Colloidal silver nanoparticles induced detached sperm heads in a dog

  • Fabio Pinaffi Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO, USA
  • Morgan Flanders Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO, USA
Keywords: Dog, fertility, sperm, silver nanoparticles

Abstract

We describe a sperm abnormality (detached heads) in a dog treated with a topical (spray) medication containing colloidal silver nanoparticles (AgNP). However, sperm morphology and fertility recovered 5 months after withdrawal of treatment. To our knowledge, this is the first report of an association between AgNPs and abnormal canine sperm.

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Published
2026-08-12
How to Cite
Pinaffi , F., & Flanders , M. (2026). Colloidal silver nanoparticles induced detached sperm heads in a dog. Clinical Theriogenology, 18. https://doi.org/10.58292/CT.v18.14376
Section
Case Reports