Trouble shooting in colonies of experimental animals
In this paper a guide is offered for the investigation of problems in experimental animal colonies. It can not be an exhaustive list of all the potential areas to check. The process has to evolve as the checks are made and the trouble shooter has to adapt to each individual situation. But it is hoped that by discussing the important sections that are likely to involve most problem solving exercises those working in this field will feel more able to carry out their task.