Effect of Different Dietary Vitamin–Mineral Premixes, Housing Systems and Duration of Storage on Physical Characteristics and Proximate Compositions of Eggs at the Late Laying Stage

Authors : Olugbenga ADENİRAN OGUNWOLE, İretioluwa ADENİKE OLUDOYİ, Akinola YİNKA PAUL OJELADE

Pages : 1-7

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Publication Date : 2018-12-25

Article Type : Research Paper

Abstract :Effect of the different dietary proprietary vitamin–mineral premixes insert ignore into journalissuearticles values(PVMP); and housing systems insert ignore into journalissuearticles values(HS); on physical characteristics and proximate compositions of egg in the duration of storage insert ignore into journalissuearticles values(DOS); at the late laying phase were investigated in this study. Bovan Nera Black pullets insert ignore into journalissuearticles values(n=240); at week 71 of life were equally allotted to battery cage insert ignore into journalissuearticles values(BC); and deep litter insert ignore into journalissuearticles values(DL); HS. Pullets were further allotted in each HS to five dietary treatments. Each treatment was in triplicate of eight birds. The isocaloric and isonitrogenous diet formulated was supplemented with one of the five PVMP. Eggs insert ignore into journalissuearticles values(n=75); were sampled from each HS and stored at ambient conditions insert ignore into journalissuearticles values(temperature: 27.1-32.8°C and relative humidity: 41-76%);. Egg indices were assessed at days 0, 7, 14, 21 and 28. The trial was a `2 × 5 × 5` factorial arrangement in a completely randomized design. Effect of HS on weight, length, width, Haugh unit, yolk height, shape index and weight loss of eggs was not significant insert ignore into journalissuearticles values(p>0.05);. Yolk index of eggs from hens fed diet containing PVMP 1 group insert ignore into journalissuearticles values(20.41±2.73); and 4 group insert ignore into journalissuearticles values(20.53±2.42); differed significantly insert ignore into journalissuearticles values(p<0.05); from those on supplemental PVMP 2 group insert ignore into journalissuearticles values(18.49 ± 2.43);, 3 group insert ignore into journalissuearticles values(19.66 ± 2.64); and 5 group insert ignore into journalissuearticles values(20.02 ± 2.64);. Eggs weight reduced with increased DOS. Ether extract and ash of eggs from hens in DL were significantly higher insert ignore into journalissuearticles values(p<0.05); compared to those from BC while crude protein in egg from BC was significantly higher insert ignore into journalissuearticles values(p<0.05); than those from DL. Interactions of BC, PVMP and DOS on egg weight, shell weight, shell thickness and weight loss differed, significantly insert ignore into journalissuearticles values(p˂0.05);. Relationships of yolk index and moisture content relative to DOS were negative insert ignore into journalissuearticles values(R² = 0.908 and R² = 0.631, respectively); and highly significant insert ignore into journalissuearticles values(p<0.01);. Egg qualities were affected by the different HS, dietary PVMP used in layer diets as well as the eggs DOS. 
Keywords : Vitamin mineral premixes, Egg quality characteristics, Days of storage