How about these:

Bark Bark Foods/Cuisine
Woof Woof Foods/Cuisine

Are you sure you just want to limit yourself to dogs? Why not cats too? If so, maybe:
Animal Eatery
Animal Foods
For All Animals

Whatever you get, make sure that you can get the domain name. You don't have to worry about getting a website right away, but in the long run, you will want to be able to sell your products online.

Oh, also, how is your dog food going to be any different from other dog food? Consider that and then if you come up with one word or phrase, maybe you could use that in your business name? Like Bark Bark Organics?

Best of luck!!

~~~~~~~~~