Im starting to get at my wits ends with Jess and i need alittle help, She is a 6month old BC and she doesnt seem to beable to have solid poos for a day or too and then its runny/soft (like melting ice cream is the best to describe it) or she has diarrhea. now when i got her the breeder told me she has been fed on Wagg working dog food and she gave me a pack to get me started. i was at the vet last week and was talking about puppy milk and the vet asked what i was feeding her and said she should of been fed on puppy food till 1 year old, ive tried mix her 2 foods till she gets used to the puppy stuff but she just seems to have the runs alot. can you suggets any other food that a border collie would like.