that many shot's I would rule out parvo and start looking at whipworms or coccidiosis . I wouldn't hurt to put some corid or sulmet in the water NOW because if it's cocci it doesn't take but a few days to get bad and drag them down . and nemex doesn't do squat for whipworms .
Not familialr with the corid or sulmet so i googled it. Is the corid or sulmet something I can pick up at the feed store? Im not really thinking parvo cuz its never been on my yard before, and these pups havent been around any other strange dogs. As farnas wormer, my adult dogs get a rotation of safeguard, zimectrin gold, and ivermectin. How old before I should start a pup on these wormers?