry by initial weight and length 0.30g and 2.90cm
respectively. Average final weight (26.84g), average final length (14.51cm), survival (98%) and
Ccondition factor (0.88) were high for 30% CP (crude protein) Diet. FCR (feed conversion ratio)
improved with increase in dietary protein moving from T1 to T3. Various morphometric
parameters i.e. total length (TL), fork length (FL) standard length (SL), head length (HL), body
depth (BD), body girth (BG), dorsal fin base (DFB), dorsal fin length (DFL), 2nddorsal fin base
(2ndDFB), 2nddorsal fin length (2ndDFL), pelvic fin length (PvFL), pectoral fin length (PtFL),
anal fin length (AFL), anal fin base(AFB), caudal fin length(CFL), head width (HW), eye
diameter (ED), Inter-orbital distance (Int.OD), pre-orbital length (POL) of P. hypophthalmus
were studied to know their correlation to size (TL). The favorable growth environment supported
the survival of fish. However all diets improved the growth of fish, the 30% CP which resulted in
best growth performance was probably adequate to meet the dietary protein needs of P.
hypophthalmus fry in recent study.
Keywords: Pangasianodon hypophthalmus, crude protein ratios, commercial feed, growth
performance, morphometrics
Publication date: 01/11/2020
https://ijbpas.com/pdf/2020/November/MS_IJBPAS_2020_5274.pdf
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https://doi.org/10.31032/IJBPAS/2020/9.11.5274
