EFFECT OF ALBUMIN AND YOLK DENSITY ON SOME EGG CHARACTERISTICS OF JAPANESE QUAIL (COTURNIX JAPONICA)

This study was conducted in the laboratories of the animal production department of the college of agriculture/university of Kirkuk for the period from 6/5/2020 to 28/5/2020 using 250 Japanese quail eggs were collected immediately after delivery and conducted thoughtful tests. The aim of this study is to find out the effect of albumen density and yolk density about some of the internal and external qualities of Japanese's quail eggs just like (egg weight, egg height, width, shape indicator, shell thickness, shell weight, albumen and yolk weight, albumen volume, yolk volume and knowledge of the coefficient of genetic association between the characteristics taken in Japanese quail eggs. The results obtained showed that there were many differences in attributes that meant that there was a significant high effect of yolk density and albumen density on the volume of the yolks and the volume of albumen respectively, while there was no significant high effect of those traits of the rest of the qualitative qualities of eggs, and the genetics were arranged from moderate quality to high values. High coefficient genetic correlation indicates the ability to use the egg albumen density and yolk density indicator to improve some external and internal egg quality and the results indicate albumen density and yolk density that can support embryo development and successful hatching. It also suggests that selection would be effective in improving certain egg quality characteristics.