TRUE METABOLISABLE ENERGY AND TRUE DIGESTIBLE PROTEIN VALUES OF BAKER’S YEAST FERMENTED CASSAVA PEEL MEAL USING BROILERS

Résumé

This study determined true metabolisable energy (TME), true metabolisable energy corrected for nitrogen (TMEn) and true digestible protein (TDP) of fermented cassava peel meal using broilers. Thirty two (32) six-week old Marshall broiler chickens were each divided into four groups of 8 birds which was assigned to samples of cassava peel meal (CPM) which was treated with 0.6% baker’s yeast and fermented for 72hours (T_{0.60%/72hours}) which resulted in 14.48% crude protein and that treated with 0.2% baker’s yeast, fermented for 72hours (T_{0.20%/72hours}) which yielded 3526.69kcal/kg gross energy as well as CPM treated with 0.0% baker’s yeast and fermented for 0hours (T_0.00%/0hours) which served as the control in a completely randomized design (CRD). Results from the study indicted a TME ranging from 2864.47 to 3155.91Kcal/kg for broilers with treatment T_(0.0%/0hrs) and T_{(0.20%/72hrs)} recording significantly (p<0.05) lower and higher TME, TMEn value for broilers in this study and ranged from 2637.89Kcal/kg for the control (T_0.0%/0hour) to 2920.07Kcal/kg while TDP values ranged from 62.77mg/g in treatment T_0.00%/0hour to 140.91mg/g in T_{0.60%/72hours}. The group with the highest crude protein value recorded the highest TDP value which also, indicated significantly (P<0.05) higher percentage digestibility of protein than the control (8.78% vs 9.73%).