The response of pullet chicks to varying levels of dietary fibre and supplementary enzyme was investigated for 8 weeks using 120 three weeks old Harco black pullet chicks. The chicks were randomly divided into 8 groups of 15 birds each and assigned to 8 energetic (11.78-11.96 MJ/Kg ME) and nitrogenous (20% crude protein) diets in a 4 x 2 factorial arrangement involving four fibre levels (5.0, 6.0, 7.0 and 8.0%) and two enzyme levels (0 and 0.25%). Each treatment was replicated 3 times with 5 birds per replicate. Results showed that while body weight gain of chicks that were fed diets without supplementary enzyme decreased significantly (P<0.01) as the dietary fibre level increased beyond 6% level, average daily feed intake increased significantly (P<0.01) at the 7 and 8% dietary fibre levels. Chicks fed 6% crude fibre diet with enzyme supplementation had significantly (P<0.01) higher average daily weight gain, final body weight and protein efficiency ratio and lower (P<0.01) cost of feed per kg weight gain than those fed the control diet. It was concluded that 6% crude fibre can be included in pullet chicks’ diet without supplementary enzyme and 8% crude fibre with supplementary enzyme for normal growth of chicks.