Not really sure where this might be available in Jackson, MS. I am going to go out on a limb and say try PetSmart up in Flowood (Confirmed on their site). This sounds like high-end dog food.
We have noticed lately a flurry of new Dog Food products on the market and we have tried a few. The one the dogs like best is Simply Nourish, followed by Iams. They seem to like the morsel sizes better than the larger chunks.
Oh and they LOVE wet food. We mix in a tablespoon with their dry food and they are dancing in the streets wanting to eat.
The coupon is available from RedPlum so head over HERE to get it or click on the picture or the link below.
Cool, I did a bit of reading on Ultra and it is a densely packaged holistic dog food. Their website gives more details.