Lesson #20 Breeding, Raising Backyard Chicken Strict Culling A Must In Chicken Breeding A chicken breeder worth his salt must undertake strict culling of inferior quality fowls. Culling simply means eliminating and slaughtering prospective breeding materials which do not meet the standards. First to go are the runts or the smallest in the flock because they will produce small birds as well. Second to go would be those with deformities like crooked breastbone, short legs and short necks. Third wo