Peer-reviewed veterinary case report
Naturally occurring selenosis in Wyoming.
- Journal:
- Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc
- Year:
- 1993
- Authors:
- Raisbeck, M F et al.
- Affiliation:
- Department of Veterinary Science
- Species:
- horse
Plain-English summary
In Wyoming, a review of veterinary records from 1947 to 1987 found no confirmed cases of selenosis, which is a condition caused by too much selenium, but older reports mentioned thousands of animal deaths linked to selenium each year. Starting in August 1988, veterinarians and livestock producers were asked to report any suspected cases of selenosis or selenium deficiency. By August 1991, four cases of naturally occurring selenosis were confirmed, all in horses, with symptoms mainly showing damage to the skin and hooves, like hoof lesions and loss of mane and tail. There were no signs of nervous system issues in these cases, and the selenium sources were identified as native grassland and hay. The treatment and management of these cases were not detailed, but the confirmation of these cases indicates that selenosis can occur in horses in this region.
Abstract
A review of Wyoming State Veterinary Laboratory records for 1947-1987 revealed no substantiated cases of naturally occurring selenosis. However, older reports attributed thousands of animal deaths to selenium each year in this area. Beginning in August 1988, cases of suspected selenosis and selenium deficiency were solicited from veterinarians and producers by announcements in various statewide livestock publications. As of August 1991, 4 cases (all horses) of naturally occurring selenosis have been confirmed. Clinical signs were most often referable to epithelial damage, e.g., hoof lesions and loss of mane and tail. None involved neurologic signs. Sources of selenium included native range and grass hay.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/8466987/