So my sister in law mated her dogs and mama pup (Eevie) had 6 pups. 3 are gone (they are 9 weeks old currently) and doing just fine however the last 3 have had diarrhea and dead worms for about 4 days now. Took samples to vet and they claim the pups have no intestinal issues. The worms have been gone since Saturday-ish but the poop is super mucus-y and runny. Any possible causes? As of Saturday too, my sister in law has been giving them rice with kibble. Change food? Any help is appreciated. Thank you!