How long can chicks stay in bator before needing to be fed

[countryboy1]

This is the first time I ever have incubated and was wondering how long the chicks can be in the batoor before they need water and food. Because most likely I will be at school when they hatch. And how long do they have to stay in the incubator before going into brooder.

Thanks Tyler

 

[mstricer]

They can survive 72 hrs on their yolk bit of yolk. Thats what makes shipping of day olds possible.