One hundred and ninety-two 58-week old laying quails (Coturnix coturnix japonica)
were randomly allotted to three groups with eight quails per and fed different levels of flax seed (T1=0%)(control):T2=15% T3=3% and T4 = 5% (Tabie 1) Measurements were carried out in six replicates The experimental period lasted 84 days (four 21-day cycles) The eggs collected at the 21 day of each cycle were submitted to chemical analysis The yolk were separated homogenized and frozen at -18 c until analysis, when they were unfrozen and analyzed in triplicate