Chickens are hatched in an artificial incubator. This is a device that mimics the conditions found under a brood hen. Temperatures of 100.5 F and humidity of +60%. Chicken need 21 days of these conditions to develop inside the egg. Of course, chickens are still hatched the old fashioned way, under a broody hen but only on small farms and breeder sites.
Many things can walk when they hatch including chickens.
Use eggs.
Chickens only lay eggs. Baby chickens (chicks) hatch from those eggs and grow up. If the eggs are not fertilized, however, then they will not hatch. Those are the ones that are eaten.
No, there is not.
sometimes matters though.
chickens hatch on the 21st day after the 24th day you should give up.
well they can after maybe an hour
Yes they can. This is how it has always been done!
People use chickens to lay (eggs), hatch chicks, raise for meat and to show them off.
The sentence contains one noun (chickens) and one pronoun (they).
No they dont, they lay eggs and have to hatch them the same as chickens do.
Only if you want to hatch chicks. Then, no you don't have to.