The incidence of Clostridium botulinum in Danish trout farms: II. Measures to reduce contamination of the fish

Abstract
Summary: A number of experiments have been carried out to develop methods for the reduction of the contamination of farmed trout by the food poisoning organism Clostridium botulinum.Starvation studies of fish gave variable results. When carried out under hygienic conditions in artificial containers and a clean water supply the contamination was reduced. Gutting of fish, either by hand or machine, always reduced the contamination to a low level.Quick liming effectively reduced the contamination of pond bottoms and may be useful as a control measure against Clostridium botulinum.