What are the most prevalent welfare issues for pet small mammals? (2025)

Fenton, L., Benato, L., Mancinelli, E. et al.

Abstract

The welfare of pet small mammals is an understudied, but growing research topic in the UK and Europe. We surveyed European veterinary experts who each rated severity and prevalence of a large number of issues in the eight most common species. Overall, 46 responses were obtained. We calculated the mean expert's ratings for severity and prevalence of each issue, which were multiplied together to create an overall impact score. We then ranked issues from most to least impactful for each species. The most impactful welfare issue was perceived to be small housing for all the species apart from the rat where the main concern was respiratory disease. Where comparing veterinary surgeons and veterinary nurses, rating differed significantly on numerous issues. Veterinary nurses generally rated welfare issues as more prevalent than veterinary surgeons. UK respondents also rated numerous issues as more severe and prevalent than non-UK respondents. Better guidance on, and increased availability of, affordable large housing is likely to greatly improve small mammal welfare.