A study was carried out to test the responses of juvenile larger yellow croaker Larimichthys croceus to highCu intake. Experimental diets were formulated containing three levels of Cu: low Cu (3.67 mg/kg), middleCu (13.65 mg/kg) and high Cu (25.78 mg/kg), and each diet were fed to large yellow croaker in triplicatefor 10 weeks. Final body weight, weight gain and feed intake were the lowest in h…