When you bring your new puppy home always keep him or her on the same food that the breeder had him or her on for at least 2 weeks. Then you can slowly change it, if you feel the need to.
To change the food introduce the new food into the puppy's diet mixed with the old food over a 10 day to 2 week period gradually adding a little bit more new food & a little less old food each day. By the end of the 2 week period the puppy will be completely switched to the new food.
I always reccommend a NATURAL PREMIUM DOG FOOD. I personally reccommend AVODERM NATURAL PREMIUM DOG FOOD. All of my dogs have always done fantastic on it! I would NEVER feed a 'grocery store' type dog food!
If your dog is scratching & biting it's fur & tail they usually either have fleas or are allergic to their food. Dogs with allergies also lick their paws constantly.
The top ingredients in dog food that dogs are usually allergic to are WHEAT, CORN, BEEF, & PRESERVATIVES. Avoderm Natural Pet foods do not contain any wheat, corn, beef or preservatives in any of their varieties of dog & cat foods.
Take some time & read the labels & it will help you decide what food you really do want to feed your dog. The #1 ingredient should be a MEAT not a GRAIN!
Dogs need clear, clean water available to them constantly.
I have found that if I give my dogs filtered water exclusively then I do not get any yellow spots on my yard. Try it, it really works!