Chicken feed

[tbracken]

At what age do you change from chic feed to something else? And what is the next feed to give them? I also have four guineas.

 

[ChickenCanoe]

The bag of feed you bought should have feeding instructions on it, at what age to change feeds and what to change to.
Most bags I've bought in the last 10 years or so have been like that.
It depends on what kind of birds you are raising, I assume pullets for egg production.
Each manufacturer knows their ingredients and the birds they are intended to feed so it can vary from company to company.

Young birds need higher protein, maturing birds need less, then it goes up again slightly when egg production starts.
18-20% for chicks, that can be cut back after about 12 weeks.

Non laying birds shouldn't be eating layer feed (4% calcium). All other feeds are about 1% calcium.