This is a fantastic article to read, it is about home grown chicken (not cornish crosses) and age/weight to butcher plus some cooking tips: www.albc-usa.org/documents/cookingwheritagechicken.pdf
I like to do my dual purpose males at about 20 weeks roughly - generally gives me an approx. 4 to 5 pound bird once fully processed. I am also a chopper (use to use an axe but now I use a very nice knife). Off with the head, let bled out until done, then into the scald water (mine is usually 145 to 150), swish in water for a rough count of 30 - a good test is to pull a wing feather, if it pulls easy the bird is done scalding. Then I sometimes rinse in cold water but often not, just pluck away. Then I loosen the crop/throat area, then cut just above the vent to around the vent, carefully to not nick any internal junk, reach my hand inside the body to loosen the guts and then pull them out, lungs are attached to the bird's back/ribs so often need to be worked out. Then trim up the legs/neck and into the fridge to rest (I let them rest 3 to 4 days before freezing, usually in lightly salted water).
Good luck and great eating.
I like to do my dual purpose males at about 20 weeks roughly - generally gives me an approx. 4 to 5 pound bird once fully processed. I am also a chopper (use to use an axe but now I use a very nice knife). Off with the head, let bled out until done, then into the scald water (mine is usually 145 to 150), swish in water for a rough count of 30 - a good test is to pull a wing feather, if it pulls easy the bird is done scalding. Then I sometimes rinse in cold water but often not, just pluck away. Then I loosen the crop/throat area, then cut just above the vent to around the vent, carefully to not nick any internal junk, reach my hand inside the body to loosen the guts and then pull them out, lungs are attached to the bird's back/ribs so often need to be worked out. Then trim up the legs/neck and into the fridge to rest (I let them rest 3 to 4 days before freezing, usually in lightly salted water).
Good luck and great eating.