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- Title
Effects of Cage Stocking Density on Egg Quality Traits in Japanese Quails.
- Authors
EL-TARABANY, Mahmoud Salah; ABDEL-HAMID, Tamer Mohamed; MOHAMMED, Hesham Hosny
- Abstract
This study was conducted to investigate the effects of different stocking densities on external and internal egg quality traits and to measure the phenotypic correlation coefficients between external and internal egg quality traits. Two hundred and sixteen birds of Japanese quail at 14th week of age were used in this experiment. The birds were divided randomly into three groups, 60, 72 and 84. Each group subdivided into 4 replicates, where the cages floor spaces were 200, 167 and 143 cmVbird; respectively. The obtained results revealed that birds housed at 200 cmVbird laid heavier egg weight (12.24 g), with significant (P<0.05) higher external quality traits, including shell weight (1.27 g), eggshell ratio (10.55%), shell thickness (0.23 mm) and egg shell density (48.70 mg/cm2). Similarly, internal quality traits, including yolk height (10.72 mm), albumen height (5.67 mm), yolk diameter (24.97 mm), yolk index (43.49%) and Haugh unit (92.77). Shell weight positively correlated with yolk height (P<0.01), albumen height (P<0.01), albumen weight (P<0 05) and haugh unit (P<0.01). It was concluded that, housing Japanese quail at low cage floor space associated with depression in external and internal egg quality traits. Moreover there is an economical hazard of housing quails at cage floor space lower than 200 cm2/bird.
- Subjects
BIRDCAGES; BIRD eggs; JAPANESE quail; JAPANESE quail as laboratory animals; EGG quality; EGGSHELLS; REPRODUCTION
- Publication
Kafkas Universitesi Veteriner Fakultesi Dergisi, 2015, Vol 21, Issue 1, p13
- ISSN
1300-6045
- Publication type
Article
- DOI
10.9775/kvfd.2014.11374