The reason corn is not recommended except as a treat is because it is high in carbohydrates and can sometimes make the chickens fat, which can cause problems with laying. It is also considered a hot feed, which may make the birds uncomfortable in the summer months. Because it is lower in protein, it will dilute the protein content you get from the layer pellets.
However, different situations can affect how your birds respond to what they eat - free ranging adds protein because of the bugs and stuff-grass and other vegetation add different nutrients.
What works for one flock may not be ideal for another. Andi's formula works for her, but may not be the answer for someone else.
HobbyChickener
Speckledhen pretty much hit on the basics. Add oyster shell free choice when the birds start to lay. The rooster won't pay much attention to it. Don't give your chicks only corn. Keep up the starter feed until they are laying age, then switch to layer food. The more experience you gain and the more you observe your flock will determine what works best for them.
However, different situations can affect how your birds respond to what they eat - free ranging adds protein because of the bugs and stuff-grass and other vegetation add different nutrients.
What works for one flock may not be ideal for another. Andi's formula works for her, but may not be the answer for someone else.
HobbyChickener
Speckledhen pretty much hit on the basics. Add oyster shell free choice when the birds start to lay. The rooster won't pay much attention to it. Don't give your chicks only corn. Keep up the starter feed until they are laying age, then switch to layer food. The more experience you gain and the more you observe your flock will determine what works best for them.