The question would be simple if we took it literally, egg laying animals existed far before chickens came about, So technically the egg came before the chicken.
如果我们只看字面意思问题就变得很简单了，卵生动物在鸡类之前很早就出现了，所以技术上讲是蛋先于鸡。
In this paper, the effects of sodium humate on laying performance of Nick(Parent Stock) egg genus chicken aged 48 weeks was studied.
为研究腐植酸钠对蛋种鸡生产性能的影响，选用48周龄尼克红父母代蛋鸡进行试验。
The property of egg - laying chicken was also studied.
同时考查了高碘蛋生产阶段乌骨鸡的生产性能。
The property of egg - laying chicken was also studied.
同时考查了高碘蛋生产阶段乌骨鸡的生产性能。
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