In future, Dr Butt envisages, the egg-sorting operation of a large hatchery might look like this: A conveyor belt moves the eggs along, gently jostling them until their allantoic sacs point upright.

展望未来，Butt博士表示，今后大型孵化工厂的鸡蛋选育操作都会像他所设想的那样：鸡蛋由传送带运输，它们互相碰撞，直到鸡蛋较小的一头（尿囊处在较小的一头）都垂直朝上，之后这些鸡蛋便整齐的排列在一排针管之下。

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