Evaluation of external and internal traits of eggs from three poultry species at different storage durations in tropical environment (original) (raw)

Nigerian Journal of Animal Science, 2017

Abstract

This study evaluated the external and internal traits of eggs from three indigenous poultry species (domestic chicken, duck and guinea fowl) at different storage durations. A total of 147 freshly laid eggs of domestic chicken, duck and guinea fowl were collected from reputable poultry farms. Seven fresh egg samples for each species were measured within 2 hours at day 0 of being laid. Each egg was weighed and broken, and the height of the albumen and egg yolk was measured. Forty-two eggs of each species were thereafter stored for 5, 10, 15, 20, 25 and 30 days at room condition (Average temp 26.6°C and Relative humidity 88%). Data obtained were arranged in a 3 × 7 factorial experimental layout in a completely randomized design. All external and internal parameters measured were significantly (p<0.05) influenced except egg width and egg shape index. Guinea fowl eggs had the highest Haugh unit compared to other species of birds investigated. The Haugh unit of duck egg was adversely a...

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