receipe for more sleep.
to keep our puppies clean when they are about 5-6 weeks. we put up a childrens pool, and put pine chips in the pool, and an ex pen around the pool. when the puppies go to the bathroom, it does not make a big mess, and it keeps the puppies cleaner, and you can sleep.
the next morning, we change the pool out, and use a fresh clean pool, and pine chips, and change it out again when needed. you can get the pools at walmart and k-mart in the summer time.
at the same time, the puppies get a new environment, coccodia is in the earth, i believe it takes very HOT water to kill it.
this can give you time to clean the area where the puppies, and mom have been living, and rince with boiling hot water,
My guess is it was Coccidia as the Ponazuril firmed some of the stool.
At this point, I'd give Peptobismol at .5ml per pound of pup weight to firm stool. I'd give it before bedtime and again 12 hours later. Pups' intestinal flora has taken a beating. Even excess probiotics add to the diarrhea. Pepto will firm stool until all is in balance again.
I've dealt with this situation too many times. My pups go outside for socialization periods at 5 weeks. Coccidia is in bird poop, rabbit waste, etc. It rarely shows on stool tests. I now give DiMethox (liquid Albon) in pups' water at 5 weeks for a week, then again at 7 weeks old for a week. I've never had the issue since starting the DiMethox.(Dosing on this forum and online.)
Merck manual lists various species of coccidia protozoans. Some can infect dogs and cats, with rodents as intermediate hosts, apparently. If the rodents are intermediate hosts, can't their scat pass it to the dogs? How, if not by poop, do rodents pass it to carnivores--in muscle? or in intestines, which of course have poop? I wonder if OP also has cats on the property, her own or ferals?
http://www.merckmanuals.com/vet/digestive_system/coccidiosis/coccidiosis_of_cats_and_dogs.html
"Hammondia has an obligatory 2-host life cycle with cats or dogs as final hosts and rodents or ruminants as intermediate hosts, respectively. Hammondia oocysts are indistinguishable from those of Toxoplasma and Besnoitia but are nonpathogenic in either host. (see also Besnoitiosis, see Sarcocystosis, and see Toxoplasmosis.)
"The most common coccidia of cats and dogs are Isospora. Some Isospora spp of cats and dogs can facultatively infect other mammals and produce in various organs an encysted form that is infective for the cat or dog. Two species infect cats: I felis and I rivolta; both can be identified easily by oocyst size and shape. Almost every cat eventually becomes infected with I felis. Four species infect dogs: I canis, I ohioensis, I burrowsi, and I neorivolta. In dogs, only I canis can be identified by the oocyst structure; the other 3 Isospora overlap in dimensions and can be differentiated only by endogenous developmental characteristics."
Note that insects are also listed as needing control to control the protozoan. Flies are nasty!