I'm NEW to all this...My pullets are 5 weeks old. They started with chick starter and are now on developer until they start laying...then i'm told to give them layer food...I'm reading a lot on here about giving lots of protien because they are growing...i'm sure the developer has the right amount of protein but i'd like to give them more...what kind of treats can I give them that they would like that are high in protein ?