Is there a chart with optimum age/weight to process DP birds?

[MoriahQuilts]

When purchasing layers I chose DP breeds. Of course some turned out to be roos. I need to know when to process the different breeds, or when they stop gaining weight and quality of meat declines. Buff Orp, Wyandotte, Australorp, Faverolles, Marans.

 

[booker81]

The beauty of DP birds is that there is no "expiration date" for them - you can process early or late, and your window of opportunity runs about 15 weeks to 2 years+ depending on what you are looking for.

This is an excellent PDF of the true ranges and types for DP birds, including the differences in cooking for each age/size

http://www.albc-usa.org/documents/cookingwheritagechicken.pdf

I've personally eaten DP between 15 weeks and 2 years old, and each was delicious when cooked the appropriate way for it's class

 

[MoriahQuilts]

Thank you for the information - its very helpful!