I have 27 chickens [10 Rhode Island Reds, 5 Production Reds, 6 Barred Rock, 6 Orpington Buffs] that are between 30 & 38 weeks old. I have been feeding laying pellets since July 16th.... and no eggs. I have turned off all outdoor lighting around their coop. I have given Wazine 17 dewormer..... I have 7 dusted.... and am still wondering what has happened to the eggs...... Please Advise!