Nicamarvin,

I don’t keep many weight records _ weigh my adults though. I use a hands on grading system like the one used by the American Livestock Breed Conservancy for the buckeye project.

Here are a couple links to those PDF’s:
http://www.albc-usa.org/documents/ALBCchicken_assessment-1.pdf
or
http://www.albc-usa.org/documents/ALBCchicken_assessment-2.pdf

Dan