Treats for dog on a Urinary Tract Prescription food?

I have a five month male Jack Russel puppy who has had three rounds of antibiotics and now is on Hills Science prescription C/D dog food for UTI's. He has a strong food drive and I was wondering if there are any natural treats I can give him that won't interfere with his special food.

http://www.hillspet.com/en/us/products/pd-canine-ud-dry
You could always buy a bag of this and use as treats. To keep it fresh after opening you could either freeze it or keep in an airtight container. If you go onto the website there is a coupon on offer.

I think some of our members (and on Breedia) give dogs Sauerkraut - a brilliant source of probiotics. Just depends if your dog will like it

dehydrate meat and use as reward treats
long lasting treats use bones
ATD x