I have used a similar service here in the UK for many years for my horses and in the last few years they started offering the poultry service as well and I have bought a sample pack for them but have yet to use it. For poultry you can take samples from up to 10 chickens I believe and combine them in the same pot for a general flock screening or do individual samples. The cost is an awful lot cheaper here at just under £10 for the poultry kit which includes the sample pot, labels and paid first class return postage for the sample... so you don't need to put stamps on. I usually get next day results for my horse samples. It says they check for coccidia, round worms and another parasite, which I can't remember off the top of my head, for the poultry sample, so excellent value in my opinion. They are also happy for you to ring them if you have any particular queries and they have given me worming advice over the phone in the past. I can't rate the business highly enough.... fast, professional and friendly.... if anyone in the UK is reading this, they are called Westgate Labs.