Stress effects on AVT and CRF systems in two strains of rainbow trout (Oncorhynchus mykiss) divergent in stress responsiveness

►HR and LR trout differ in plasma cortisol and locomotory activity during confinement. ►Forebrain CRF is higher in HR than LR trout after 180 min of confinement. ►Forebrain CRF-R2 is lower in HR than LR trout after 30 min of confinement.