蛋孵化 meaning in Chinese

egg incubation
hatching

When is the right time report the new born ? after the laying of eggs or immediately after the eggs are hatched
须在其产卵蛋后立即呈报或是在卵蛋孵化后才呈报？
The buried dung serves as a source of food for adult beetles , and also for the larvae when they hatch from eggs laid on the dung - balls
被埋葬的粪球用于成年甲虫食物来源，也是幼虫的食物当它们从所在粪球里的蛋孵化出来的时候。
He runs back to his farm and hides the egg in the chicken coop among the rest of the chicken eggs . he knew the chickens would sit on the egg and hatch it
他走到鸡笼那里，要把蛋放在鸡群里，因为他知道这样做，鸡就会把蛋孵化，他就这样做了