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Treating Parasites in Small Ruminants

By   /  April 17, 2017  /  4 Comments

It turns out, treating every animal in the herd 2 or more times a year, as many of us were taught, creates more problems than it solves. Here’s what we should do instead.

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Click to download this for free from the ATTRA website. As a novice goatherd back in 1997, I was tau
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About the author

Publisher, Editor and Author

Kathy worked with the Bureau of Land Management for 12 years before founding Livestock for Landscapes in 2004. Her twelve years at the agency allowed her to pursue her goal of helping communities find ways to live profitably AND sustainably in their environment. She has been researching and working with livestock as a land management tool for over a decade. When she's not helping farmers, ranchers and land managers on-site, she writes articles, and books, and edits videos to help others turn their livestock into landscape managers.


  1. John Marble says:

    In my admittedly modest experience with goats I have reached the conclusion that the key to avoiding parasite problems is to keep their noses as far as possible from the ground. This means grazing high residual on grass, or better yet, browsing on brush and trees. Grazing guru Walt Davis advises that if you don’t have a problem with brush you probably shouldn’t be running goats. I think he’s right, both ecologically and economically.

  2. Pat Guptill says:

    elemental sulfur is natural and found in green grass. Feeding it to animals will take care of the internal and external parisits. You will not end up with any drug resistant parisites. It is nature way of taking car of a problem.

    • Geralyn Devereaux says:

      ~~By fasting your animals overnight you can increase medication effectiveness.~~ Oh there ya go! In our reawakened era of holistic solutions fasting is going to be found a powerful assist to good health. Dry fasting and intermittent fasting are the top tools to slimming and even removing toxic situations in us farmers as well!

    • Kathy Voth says:

      Hi Pat,

      I had never heard of elemental sulfur being used for internal parasites in small ruminants before, so I checked in with Linda Coffey at ATTRA/NCAT. Linda and a group of veterinarians and experts in small ruminants were the ones who put together the publications on managing and treating parasites that we’ve been highlighting. They provided some insights and some concerns and I’ve summarized them here.

      The published literature shows no evidence that elemental sulfur has been tested for use against internal parasites. A lime-sulfur dip is used against external parasites, but even so, the sulfur contained in green, growing grass is not sufficient to prevent external parasite infection so grazing it won’t prevent internal or external parasites. There are also potential problems with using too much elemental sulfur in an animal’s diet. Sulfur can tie up minerals in the animal’s system, causing other health problems. This could be what is behind a Montana ranch account from the 1800s showing sulfur use killed just about every ewe on the place. It also might explain why one of the group of experts Linda works with lost two 9-month old lambs by feeding hay that had been treated with elemental sulfur to prevent mice from chewing on the twines.

      Everyone agreed that it would be nice if there was an easy solution to the problem of parasites, there just isn’t. That’s why we’re focusing on the integrated approaches described here.

      If you have other information about elemental sulfur that we may not have taken into account, we would love to hear it.


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