Please use this identifier to cite or link to this item:
Scopus Web of Science® Altmetric
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSamiullah, S.-
dc.contributor.authorRoberts, J.-
dc.identifier.citationPoultry Science, 2013; 92(10):2783-2788-
dc.description.abstractProtoporphyrin has been identified as the main eggshell pigment in brown-shelled eggs. However, there has been some uncertainty concerning the distribution of the pigment within the shell (and cuticle) in brown-shelled eggs. Most previous studies have suggested that the bulk of the shell pigment is deposited in the cuticle of the shell. The present study measured the levels of protoporphyrin in intact eggshells and in shells from which the cuticle had been removed, using eggs from flocks at 3 different ages. This enabled the calculation of the relative amount of protoporphyrin in the calcareous eggshell and the cuticle layer of the eggshell. The majority of the protoporphyrin pigment was located in the calcareous part of the eggshell (80-87%) with a minority contained within the cuticle (13-20%). These findings suggest that studies focused on maintenance of shell color in brown-shelled eggs need to consider the stage of egg formation at which the reduction in pigment deposition is occurring.-
dc.description.statementofresponsibilityS. Samiullah and J. R. Roberts-
dc.publisherPoultry Science Association-
dc.rights© 2013 Poultry Science Association Inc.-
dc.subjectLaying hen; eggshell; eggshell pigment; shell color; protoporphyrin-
dc.titleThe location of protoporphyrin in the eggshell of brown-shelled eggs-
dc.typeJournal article-
dc.identifier.orcidSamiullah, S. [0000-0002-0292-2979]-
Appears in Collections:Animal and Veterinary Sciences publications
Aurora harvest 8

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.