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How long??

Discussion in 'Cat Chat' started by Tigermoon, Sep 19, 2013.

  1. Tigermoon

    Tigermoon PetForums VIP

    Apr 2, 2013
    Likes Received:
    Does anyone know how long a cat may take to display an allergy reaction to a change of food? I changed from royal canin dry to porta 21 eight weeks ago and now one of my cats has licked all of his fur from his tummy. I took him to the vets to check for nasties but he was given the all clear. The vet suggested stress but nothing has changed in the house since January! I have noticed that the cat also starches a lot behind his ears and the fur is shorter there than the rest of his ruff. I was wondering if the porta had given him itchy skin?
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