. The
EAA requirements were expressed as a proportion of dietary crude protein
(CP) (Cowey and Cho, 1993; Mambrini and Guillaume, 1999). In the
present study, the highest WG and SGR were observed in crab fed the
diet containing 2.41% lysine level (4.87% of the dietary protein); two
slope broken-line regression analysis between SGR and dietary lysine
levels indicated that the optimal dietary lysine requirement of juvenile
swimming crab was 2.41% of the dry matter (4.87% of dietary protein).
This value is similar to those reported in Pacific white shrimp (4.93 of dietary
protein, Xie et al., 2012).