Feeding a high-producing dairy cow is like cornering a sports car at 140 km/h. It is great fun until you hit a pothole, then everything goes spectacularly wrong. Safety, nutritional safety, is a topic that is very close to my heart. Factors that endanger the quality of feed and the health of our animals must be viewed as the nasty, axle-breaking potholes that they are. There are three types of nutritional potholes: change, forage and feeding.