To me, his comb is pale. I am wondering if he has a heart problem, does it ever turn bluish? A heart problem would lead to the resting and panting. I would not be surprised if you got a sudden death syndrome. It often when a bird approaches full size, what ever genetic defect they have, no longer can keep up with the full size body.
I would not breed this rooster. Something is not right, no need to keep whatever the problem is in your flock.
Mrs K
I would not breed this rooster. Something is not right, no need to keep whatever the problem is in your flock.
Mrs K