OE's are a cross between a blue egg layer breed and dark brown egg layer breed whose female offspring should lay olive colored eggs. 'Hybrids' usually refer to a high production layer like sexlinks and are given one of many names by the hatchery that produces them using a 'secret' mix of breeds and crosses. 'Heritage' is a tricky term and it's unlikely you have truly heritage breeds if they came from a typical hatchery.all heritage breeds except for the Olive Eggers which I know they are hybrids.......One last question: what is the best age to process these hybrids before they are stringy? 2, 3, 4 months? I am planning to separate them as soon as the mother lets me and feed them a hi protein diet and free range.
Anyway, vocabulary aside.
I slaughter cockerels at 13-16 weeks, before they start causing too much chaos and while still tender enough to grill for that crispy skinned deliciousness. Not much meat but the grilled bones make for some excellent stock. Anything older than that I rest the carcass longer and pressure cook until meat is done and is saved aside then a couple more hours to get that bone broth.
Resting the cleaned carcass in fridge for 48-72 hours for rigor to pass is essential for chewable meat from any bird(except maybe CX?). Tho no homegrown bird I've eaten, layer or meat breed, is as soft as a grocery bird, they are more 'toothsome'. If the meat is 'stringy' I cut it into smaller pieces.