Originally Posted by waddles99
Interesting. It made sense to me at the time. I guess people can't be right 100% of the time.
Elimination of all parasitic worms is basically impossible. What is done is the levels are managed. Rotational grazing is a key step, keeping goats on fresh, tall pasture that isn't full of manure, reducing egg ingestion. You've likely seen something called FAMACHA? That is a program used to monitor herd health based on eyelid color, basically monitoring for parasites that cause anemia.
Fecal samples can determine the type of parasite and the numbers. Knowing what it is tells you what will kill it if an animal does have a high load. It is a cheap method of keeping an eye on your herd's health. Doing a fecal after worming tells you if the treatment was a success, or if you need to try another treatment (due to parasite resistance to the first drug).
Goat Vet Corner on facebook is full of up to date veterinarians that answer questions for goat keepers. Only veterinarians are allowed to answer questions, too.