
Fig. 1. Activities of glutamine synthetase (GSase), ornithine transcarbamoylase (OTCase), arginase and carbamoyl phosphate synthetases (CPSases) II and III in the yolk sac, embryonic body and liver fractions of rainbow trout just after hatching (38 days post-fertilization). Values are means + S.E.M. of five measurements (3050 individuals were pooled for each measurement). BLD, below levels of detection.