This study aims in part to valorize the cladodes of Opuntia ficus-indica (OFI), commonly known as prickly pear, widely spread in the Algerian rural landscape, as a feed additive for broiler chickens. The objective of this study was to measure the effects of incorporating OFI powder into the diet on the growth performance of broiler chickens. The experiment was conducted at the animal house of Hassiba Ben Bouali University of Chef, on sixty-four (64) day-old, unsexed Cobb 500 chicks. The chicks were divided into four groups (n=16) according to the diet. The animals received daily 4 rations T1, T2, T3 and T4 containing respectively 0%, 1%, 2% and 3% of the prickly pear pad powder. Analyses revealed a rich nutritional composition and good antioxidant activity of the powder. The incorporation of OFI powder improved the feed conversion ratio (FCR) of the animals (p<0.0001), with the lowest FCR recorded in batch 2, while the control batch had the highest values. A non-significant improvement (p=0.353) was observed in growth performance. The 2% batch showed the highest slaughter weight (2437g), while the chickens in the control batch appeared the lightest (2320, 78g), compared to the experimental batches. An interesting result is the increase in featherweight in the batch receiving 3% powder.