This doesn't apply to a lot of people, but my experience with chicken
antibodies is that chickens don't lay many eggs during the summer in Arizona.
It's just too hot for them. Ours were housed in a facility that used only
evaporative cooling which doesn't work too well during the humid months of
July and August. It's just something to consider if you happen to be in an
area where weather conditions are similar to Tucson.