The Incidence of <i>Clostridium botulinum</i> in Farmed Trout Raised in Great Britain

Abstract

The incidence of Clostridium botulinum in farmed trout has been studied. Seventeen farms were visited; 5 in Scotland, 2 in Wales and 10 in England. Fourteen hundred trout were examined and the incidence of Cl. botulinum in whole fish and viscera was 9·4 and 11·0%, respectively. The organism was demonstrated in 13 of the 17 farms examined ranging from 2·9 to 100%. Four visits to one farm showed only a slight variation in the incidence of the organism.