EFFECT OF FREE-RANGE PRODUCTION SYSTEM ON EGG QUALITY OF NATIVE GREENLEG PARTRIDGE HENS
 
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Pol. J. Food Nutr. Sci. 2007;57(Special issue 4B):339–341
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ABSTRACT
The aim of the study was to determine the effect of free-range production system on the quality of eggs from Greenleg Partridge hens. Free-range layers laid eggs with darker shells. Eggshells from free-range hens were characterized by greater weight and thickness and lower strength. Eggs from free-range hens had lower albumen height and Haugh units, greater yolk weight and more intense yolk colour compared to hens having no access to free range. The crude protein content of eggs from free-range hens was lower than in eggs from confined hens, while vitamin A and E content was greater. The housing system had no significant effect on the fat and cholesterol content of egg yolk.
ISSN:1230-0322