Horrible....however worms are common in puppies and even kittens when they're born. Also coccidia could've been from being simply outside and ingesting poop of a critter outside. To me those 2 things aren't that bad as it can easily be treated. However the hernia is concerning

....and I do hate when breeders get rid of their dogs because they can't breed them anymore...that sounds just like a puppy mill. So sorry for ur loss