Chi‐Un Lei;Qiuxia;Jiwen Lu;Victoria C. Yan;Sang-Min Han;Haixia;Jiannong Cao;Ding-guo;Qing Li;Fu-wei;Quan Zhou;Gui-ming;Biao Huang;Baohua;Kan W

hens;brown;shandong;hyline;local;egg qualit

[Objective]To observe differences in egg quality between Shandong local hens and Hyline Brown hens.[Method]Hyline Brown hens and three Shandong local chicken breeds including Jining Bairi chicken,Wenshang Luhua chicken and Laiwu Black chicken were selected for egg quality comparison.[Result]The percentage of yolk,egg-shape index and shell strength were significantly higher in the Shandong local hens than in Hyline Brown hens(P0.05),but the opposite results were found for average egg size and Haugh unit(P0.05).The contents of essential amino acids and linoleic acid were significantly higher in the eggs of Shandong local hens than in Hyline Brown hens(P 0.05),but no significant difference in vitamin A content,vitamin E content,total amino acid content and fatty acid content was found between the Shandong local hens than in Hyline Brown hens.[Conclusion]The study investigated the differences of egg quality between different chicken breeds,which provides a reference for improvement of laying chicken breeds in future.