Are you boosting your bitches before they whelp? You really shouldn't loose a pup that young unless the bitch wasn't vaccinated properly. I'm talking 5 weeks old or less.
didnt on the ones we lost because this just hit us. We vaccinated my gabby gyp thats at the house im gunna give my walker dog two shots when she gets home from the stud dog. 2-4 weeks apart. Then shes not staying at the house due to wanting a pup out of her that bad. These will be some jam up hog dogs!