Table 3. Feed formulae (ingredient composition) and proximate composition of commonly used formulated made feed for different life stages of rainbow trout in intensive farming system.
Ingredient/proximate composition (% dry matter)	Life stages/size class
	Early fry	Fry	Fingerling	Grower	Broodstock
Ingredient composition (%)
Fish meal	68	68	46	30	34
Corn gluten meal	0	0	2	4	4
Poultry byproduct meal	2	2	5	6	8
Feather meal	0	0	4	6	5
Soybean meal	0	0	5	12	10
Blood meal, avian	1	1	2	4	4
Ground wheat	17	17	20	22	20
Soybean oil	0	0	0	5	0
Fish oil	10	10	12	9	10
Vitamin premix*	1.5	1.5	1.5	1.5	1.5
Mineral premix**	0.5	0.5	0.5	0.5	0.5
Proximate composition (%)
Crude protein	48	48	45	40	42
Crude lipid	17	17	20	21	18
Ash	9	9	12	12	12
Crude fiber	<3	<3	<3	<5	<5
NFE	13	13	13	12	12
Gross energy (kJ/g feed)	17	17	20	21	20
Cost (US$/kg)	1	1	0.9	0.85	0.85
*Refer to Table 6 for details of commonly used vitamin premix.
**Refer to Table 7 for details of commonly used mineral premix.