
Had this issue with Casie's litter. First tried putting Wellness canned puppy in with the dry food (soaked in water). Now the two litters are together, so they all eat really well. Ended up having to be strong, and locking both moms right away from them. Yes, it was noisey (still sometimes is) but they are eating the food.
Hope you can get your pups to not want mommy so much, and eat the food you want them to eat.