Some dogs who are sensitive to chicken (or other ingredient) and even to certain levels of fat (high fat diet or even marrow from a bone) can have softer than normal stools. If you don’t think chicken or fat is an issue since they have been on raw for a while, try giving them a RMB to eat a couple times a week like a chicken wing or a neck. The higher bone content usually firms up the stool. If you want to try non-chicken, then a duck neck split between them or a pork baby back rib (just one) should do. Generally speaking the amount of bone in a raw diet should be 10% but some do better on a little more. A whole chicken is around 30% bone. I’ve made a batch of raw food with 10% and 30% and none of the dogs had an issue and all their stools were firm. I did notice when they ate a RMB or a higher amount of bone from ground raw that their stools were firmer and more like large pebbles. Or you could try feeding another protein like beef incase they have developed a chicken sensitivity over time. My dogs have been eating raw for about 3 years and haven’t had any soft stool issues, not even after consuming the marrow from a marrow bone. For fiber, I’ve used pumpkin but then went on to use ground psyllium or chia seeds.
