Colon bacteria ferment carbohydrates and certain fibers. Both soluble and insoluble fiber in dog food is fermented by colonic bacteria, contributing to flatus. Soybean meal is often used as a protein source in dog food and may contribute to flatulence depending on the amount in the food on a dry matter (DM) basis.
Well, heck, if you swallowed an intact kernel of dried corn, you'd see it in your excrement, because it it would pass through undigested.Sorry, I disagree with that assertion.
Yes, the dog will pass the grains as undigested waste.
Dogs do not have the enzymes or gut length to break down and ferment the grains. The teeth and jaw movement do not support "grinding" of grains like omnivores or herbivores.
My dog will occasionally snatch a corn kernel from under a squirrel feeder. I can count on seeing the whole kernel like a bookmark in his excrement about 6-8 hours later. Not digested, only passed.
This could all be a "chicken vs egg" thing.The amount of grass consumed is affecting his excrement.
Just saying that I was responding about "fillers" in regards to your comment:I believe BK & LeoRose hit the solution.
Currently, I'm blending 50/50 Carnivora and Acana to feed 3/4 cup/day split into 2 meals. He has stopped eating grass on a consistent basis.
The "filler" that I avoid is the GRAIN fillers.
Exactly this. They can't live off grazing in a wheat field, no. But they can get nutrition from grains that have been processed, which humans have been doing since the dawn of farming, because that processing also allows us to get more nutrients and calories from grains and other plants. Dogs are our coevolutionary partners in many ways.I mean, we've known since 2013 that dogs are approximately 5x better at digesting starch than wolves (study: The genomic signature of dog domestication reveals adaptation to a starch-rich diet). That hardly makes them omnivores imo, but it also means that carbohydrate, even grain, in their diet isn't entirely filler. Of course they can't digest much plant matter whole and unaltered - they probably evolved this ability due to eating our (cooked, mashed, ground, predigested, or otherwise processed) garbage and waste in the early days of dog domestication.