EGG AND CHICK QUALITY CHARACTERISTICS OF MEAT TYPE JAPANESE QUAIL (COTURNIX COTURNIX JAPONICA) LINE BY CANONICAL CORRELATION ANALYSIS

摘要

Canonical correlation analysis is a multivariate analysis technique used to determine the relationships between two data sets with more than one variable. The use of canonical correlation analysis in biological studies about revealing the relations of quantitative characteristics can provide additional information to the investigator. In this study, total of 146 meat type female quails were used. 13 eggs were collected from each of 15-week-old and pedigree- raised quails. Four of these eggs were used for egg quality characteristics, 5 for chick quality characteristics analysis and 4 for egg protein analysis. The egg quality characteristics that are discussed in the research are; egg weight (EW), shape index (SI), shell weight (SW), albumen weight (AW), yolk weight (YW), albumen density (AD), yolk density (YD), and egg crude protein (CP) content. Chick quality features are; hatching weight (HW), daily chick weight (CW) and chick length (CL). As a result of the research, high canonical correlations (0.907) between egg quality characteristics and chick quality characteristics were determined. When egg quality characteristics are supposed as independent variables (X) and chick quality characteristics dependent variables (Y), 82.30 of the total variation in the Y variable set can be explained by the X variable set. This suggests that egg quality characteristics are likely to be determinants of chick quality characteristics. In the formation of the canonical variables in the egg quality traits set, the albumen weight had the highest contribution as the original values whereas in chick quality traits set, chick weight had the highest additive value.