I am a rotator. I like the Innova large breed, Fromm 4 star line and Acana (waiting to see how all these new formulas/changes wash out for the time being). Also use The Honest Kitchen or Trippets green tripe as toppers.
I like to rotate both within a company as well as among a few carefully chosen companies. Neither Bentley nor my lab is a finicky eater whatsoever. I rotate because I believe it enhances their digestive capabilities and immune system; because it balances out the highs and lows of vitamins and minerals in the various formulas; and because my dogs will have some success with other formulas in case one is discontinued or recalled.
In the past year my dogs have had Innova (but this one was only for the puppy), Solid Gold (barking at the moon), Instinct, Honest Kitchen, and now Acana Grasslands. But mostly they eat raw. I want them to have variety because I have not found a perfect food that I think meets all needs all the time.
When we first had Amber we thought we would alternate the kibbles flavour (SAME BRAND) to give her more variety but we noticed that her tummy didn't like it whilst on James Wellbeloved Kibbles Turkey & Rice.
For other reasons, we recently changed Amber's food from James Wellbeloved Kibbles to Arden Grange as we wanted something with a little more meat as our big baby girl is now over 3 years old.
On a regular basis we buy a big 15Kgs bag of: Adult Large Breed: with fresh chicken & rice.
Every three months (which most of time coincides with a special time)
Dec=Xmas-Mar=Birthday-Jun=Summer-Sep=Autumn we buy a 2.5Kgs bag of: Premium: rich in fresh chicken (we hope she will like this new treat in December. She has not had it yet.
Once we open a little bag we continue feeding until bag is empty then we go back to normal feed until the next treat time period.