O. A. Ogunwole, A. Samireddypalle, E. I. Awoyemi, A. O. Mosuro


Effect of dietary cassava peel meal on internal and external quality of chicken egg during storage was evaluated. Isa Brown layers (n=2400), aged 36 weeks were randomly allotted to two dietary treatments each having 1200 birds each. Control group was fed standard corn-soya diets while treatment group which contained 5% cassava peel mash was fed with water ad libitum. At week 6 of feeding, eggs (n=150) were randomly collected from each treatment, stored at ambient conditions and assessed for internal and external quality characteristics at days 0, 7, 14, 21 and 28 of egg storage The experiment was a 2×5 factorial arrangement in a completely randomised design. Effect of dietary cassava peel was not significant (P>0.05) on all egg external quality indices. There was decreased egg weight (66.90±4.54 to 56.87±5.56), shell thickness (0.58±0.09 to 0.34±0.03), yolk height (17.63±1.50 to 6.68±1.05), albumen height (6.99±1.95 to 3.15±0.35) Haugh unit (70.03±10.48 to 55.73±7.44), yolk index (0.44±0.05 to 0.12±0.03) and yolk diameter (40.19±1.55 to 54.54±2.55) in days of storage (DOS). Interaction of DOS and diets significantly influenced (P<0.05) egg weight, length, shell thickness, yolk height, yolk index and Haugh unit. Most eggs external attributes were not affected by dietary cassava peel mash while most internal qualities reductions during storage were due to dietary CPM.


Egg quality indices, Egg weight, Haugh unit, Isa brown, Yolk index

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