Four isonitrogenous and isoenergetic diets were formulated (MixitWin V. 6.14, Agriculture Software Consultants Inc., USA) to contain 45% crude protein (dry weight) and 10% crude lipid (Table 1). A control diet containing FM as the main protein source (FM100) was made in addition to three plant based-diets (blend of SBM and soy protein concentrate SPC),