hi Robbie, congrats on the upcoming litter!!!
I've been cautioned by my vet and other breeders (although I dont feed it because I cant stand the smell its a childhood thing) not to feed liver to yorkies,causes a vitamin A toxicity.
Change the puppy food you're feeding, many of the pet stores have 1 lbs sample bags, mine love the Royal Canin baby puppy, try that or the puppy! I have had great results with that and Bil-jac.
keep us posted
__________________ Kimberly |