I'm leaning more to coccidiosis as worms take longer to infest chicks (it takes time to grow from cyst to larvae to adult). If that is a sample from an older bird, then worms is a thought.
However, coccidiosis also takes time to grow from cyst to adult. 2 1/2 weeks really isn't enough time for that either. 4 weeks is though. It takes about 4 weeks for that cycle.
It could be stressed intestinal shedding from the younger ones. What is your heat temp like? Crowding?
I would take a fresh fecal sample of the affected birds. Many vets will do fecal floats very cheaply especially if you are there for other pets.
Don't worry. The chicks and puppies won't share parasites. Almost all parasites are species specific.
Let us know how it goes.
LofMc
However, coccidiosis also takes time to grow from cyst to adult. 2 1/2 weeks really isn't enough time for that either. 4 weeks is though. It takes about 4 weeks for that cycle.
It could be stressed intestinal shedding from the younger ones. What is your heat temp like? Crowding?
I would take a fresh fecal sample of the affected birds. Many vets will do fecal floats very cheaply especially if you are there for other pets.
Don't worry. The chicks and puppies won't share parasites. Almost all parasites are species specific.
Let us know how it goes.
LofMc