In a 3 x 5 factorial experiment, 1 d old 372 egg type chicks were fed 15 experimental diets for 8 wks with each level of protein (22.20 and 18%) and 3 1evels of lysine (L) and methionine (M) +Cystine(C), 1.05% Land 0.85% M + C(T1),0.95% Land 0.75% M + C (T2) and 0.85% L with 0.65% M + C (T3) aad performance compared with h aegative (all vegetable erotein; T0) and a positive (vegetable protein diet supplimented with 8% fish meal; T) control Best performance in respect of body weight gain (P<0.01) and feed conversion ratio (P<0.01) was observed with pullets fed diets supplemented with amino acids at 22 or 20% protein levels. Maximum N retention was observed at tow (8 %) protein levels with high rate of amino acid supplementation, while minimum retention occured on low rate amino acid supplemented group of high protein levels (P < 0.01). Per cent GE metabolized was maximum on Sow rate amino acid supplemented group of high protein levels and minimum on fish meal supplemented group (control) of low protein levels (P < 0.05).
