Ameliorative Effects of Different Dietary Levels of Fish Protein Hydrolysate (FPH) on Growth and Reproductive Performance, Feed Stability, Tissues Biochemical Composition, Haematobiochemical Profile, Liver Histology, and Economic Analysis of Pabda (Ompok pabda) Broodstock

Table 1

Experimental feed formulation and proximate composition (dry weight basis).

Ingredients (g/100 g)	Diets (FPH (%))
	D1	D2	D3	D4
Danish fish meal	13.5	8.5	6.5	4.5
FPH^1	0.0	5.0	7.0	9.0
DDGS^2	6.5	6.5	6.5	6.5
Rice bran	18.0	18.0	18.0	18.0
Wheat	25.0	25.0	25.0	25.0
Soybean meal	25.0	25.0	25.0	25.0
Soybean oil	3.0	3.0	3.0	3.0
Palm oil	3.0	3.0	3.0	3.0
Vitamin and mineral premix^3	3.0	3.0	3.0	3.0
CMC^4	3.0	3.0	3.0	3.0
Total	100.00	100.00	100.00	100.00
Farm raw materials cost (USD/MT)	611.20	620.68	624.47	628.27
Proximate composition
Crude protein	30.05	30.40	30.65	30.85
Crude lipid	9.29	9.21	9.09	9.01
Crude ash	9.32	9.35	9.38	9.30
Moisture	11.20	11.05	11.00	11.01
NFE^5	40.14	39.99	39.88	39.83

¹Fish protein hydrolysate (FPH); ²distillery dry grain soluble (DDGS); ³vitamin and mineral premix (g/kg): vitamin A, C, D, E, K, B₁, B₂, B₆, B₁₂, KCl, 90; KI, 0.04; CaHPO₄·2H₂O, 500; NaCl, 40; CuSO₄·5H₂O, 3; ZnSO₄·7H₂O, 4; CoO₄, 121 0.02; FeSO₄·7H₂0, 20; MnSO₄·H₂O, 3: CaCO₃, 215; Mg₂OH, 124: Na₂SeO₃, 0.03; NaF, 1; ⁴carboxymethyl cellulose (CMC); and ⁵nitrogen free extract (NFE).