Also, there are commercial places to run horse fecals for you, I'll be one of them, but I am not up and running quite yet.
You can PM me your name and address and I'll send you a kit, but I am still in the developmental stage so I don't have a lot of accuracy data yet. In other words, I am good at it, but I can't totally prove that yet.
You can also use The Horseman's Laboratory, I can recommend him highly, they are very good and come with all sorts of knowledge that I can't offer, Dr. Byrd is a veterinarian and will consult with you about your herd. https://www.horsemenslab.com/
You can PM me your name and address and I'll send you a kit, but I am still in the developmental stage so I don't have a lot of accuracy data yet. In other words, I am good at it, but I can't totally prove that yet.

You can also use The Horseman's Laboratory, I can recommend him highly, they are very good and come with all sorts of knowledge that I can't offer, Dr. Byrd is a veterinarian and will consult with you about your herd. https://www.horsemenslab.com/