Just wondering if anyone has experience growing cornish cross on soy-free food. We have a batch of 40 that a customer ordered and is currently eating soy-free food from Modesto Milling. It is a starter/grower that is 22% protein. This is the ingredient list: organic corn, organic sesame meal, organic peas, limestone, Redmond Conditioner (clay), diatomaceous earth, kelp meal, Redmond Sea Salt, monocalcium phosphate, DL methionine, poultry vitamin & mineral premix, dried aspergillus niger fermentation product, organic garlic, organic horseradish, organic anise oil, organic juniper berry. Guaranteed Analysis: Crude protein min 22%, crude fat min 7.0, crude fiber max 4.9, ash max 7.7% We have another 35 birds that are on our regular organic starter/grower also from Modesto Milling and also 22% protien. This is the ingredient list for the regular feed: organic Corn, organic soybean meal, limestone, monocalcium phosphate, organic kelp meal, diatomaceous earth, Redmond conditioner (clay), Redmond salt, DL methionine, poultry vitamin & mineral premix, organic garlic, organic horseradish, organic anise oil, organic juniper berry Guaranteed analysis: Crude protein min 22%, crude fat min 4.2%, crude fiber max 4.4%, ash max 9.1% The birds on the soy-free are noticeably smaller than the others. They are all from the same hatch and are almost three weeks old. I'm assuming that all we can do is keep them a little longer and process them later to get the same size bird. Why do you suppose there is such a difference between the two when the protein content (as far as percentage), is the same? Is there anything we could add to up their growth that would stay within the soy-free guidelines?