Sarı tüy rengindeki (Coturnix japonica) bıldırcınlarda farklı yaş ve depolama sürelerinin yumurta kalite özellikleri üzerine etkisi

Abstract

The internal and external quality characteristics of the hatching eggs stored in yellow feather colored Japanese quails at the ages of 8, 12, 16, 20, 24, 28 and 32 weeks in 7 and 14 days were investigated. Methods and Results: Trial material eggs were obtained from yellow quail colored quail in 7 different age periods between 8 and 32 weeks old. External and internal quality characteristics of 75 eggs for each storage period (0, 7 and 14 days) and 1575 eggs for 7 different age periods were determined. Results changed according to storage periods. The effect of age on egg weight was found to be significant. The shape index decreased with increasing age. The interaction between bird age, storage time and age x storage time on white index was found significant. Haugh unit was affected by storage period and bird age. The yellow index value of control group which was not was significantly lower than 7 and 14 days storage period groups. Storage period, age and interaction between storage period and age was significantly affected albumen ratio. Yolk ratio changed by age. Yolk index value decreased. Shell weight per unit surface area varied with storage time and animal age. The effect of storage time has become insignificant. Conclusions: The effects of breeder age, storage period and environmental factors on egg internal and external quality characteristics of Japanese egg quail in yellow feathers were found to be significant. Significance and Impact of the Study: This study is expected to provide information for further studies.

Comparison of growth curves with non-linear models in Japanese quails of different plumage color

“…One of the plumage colors is yellow plumage color which determined by an outosomal dominant mutation (Minvielle et al 2007). This sub-variate of Japanese quail is also known as Italian or Jumbo quail (Avşar andAkpınar 2020, Ibrahim et al 2021) .…”