I have a 6 week old Cornish/Rock cross meat bird that has decided to give up walking. I find no injury on palpation of the left leg but he sticks it out and refuses to stand. I have separated him from the others by putting him in an extra-large dog crate (in the pen with the other chickens so he can still see and chit-chat with them). He has his own food/water so they don't trample him and he seems perfectly ok with this arrangement. He continues to eat and drink well, and is lively and chatty other than not walking around. My question is this... will he continue to grow under this circumstance or should I cull him now in spite of his relative vigor? He's not quite big enough to eat yet and I hate to waste an otherwise healthy bird.