Impact of high level of intensive feeding of two-year-old carp (Cyprinus carpio L.) - with feeds differing in fat and carbohydrate composition - on the levels of cortisol, glucose, triglycerides in the blood and on the body weight increments

agriculture intensive aliment pour animaux alimentation des poissons blood carbohydrate content carp carpa carpe chemical composition composition chimique contenido de carbohidratos cyprinus feeds fish feeding glucocorticoides glucocorticoids glucosa glucose growth rate intensive farming lipid content piensos sang sangre taux de croissance teneur en glucides teneur en lipides triglyceride triglycerides