Protoporphyrin IX in shell and cuticle of brown shelled eggs

Title
Protoporphyrin IX in shell and cuticle of brown shelled eggs
Publication Date
2013
Author(s)
Samiullah, Samiullah
Roberts, Julie R
Type of document
Conference Publication
Language
en
Entity Type
Publication
Publisher
University of Sydney
Place of publication
Sydney, Australia
UNE publication id
une:18916
Abstract
Eggs were collected from Hy-Line brown flocks aged 33, 50 and 67 wk. Thirty eggs from each flock were analyzed to determine the reliability of MST (MS Technologies, U.K.) cuticle blue stain as an indicator of the presence of cuticle and the effective removal of cuticle by use of an EDTA solution. Another 30 eggs, collected at the same time from each flock, were processed for the quantification of protoporphyrin IX (PP IX) from the eggshell with and without the presence of cuticle. The L*a* components of the colour space system were significantly different among the age groups. There was a high degree of correlation between the extent of MST cuticle blue staining and the amount of cuticle on the eggshell as recorded by scanning electron microscopy. PP IX pigment was quantified by spectrophotometric analysis of digested eggshell solutions.
Link
Citation
Proceedings of the Australian Poultry Science Symposium, v.24, p. 260-263
ISSN
1034-6260
1034-3466
Start page
260
End page
263

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