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Ahemeral light cycles and egg quality*

Published online by Cambridge University Press:  18 September 2007

M.M. Shanawany
M.M. Shanawany
Affiliation:
Department of Animal Production, King Saud University, PO Box 1482, Burydah, Qassim, Saudi Arabia
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Abstract

The literature concerning the influence of ahemeral light cycles on the quality of eggs is reviewed. Results pooled from published reports were used to arrive at a quantitative relationship between the length of light cycle (ranging from 23 h to 30 h) and the parameters of egg quality. Eggshell quality (whether measured as mg shell per unit surface area, as shell thickness or as shell weight per se) was found to depend on a curvilinear function of cycle length. Albumen height was negatively correlated with cycle length, whereas yolk and albumen weights were found to have a curvilinear relationship with cycle length.

Keywords

Ahemeralalbumenegg qualityphotoperiodshellyolk
Type
Reviews
Information
World's Poultry Science Journal , Volume 46 , Issue 2 , July 1990 , pp. 101 - 108
Copyright
Copyright © Cambridge University Press 1990

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