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Black walnut shavings in horse bedding can cause poisoning at what share of the bedding?

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  1. Only if it is 100 percent
  2. Only above 80 percent
  3. As little as 20 percent

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References

  1. Black walnut: a toxic horse bedding, UMN Extension extension.umn.edu/node/14411 Checked 2026-10-10.
  2. Black Walnut, ASPCA Toxic and Non-Toxic Plants www.aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants/black-walnut Checked 2026-10-10.

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