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Nanostructural basis for the gloss of chicken eggshells

Li, Quanlin ; Wang, Kun ; Zheng, Jiangxia ; Sun, Congjiao ; Ge, Changrong ; Yang, Ning ; Xu, Guiyun

Poultry science, 2019-11, Vol.98 (11), p.5446-5451 [Periódico revisado por pares]

England: Poultry Science Association, Inc

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  • Título:
    Nanostructural basis for the gloss of chicken eggshells
  • Autor: Li, Quanlin ; Wang, Kun ; Zheng, Jiangxia ; Sun, Congjiao ; Ge, Changrong ; Yang, Ning ; Xu, Guiyun
  • Assuntos: Animals ; Chickens - physiology ; Color ; Egg Shell - chemistry ; Egg Shell - ultrastructure ; Microscopy, Atomic Force - veterinary ; Microscopy, Electron, Scanning - veterinary ; Mineral Oil - administration & dosage ; Pigmentation
  • É parte de: Poultry science, 2019-11, Vol.98 (11), p.5446-5451
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: ABSTRACT The nanostructure greatly contributes to eggshell formation, the mechanical properties of eggshells, and mineral dissolution during incubation. In this study, to investigate the effect of the nanostructure on the gloss of eggs, the gloss and eggshell quality (cuticle coverage, color, and thickness) of 105 eggs were measured. According to the order of the gloss, the surface roughness of 30 high-gloss and 30 low-gloss eggs was compared. The gloss had no significant correlation with the eggshell color and thickness (P > 0.05) and a significant relationship with the cuticle coverage (r = 0.19, P < 0.01). The surface roughness significantly differed between the high- and low-gloss eggs (P < 0.001), and the gloss was negatively correlated with the surface roughness (r(high-group) = −0.61, r(low-group) = −0.56, P < 0.01). The shell gloss of 30 oiled eggs with mineral oil and 30 normal eggs from commercial brown-egg layers was also compared. The oil coating increased the eggshell gloss, but the roughness was unchanged. This is the first report to establish the contribution of nanostructure for the gloss of chicken eggshell. The surface roughness can be used as an indicator of the gloss, which could be helpful for selective breeding to improve the eggshell brightness. Our research also provides the foundation for further investigation of the effect of non-pigmentary contributors on the chicken eggshell appearance.
  • Editor: England: Poultry Science Association, Inc
  • Idioma: Inglês
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