I have a mixed flock of several breeds. 21 pullets and 4 cockerels. The average age in my flock is about 12 1/2 weeks so they still have a ways to go before they think about laying. They are finishing up their last bag of chick starter and I'm about to put them on grower/finisher until about 18 weeks. I know the pullets will need layer feed by that time for good healthy egg production, but my pullets and cockerels are mixed together, and eat and drink out of the same dispensers. I don't want to separate the roos because I want them to protect the flock (they free range during the day). Can roosters eat layer feed without health problems?