Studies on egg quality. I.—effects of certain poultry housing systems, age of bird and season

✍ Scribed by K. Bryce Jones; T. W. Houston; J. M. Harries

• Publisher: John Wiley and Sons
• Year: 1961
• Tongue: English
• Weight: 840 KB
• Volume: 12
• Category: Article
• ISSN: 0022-5142
• DOI: 10.1002/jsfa.2740120504

✦ Synopsis

Abstract

The initial quality of eggs from pullets and hens of the same strain under intensive and extensive systems of management have been studied over a twelve‐month period. Candling quality, percentage thick white, yolk index, the occurrence of meat and blood spots, and yolk and shell colours were recorded. The eggs were also examined by visual comparison with graded picture charts. The system of management had little effect on the quality of the eggs except that access to range resulted in slightly darker yolks, and in slightly improved appearance of the albumen during the winter months. Changes of quality due to the maturing of pullets were small compared with the effects of season. Different measures of quality were differently affected by season.