Authors:
Akinola Yinka Paul Ojelade, Olugbenga Adeniran Ogunwole
Volume 31, Issue 3;
Pages: 342-350, 2025
ISSN: 2069-0053 (print), Agroprint
ISSN (online): 2068-9551
Effect of housing systems (HS) and different dietary vitamin–mineral premixes (VMP) on chicken egg proximate compositions at early-, mid- and late laying phases were investigated. Bovan Nera Black layers (n=240) aged 13 divided into five treatments in in two HS each replicated six times comprising eight hens per replicate in '2 × 5' factorial arrangement and completely randomized design. VMPs were supplemented at 0.25% in basal diet to obtained treatments VPMs 1–5. HS had effect (p<0.05) on nutrient deposition with BC eggs higher (p<0.05) in protein during early-laying phase, while DL eggs had higher (p<0.05) fat and mineral profiles at late-laying stages. Hence, VMPs 4 and 5 enhanced (p<0.05) protein and mineral deposition, while VMP3 higher (p<0.05) lipid during late-laying phase. There were non-linear relationships between protein and age, while VMPs had stronger correlations during mid- and late-laying phases.
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