Salty egg is what and salty

" mother, why aren't this egg and the yolk of salty egg same? " daughter sees the annual egg of salty yolk and hand in bowl to say. Yes, in salty yolk yellow tape point is green, and there is still bright pool, because make oil. Weak egg yellow is golden yellow color have not lit yet pool. " is oh, I how to have no discovery , you can observe really. " I say , child likes to have been praised. " I think that is because salty egg has passed chemical reaction " I also do not know how to say with her that understand this matter, being thinking to go take off say that have passed processing after is just salty. And she has again asked a problem: Mother, is salty egg the egg that salty hen takes off? " is not, this kind of salty egg is done by duck's egg. " I say. " I know why is salty " daughter says gladly. " why? " one of my face Huo Yi. " because of duck is when the life of nautical mile, seawater is salty, so, duck's egg is salty. " " is so oh originally, your real stick " I smile says. Let her think that come so. After few days, say again with her that salty egg is what and salty.