Nitrogen and phosphorus utilisation in rainbow trout (Oncorhynchus mykiss) fed diets with or without fish mealJeong Dae Kim, Sadasivam J. Kaushik and Jeanine BrequeAquat. Living Resour., 11 4 (1998) 261-264DOI: https://doi.org/10.1016/S0990-7440(98)80009-0