Organic Layer 14% - Mature laying hens, 60 wks to finish. Organic Layer 16% - Phase 2: Mature laying hens, 50-80 wks of age. Organic Layer 18% - Phase 1: Laying hens, 18-20 wks. Organic Chick Starter Crumble - Day 1 thru 5 weeks or up to 2 lbs. Organic 16% Chick Gower - 5 wks to 18-20 wks. Organic Poultry Builder - Mix w/corn & soybeans meal for complete poultry feed. If raising chickens for egg laying purposes only and they are not laying eggs yet(say 15 weeks old), which feed would you feed them?