puppies I have bred 35 yrs...I never worm a Yorkie until I get a stool sample. I kept all adults worm free and the environment..inside and out parasite free.
wait until 6 weeks and get a stool sample...if you are concerned you might be able to get on at 4 weeks. One or two is enough..if one has worms, they all need worming.
It might be wise to worm large breeds often, but it is a sure way to lose/sicken/weaken/ a litter worming so young and so often...but this is why we all can get along here..we all can agree to disagree..
Best wishes |