M. A. Oguntoye, A. R. Akintunde, U. M. Mafindi, F. Adamu, B. Daniel


Eight weeks (56 days) feeding trial was carried out using a total of two hundred and seventy (270), day-old broiler chicks to assess the growth performance, carcass characteristics and cost benefit analysis of broiler chickens fed maize-cassava based diets supplemented with DL-methionine and sodium sulphate. Nine experimental diets were laid out in a 3 × 3 factorial arrangement with three dietary inclusion levels of DL-methionine (0, 125 and 250 mg/kg) and sodium sulphate (0, 125 and 250 mg/kg). The experiment lasted for 0-28 days (starter phase) and 28-56 days (finisher phase). The birds were divided into nine treatment groups of 30 birds each. Each group was replicated three times in a completely randomized design of 10 birds per replicate. Data were analyzed using analysis of variance while means were compared using Duncan’s New Multiple Range Test (DNMRT). The result of growth performance revealed that final weight, total weight gain and Average daily gain (ADG) showed significant (P<0.05) influence with dietary supplementation of DL-methionine and sodium sulphate at both starter and finisher phases. Birds fed diet supplemented with 250 mg/kg DL-methionine and 125 mg/kg sodium sulphate showed highest (P<0.05) values of 2045.01 g and 57.29 g for final weight and ADG at finisher phase. No significant effect of supplementation was observed on mortality. Highest percentage mortality of 4.44% observed in this study fall within the normal range. Birds fed diet containing 250 mg/Kg DL-methionine with 125 mg/kg sodium sulphate showed significantly higher revenue of ₦312.35/bird and benefit of ₦36.58/bird. Higher statistical values of 18.72%, 13.90%, 10.84% and 3.81% were recorded for breast, back, drumstick and gizzard respectively in the birds fed diet supplemented with 250 mg/kg DL-methionine + 125 mg/kg sodium sulphate interaction. It can be concluded that supplementation at level of 250 mg/kg DL-methionine with 125 mg/kg sodium sulphate reflected high significant values for growth performance and carcass yield without any deleterious effect on broiler chickens.


Maize-cassava, DL-methionine, sodium sulphate, broiler chickens

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