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Effect of Embryonic Development on the Chicken Egg Yolk Plasma Proteome after 12 Days of Incubation

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Mann,  Karlheinz
Mann, Matthias / Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Max Planck Society;

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Citation

Rehault-Godbert, S., Mann, K., Bourin, M., Brionne, A., & Nys, Y. (2014). Effect of Embryonic Development on the Chicken Egg Yolk Plasma Proteome after 12 Days of Incubation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 62(12), 2531-2540. doi:10.1021/jf404512x.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-8B8B-B
Abstract
To better appreciate the dynamics of yolk proteins during embryonic development, we analyzed the protein quantitative changes occurring in the yolk plasma at the day of lay and after 12 days of incubation, by comparing unfertilized and fertilized chicken eggs. Of the 127 identified proteins, 69 showed relative abundance differences among conditions. Alpha-fetoprotein and two uncharacterized proteins (F1NHB8 and F1NMM2) were identified for the first time in the egg. After 12 days of incubation, five proteins (vitronectin, alpha-fetoprotein, similar to thrombin, apolipoprotein B, and apovitellenin-I) showed a major increase in relative abundance, whereas 15 proteins showed a significant decrease in the yolks of fertilized eggs. In unfertilized/table eggs, we observed an accumulation of proteins likely to originate from other egg compartments during incubation. This study provides basic knowledge on the utilization of egg yolk proteins by the embryo and gives some insight into how storage can affect egg quality.