Posts Tagged ‘injured trachea’

Twenty-five years ago, when I started my professional training career, the only choices for collars were either a choke collar, prong/pinch type collar or nylon/cotton/leather collar. The old-style choke or prong collars used the “pop-n-jerk” method of training, which operated on a negative leash/collar correction when the dog did not respond appropriately. A flat collar…