Southern by choice
Herd Master
They can be.Um, they have worms already?
Most that just have a litter here and there are unfamiliar with the protocol.
For many that are actual "breeders", the dam is dewormed with a low dose every day for 20 days prior to whelp.
This gives the pups a great start, although the pups still need to be on a deworming program.
Great Job Secouno- many start deworming WAY to late on their pups. Some don't even give the first dose til 6 weeks!