If it was me and my dog I'd probably try 1/2 and 1/2 for a week and then 1/4 and 3/4 (TOTW) until the old food is gone.
I have switched my dogs between foods but of the same brand/protein source quicker than that but one of my dogs has a sensitive tummy and sometimes it will cause her to have soft stools.
If you don't have that much of the old food then maybe you can just use your best judgement and see how the stools come out and that she doesn't seem to feel ill.
I'm sure you don't want to go out and buy another bag of the old food just for the switch-over and I can't blame you for that.
My Ruby has an iron gut, so all I have ever done is 50/50 for awhile till 'the mix' runs out, which can be 3+ weeks depending on how much is left of the old bag when I buy a new bag.... I've been 'thinking' about going back to TOTW (from Costco's Kirlkand food) but if I do anything I want it to be a change away from not within the Diamond line.... Grrrr - can't decide!
well this is day 3 of the mix. I feed her 3 times a day twice kibble and once raw and her poop is still solid. doesnt seem like its doing any harm. (knocks on wood)
jbey11 wrote:well this is day 3 of the mix. I feed her 3 times a day twice kibble and once raw and her poop is still solid. doesnt seem like its doing any harm. (knocks on wood)