One of our puppies became poorly last week.He went to his new home on the 7 th September.All puppies were well,stools and urine fine,eating well .When we met up for the second innoculation at my vets,all puppies were well,a few loose stools but we expected that with young pups so my self and 2 other new puppy owners cut out dry food and fed Barf.All were having normal stools within 48 hours.My 2 are still.Good stools and training going well as are 2 of the other pups.However this other puppy began to get more diahorreah and a little blood.The vet diagnosed colitis.The next day he started vomiting and becamr dehydrated so was taken back to the vets and put on a drip overnight.The new owner told me he ate a quantity of ferret food.I presumed this was the cause of the issue.A stool sample was taken at a later date and the results came back tonight as showing the Coccidia parasite.I know this is common but I feel really sorry for the new owners.I guess I will never know were this came from though I know it comes from faeces.Mum didn't mix with my other dogs My own included and only went in a secure garden.Nor did she mix with my 2 cats.The puppies only had contact with mum.Mum and puppies were treated correctly with panacur as per instructions.All area were distinfected twice daily and hygeine was as good as I could possible get- no outside shoes/hand rub etc.Is it likely the issue came from my household,am I to blame or could this have come else where (new owners have ferrets,chucks/ducks and other dogs who have contact since going with them.)Could this be a coincidence,is it that common,has something else  made the puppy poorly?He still has occasional loose stools and is on antibiotics for 3 weeks(though this could cause loose stools) I have advised pro botic yogurt for the tummy.

http://www.marvistavet.com/html/body_coccidia.html

I did look at this site
http://www.vetinfo.com/dogpara.html
But I still feel sorry for the puppy.Though he is well in himself and running around at 100 miles an hour.
I have been looking on other sites and it says that if the pup was with the new owner for 13 days or more the infection probabaly came from there.He was taken to the vet initially on day 15. As my pups are fine (though they had no stress of moving to a new home) I wondered if they will need testing as well as the other pups,though no one has reported any problems,and the vet was happy with all of them at 8 and 11 weeks.

With the multiple livestock the new owner has it is going to be hard to pinpoint where the pup picked up the coccidia, there is also the concern of reinfection when the course of medication is finished.

Luckily he seems well in himself so should be able to fight off any problems.

Is it advisable to let the diarrhoea continue to shed these cysts or stop it to prevent dehydration?

Well I have now spoke to all my new puppy owners and its a relief that none of the other puppies are poorly.All are well and bouncy with normal poos and appetites. As far as I understand,if one puppy has the issue,the whole litter has the issue.I am presuming that the infected pup probabay picked it up from the new owners garden possibly from their ducks/chicknes/ferrets.

chickens often carry a form of it- as do feral pigeons etc.  was a worry to me when I brought my pup home as I keep a lot of poultry - and have had outbreaks in past- so I kept a sharp eye out for it.  in poultry it normally develops 5 days after exposure.  I can't see your pup having picked it up at yours because of time scale.

The reason many people freeze raw meat and thaw before feeding is because of the risk of neospora, a parasite which is refered to as causing coccidosis.

The cases of this condition Ive seen was thought to be caused through this route.

All my barf feed dogs have meat which is frozen first via the butcher).New owners have been advised the same but the affected pup is Kibble fed(fish4dogs) and prescriptio diet from the vets)

You can rule that one out then.