Can I ask how you're testing? This is something I'd like to do for Peggy's allergies/anal glands
I’m buying pre-made raw food containing one single protein, no vegetables, nothing else (except green beef tripe in some recipes). She’s having no carbs, no fillers, no supplements, or anything else. Green tripe makes the meal complete and she loves it !
boldraw.com
The only treats she’s having are dried turkey and dried duck (which hasn’t been tested per say yet but she was having it before and I took a chance and it’s fine).
So if she has a reaction, there is only one possible cause and it’s easy to spot. When I test a protein, I feed it for 14 days, unless she has a reaction then I stop. When I started the chicken, she had discomfort and started licking her butt after the first meal. I gave her two more meals and she kept having symptoms so I stopped. It took 5 days before she stopped licking her butt from the 3 chicken meals !
After I’ve tested a few more proteins (beef, pork, duck), I will start trying formulas which include more than meat. Then if she has a reaction, since I won’t know which of the many ingredients in the formula she doesn’t tolerate, the whole formula will be banned. When feeding raw, you’re supposed to rotate at least three proteins and if she tolerates those three, plus turkey, then we’ll be good to buy bigger boxes, to save a little money.