I haven’t used dry dog food enough to know how it might work for me. My main bait is deer trimming from a local meat market. They process a lot of deer during the hunting season and they save all the scraps for me. I them cut the pieces up into something like 1” cubes and fill gallon freezer bags. I stock up and it lasts me sometimes as much as two seasons of baiting. And of course I use table scraps quite a lot. A couple family members also save scraps for me.
One thing I plan to try is a liquid skunk scent. I have noticed coyote activity shortly after I shot a skunk, this when it had been so slow for quite a while. Thought I would give it a try.