Opinions on how much fermented feed my chicks will eat.

[Finelyfound]

I Need some expert opinions on feeding. I have spent the past week (while my husband is traveling) reading the endless feeding advice on the BYC forums.
I am new to chickens, but have spent the past 5yrs very patiently researching them while we waited to relocate to VA
The area we live in has a poor selection (IMO) of chicken feed and no nearby mills.
However, I have found that New Country Organics has a once monthly delivery to my town. So I can order a feed that I think I will be very happy with.
I will be fermenting the feed.
My dilemma is, how much to order for 25 chicks? I have read a number of conflicting opinions on how much they will eat. They are a variety of breeds.
I won't be able to just pop out to the feed store to get more, but it's not a cheap feed and I don't want to buy more than I will need.
The information contained in these forums is an absolute goldmine to a newbie like myself, but can be very overwhelming to the point of having to take notes because the threads are so long I can never manage get back to the info. I need.
Thank you
Jocelyn

 

[0wen]

Are your chickens meat birds or egg birds? Production egg layers or dual purpose breeds? Will they be able to free range or be confined?

 

[Finelyfound]

They will be a variety of layer/duel purpose breeds. They will have access to a roughly 60X100 grass paddock during the day. My LGDs will only be outside of the paddock, so the amount of time the chickens will get to free range without human supervision will depend on how well the dogs control the Hawks without actually being inside the pen with the birds.
The chicks are arriving in 2 weeks and I would like to place a feed order, I'm just not sure how much to get.

 

[0wen]

I think you'll need 4-5 bags (assuming 50lb bags) per month to cover 25 dual-purpose breed chickens.