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Shaker, A., Abdulla, S. (2018). PRINCIPAL COMPONENT ANALYSIS OF INTERNAL EGG TRAITS FOR FOUR GENETIC GROUPS OF LOCAL CHICKEN. Egyptian Poultry Science Journal, 38(2), 699-706.
Ahmed Sami Shaker; Shanaz Mustafa Abdulla. "PRINCIPAL COMPONENT ANALYSIS OF INTERNAL EGG TRAITS FOR FOUR GENETIC GROUPS OF LOCAL CHICKEN". Egyptian Poultry Science Journal, 38, 2, 2018, 699-706.
Shaker, A., Abdulla, S. (2018). 'PRINCIPAL COMPONENT ANALYSIS OF INTERNAL EGG TRAITS FOR FOUR GENETIC GROUPS OF LOCAL CHICKEN', Egyptian Poultry Science Journal, 38(2), pp. 699-706.
Shaker, A., Abdulla, S. PRINCIPAL COMPONENT ANALYSIS OF INTERNAL EGG TRAITS FOR FOUR GENETIC GROUPS OF LOCAL CHICKEN. Egyptian Poultry Science Journal, 2018; 38(2): 699-706.

PRINCIPAL COMPONENT ANALYSIS OF INTERNAL EGG TRAITS FOR FOUR GENETIC GROUPS OF LOCAL CHICKEN

Article 23, Volume 38, Issue 2, June 2018, Page 699-706  XML PDF (513.06 K)
Document Type: Original Article
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Authors
Ahmed Sami Shaker email orcid ; Shanaz Mustafa Abdulla
Animal Production Department, Directorate of Agricultural Research, Sulaimani, Iraq
Abstract
This study was carried out to investigate the relationship among egg weight and their components in four genetic lines of Kurdish local chicken. 299 eggs were collected from four genetic lines of Kurdish local chicken. After collection, egg weight, yolk weight, albumin weight and shell weight were weighted to nearest (0.01g). The Two principal components (PC1 and PC2) were extracted in Black, Black with brown neck, White shank feather and white non-feathering shank, which explained (82.71, 80.45, 84.09, and 76.40) respectively, of total variation. Significant differences were observed between the four genetic lines (Black, Black with brown neck, white with shank feather, and white non-feathering shank). We found that egg weight highly (P<0.001) correlated with yolk (r2= 0.900, 0.822, 0.898, 0.690) respectively, albumin weight (r2= 0.498, 0.575, 0.524, 0.845) and shell weight (r2= 0.525, 0.549, 0.649, 0.339). It was concluded that egg weight and their component significantly differences among the groups due to the differences in genotypes. These finds could be used to improve egg quality and for selection criteria.
Keywords
Chicken – Internal; egg; traits; PCA
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