The experiment has been carried out in the Poultry Department from the Didactic Station of Banat`s University of Agricultural Sciences and Veterinary Medicine Timisoara, on laying hens - the Shaver 579 hybrid, being in the plateau part of the laying curve. We have distributed the hens in 4 groups (n=25), with fodder recipes including two protein levels (16.2% - group 1 and respectively 15.2% groups 2,3 and 4) and different amino acid contents (about 0.77% lysine and 0.38% methionine – groups 1 and 2; only 0.70% lysine and 0.34% methionine group 3, respectively 0.82% lysine and 0.42% methionine group 4). For the entire studied period, the highest egg production and the lower specific consumption, was registered for group 4 and the lowest production performances were assigned in group 3, which had been fed with a diet containing 15.2% crude protein and an amino-acids level lower with 10% than the NRC 1994 requirements. A strong positive correlation (r=0.80, p=0.015) for the egg production versus protein, lysine and methionine intake was obtained in lot 3.