<i>Borassus Aethiopum</i> Ripe Fruits’ Dried Pulp Powder Optimum Incorporation Rate in White Corn-Based Diets for Egg Yolk Colouration

The study assessed the optimum incorporation rate of Borassus aethiopum (Ba) ripe fruits’ dried pulp in laying hens’ feed. So, 72 Isa Brown hens 37-week-old were allotted into 9 groups 8 each. Then, 3 control diets including 60% yellow corn (60%YC), 55.2% (55.2%YC) and white (60%WC) formulated. Additionally, 6 test made by substituting 5%; 7.5%; 10%; 12.5% 15% 60%WC Ba pulp. randomly each group received one diet. experiment lasted 90 days, week-39 - week-50. Each day, eggs weighed, week similar weight used per diet for analyses. shell, yolk, albumen weighed. Moreover, yolk colours according to their components L*, a* b*. Finally, yolks total cholesterol contents determined. In results, rates fluctuated between 60.86±1.9% 76.19±2.69% WC+12.5%Ba, egg weights 57.71±0.30 61.63±0.22 g, within 4 (p<0.001). Although WC+12.5%Ba generated weightless 14.31±0.2 g compared 15.14±0.14 55.2%YC, its well coloured. Also, yellowness (b*) revealed 2 groups, good was from 60%YC, 55.2%YC 153.94±3.27 140.28±3.27, respectively (p=0.07). second group, got 90.17±5.17, colour visually good. looking at cholesterols contents, 30.90±1.47 mg/g, exhibited 34.71±3.19 mg/g (p=0.838). To conclude, best rate.