Feed-related selenium poisoning in swine
Publisher DOI
Abstract
The following case report describes a selenium toxicosis in a pig-fattening farm of two finisher groups. The diseased animals partly showed ataxia and paresis or intense lameness in connection with band-like ablation of the epidermis at the coronary band. Some of them suffered from alopecia. Foot-and-mouth disease and swine vesicular disease were excluded by serological tests. Dissection revealed a multifocal bilateral symmetric poliomyelomalacia. Histological changes in the claws ranged from severe cell-decay in the germinative layer to distinctive decay of the stratum corneum. Due to damage of the claw epidermis the corium was partly exposed. Feed analysis revealed 100-fold increased selenium content in the finishing premix from the feed mill and as a result 20- to 60-fold increased selenium values in feed samples from the farm-made finisher mixture. Selenium concentration in the blood of diseased animals was 4- to 10-fold higher than normal values, which confirmed the tentative diagnosis of a selenium toxicosis.
Date Issued
2010
Publication Type
Article
Language(s)
de
Author(s)
Sydler, T. | |
Wolfisberg U., U. | |
Geyer, H. | |
Bürgi, E. |
Journal
Schweizer Archiv für Tierheilkunde
Publisher
Huber
ISSN
0036-7281
Access(Rights)
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