Table 5. Recommended dietary amino acid requirement for grass carp (% of dry diet)
Growth stage	Arginine	Histidine	Threonine	Valine	Isoleucine	Leucine	Phenylalanine	Tryptophan
Juveniles	1.68	0.67	1.01	1.36	1.18	1.98	1.09	0.24
On-growing & brood stock	1.4	0.56	0.84	1.13	0.98	1.85	0.91	0.2
Data source: Standard of nutrients in formula diet for grass carp (SC/T 1024-1997)