If your’e still feeding kibble, then I would suggest just feeding once or twice a day (unless your dog has blood sugar issues or is a puppy). Canines don’t have to eat consistently and they are not like us. And some owners fast their dogs for 24 hours or more each week. Kibble can take many hours to process (some dogs even throw up whole kibble after 12 hours) and feeding them more than every 12 hours can keep their system “backed up” in a way. Also the body is always using it’s energy/enzyme stores towards the process of digestion and not getting a break. Enzymes are used at the cellular level for repair and other processes.
As for rotation, you can do it anyway that’s convenient for you. Some people have more space to keep more variety of foods. Some people can only hold about 2 bags of food at a time. You can change flavors with each bag you buy or you can serve one food for breakfast and a different food for dinner.
