What is the hachery duration of chicken?

Here's why:

* Hatchery refers to the place where eggs are incubated and chicks hatch.

* Duration refers to the length of time something lasts.

Therefore, "hatchery duration" is a nonsensical term.

Here's what you may be looking for:

* Incubation period: This refers to the time it takes for a chicken egg to hatch, which is typically 21 days.

* Time spent in the hatchery: This can vary depending on the hatchery's processes, but chicks typically stay in the hatchery for a few days after hatching to ensure they are healthy and strong before being shipped to farms.

Let me know if you have any further questions about chicken hatching or raising!