研究人员发现，蛋壳只有在一种蛋白质的催化下才能形成，而这种物质只存在于鸡的卵巢内。
Researchers found that the formation of egg shells relies on a protein found only in a chicken’s ovaries, according to The Sun of London.
研究人员发现，蛋壳只有在一种蛋白质的催化下才能形成，而这种物质只存在于鸡的卵巢内。
Researchers found that the formation of egg shells relies on a protein found only in a chicken's ovaries, according to The Sun of London.
英国科学家在2010年就发现，要想形成蛋壳，必须要有一种蛋白质ovocleidin - 17 (oc - 17)，而这种蛋白质只专属于鸡。
In 2010, a British scientist found that ovocleidin-17 (OC-17), an essential protein for the eggshell construction, was particularly in the body of the chicken only.
因此很可能在史前时代，第一只进化成为我们称之为鸡的鸟，应当首先是以蛋壳内的鸡胚形式存在。
Therefore the first bird that evolved into what we would call a chicken, probably in prehistoric times, must have first existed as an embryo inside an egg.
他说，蛋壳内的活体应当拥有与鸡相同的基因，即使它成为鸡的基因。
The living organism inside the eggshell would have had the same DNA as the chicken it would develop into, he said.
具体来说，就是一种鸡的蛋白质在形成蛋壳时所起的重要作用。
Specifically the vital role played by a chicken protein in forming it.
鸡蛋里头有只鸡宝宝，从蛋壳里跳出来，接着飞出窗外。
Inside, there was a baby chicken. It jumped out of the shell and flew out the window.
青脚麻鸡的蛋壳强度显著高于其他品种。
The trait of eggshell strength was the highest in Green legs chicken.
矮小型鸡的蛋壳厚度、强度和蛋黄颜色均优于普通型蛋鸡。
Eggshell thickness, strength and yolk colour of dwarf layers were significantly better than those of normal layers.
旧院黑鸡蓝壳蛋蛋壳强度比其他非蓝壳蛋蛋壳高。
The mechanical strength of blue eggshells from " Jiuyuan Black Fowls" is greater than non -blue eggshells from other chickens.
旧院黑鸡蓝壳蛋蛋壳强度比其他非蓝壳蛋蛋壳高。
The mechanical strength of blue eggshells from " Jiuyuan Black Fowls" is greater than non -blue eggshells from other chickens.
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