Hi Greyfields,
Please bare with me, while I understand the concept of basic genetics, I just haven't used it much since college, so there may be a major flaw in my thinking. The freedom rangers(FR) are hybrid birds Right? Are growth traits double dominant (XX) or single dominant (Xx) in the FR? In other words will the faster growth breed true even though the FRs are hybrids? I realize that growth may not be linked to just one gene(XXYY, XxYy etc.) so it is likely to be a lot more complicated than the above. Are you planing on breeding the cornish X rangers back to cornish stock(or something else) to see if you can have a semi self perpetuating flock? Also was the hen or the roo the FR? Be better if it was the roo I suppose, that way you would only have to replace one chicken from the hatchery every now and again. Thanks
Swamp