Protein Hydrolysate from Waste of Catfish Fillet Processing for Snakehead Fish Feed Formulation

Table 5

AWG, SGRFE, and PER snakehead fish-fed hydrolysate protein from catfish waste in concentrations of 0, 15, 30, and 45%.

Parameter	Protein hydrolysate dose
	0%	15%	30%	45%
AWG (g)	3.49 ± 0.18^ab	3.48 ± 0.16^ab	2.58 ± 0.34^a	3.77 ± 0.06^b
SGR (%/day)	1.62 ± 0.06^a	1.62 ± 0.06^a	1.60 ± 0.01^a	1.71 ± 0.02^a
FE (%)	37.42 ± 5.00^a	45.40 ± 2.39^ab	44.35 ± 2.96^ab	46.18 ± 1.67^b
PER (%)	1.13 ± 0.11^a	1.49 ± 0.07^b	1.02 ± 0.15^a	1.42 ± 0.03^b

Data were expressed as mean ± SD. Different superscript letters in the same line show significantly different results (). AWG (absolute weight growth), SGR (specific growth rate), FE (feed efficiency), and PER(protein efficiency ratio).