Abstract
Impacts of different stocking densities and feed restriction on egg production and quality and blood biochemicals of laying Japanese quail (Coturnix coturnix Japonica) were studied. A total number of 360 adult Japanese quails were used in an experiment, including two stocking densities (300 and 200 cm2/bird) and four feed restriction levels (ad libitum, 25, 30 and 35 g/day/bird). As a result of this study, feed restriction (30 g/bird/day) enhanced most of egg production traits and improved hatchability. Albumen and egg shell thickness showed the highest values when birds fed ad libitum and 35 g/bird/day. Blood total protein, albumin, Aspartate Aminotransferase (AST) and cholesterol were higher in quails housed at 200 cm2/bird than those kept at 300 cm2/bird. The highest values of blood total protein, albumin, AST and cholesterol were found in quails fed ad libitum. Activity of superoxide dismutase was the highest estimate when birds stocked at 300 cm2/bird and fed ad libitum or 25 g/day. Conclusively, decreasing space per bird had a negative effect on performance. Feed restriction can achieve a better feed conversion ratio (FCR).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
