Suzanne, I stopped using Costco food after my Frenchie had anemia and died. She also had a uti and other issues. Both my Boston Terrier and Frenchie were throwing up at least twice a week on Costco food (kibbles and canned) and unfortunately I didn’t switch foods soon enough. Marylou, dogs know when the food is bad as they can smell a lot better than we can. My daughter’s cat does the same thing, sometimes the canned food she opens, the cat will sniff and walk away even though it’s the same food he goes crazy for. She then knows it’s a bad batch and opens a new can. If all the cans have the same lot # then most likely they’re all bad. You should return the food to Costco and get your money back! They require at least 50% but if you tell them it got your dogs sick they should take it back regardless.
My 10 yr old Boston Terrier is doing well on her new food (Acana duck and pear and I top her food with 1/2 patty of Duck Duck Goose raw freeze-dried dinner patty from Stella & Chewy’s). I’m spending more on food now but it’s worth it if it saves me on vet visits and illness. I’m also feeding my Vizsla puppy the same food because it’s for all stages (it has DHA and Glucosamine). I don’t buy canned food anymore as mix in, the freeze-dried patties are enough as my dogs love these. They tried the lamb patties, but they prefer the duck. I highly recommend Acana, Orijen, or Fromm.
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