2 Year Old Border Collie (may) have developed an intolerance to her food – help

I have a 2 year old border collie. We have been feeding her Eukanuba Performance for over a year with no issues. During a vacation the last two weeks of June, she developed diarrhea within 2 days of staying with a relative. She essentially had it the entire time we were gone since my father-in-law did not really let us in on the severity. When we returned, we had her tested to ensure there were no parasites. She came up clear, so we made her chicken and rice with Metronidazole and Endosorb for 5 days (she was normal but not her usual schedule of once after breakfast and before bed), then worked her food back in. 4 days afterward, she started having diarrhea again. We thought maybe it was stress since she is more than a little high-strung. We switched back to chicken and rice and everything was fine, if a bit irregular. After a week we went back to dog food – diarrhea again within 2 days. I can’t help but think it’s her food now. Maybe the stress of us leaving made her develop an intolerance?

We originally started feeding her Nutro Ultra right after her puppy food, but switched her off of it (to the Eukanuba) as the Nutro seemed to caused loose stools as well. I should mention that the diarrhea itself is (typically) a bit of solid followed by splat with a lot of mucus (snot) but no blood unless she’s had it for a few days, so we think it may be large colon issues – if that has any bearing.

A) It seems the Eukanuba Performance packaging was changed recently, but it seemed that the ingredients had not been changed. Not sure if anyone else has had issues.

B)If her food is the culprit, how do I go about trying new foods – she has eaten Eukanuba for 23 of her 24 months. Any suggestions or tips would be appreciated!

• This topic was modified 9 years, 12 months ago by Beth S.