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 3

Physical properties of experimental diets, with and without FPH.

Parameters	Diets (FPH (%))
	D1 (0)	D2 (5)	D3 (7)	D4 (9)
Feed diameter (mm)	2.02 ± 0.01	2.03 ± 0.01	2.04 ± 0.02	2.04 ± 0.02
PDI (%)	99.76 ± 0.08^a	98.18 ± 0.32^b	99.62 ± 0.03^b	98.35 ± 0.41^b
Floatability (%)	100.00 ± 0.00	100.00 ± 0.00	100.00 ± 0.00	99.67 ± 0.58
Water stability (%)	78.79 ± 0.05^c	79.80 ± 0.10^a	78.93 ± 0.04^b	79.90 ± 0.05^a

Values are expressed as mean ± standard deviation. ER, expansion ratio; PDI, pellet durability index. Distinct superscript letters in each row indicate significant variation ().