Ok,after reading about fecal counts a few times, I wondered what magic these were, turns out its just a vets assistant looking at prepared poop under a microscope and counting the worm eggs, well as I'm always skint, pretty sure I could do that! But how? What? Etc.

Two minutes later on google....
Fias Co Farm/Goat- How to run your own fecal samples
this link is for goats, but surely it's the same principle?