Background and Objective: The use of Thonningia sanguinea (THOS) in domestic animal feed not only enhances the available natural resources and contributes to food self-satisfaction, but also makes local poultry farming profitable. Thus dietary supplementation of extract of Thonningia sanguinea on the morphometric parameters of local chicken Gallus gallus domesticus raised in confinement was the subject of this study. Materials and Methods: Four batches of local breed chickens (60 per batch) and four feeds were set up, in particular a control feed (THOS 0%) and three supplemented feeds (THOS 5%, THOS 10% and THOS 15%). The data on the measurement of the subjects was collected from week 12, then weeks 16, 20, 24 and 30. Results: The measurements of the legs show that the chickens fed with THOS 5% and those fed with THOS 10% had skeletal and muscle development faster than chickens fed the control diet and those on THOS 15% between 12 and 16 weeks of age. Beyond 20 weeks of age, chickens fed THOS 5% show skeletal development and muscles greater than chickens fed the other supplemented feeds. Conclusion: This study showed that supplementation with Thonningia sanguinea powder at 5% in the feed allows local chicken growth, both muscular and skeletal and can be recommended in poultry farming.