[The changing role of the veterinarian in primary production (demands with respect to diagnostic tests, risk analysis and the need for certification of farms)].

Various new developments in livestock production confront the veterinarian. In addition to Integrated Food Chain Quality Control, certification of farms for animal health status and also for production methods is becoming increasingly important. Certification for veterinary practices is forthcoming. In order to optimize national herd health, quantitative information is needed and certain methods have to be improved. The veterinarian must be able to apply new techniques adequately and to interpret disease- and environment-related data properly. Problem areas are highlighted and different ways of dealing with them are elaborated upon. It is concluded that the veterinarian is strategically positioned to solve these problems, but that suitable, complementary training is needed, as well as new quantitative research.