Practical intervention strategies for Campylobacter

Abstract

Campylobacter organisms arc present in the environment of the farm and it is accepted that the chance of infection transferring to chickens is very high. Sources of infection may include any of the standard requirements for poultry such as feed, water and litter. Any form of human intervention as a result of routine animal husbandry requirements may also introduce infection. It has been shown that on some farms it is possible to delay infection by various improvements to bio-security arrangements. The use of dedicated wellington boots for each poultry house and the regular use of foot dips were found to be important factors. The daily use of water sanitiser was also important in delaying the onset of infection. The efficiency of cleaning and disinfection and the construction of the buildings were less significant factors. If flocks were thinned, which involves entry by catching crews and equipment, the risk of infection was dramatically increased. After 42 d of age, the likelihood of infection was also much greater. The effectiveness of these intervention procedures applied in one integrated poultry company are described. Generally, it was felt that even the most stringent bio-security measures applied conscientiously would not be able to prevent infection occurring. Once infection has entered the house, all birds become Campylobacter carriers very quickly. A pen trial was set up to investigate this and the results are described.