A Framework for Using Epidemiology in Animal Welfare Science.

Abstract

The potential advantages of using epidemiology in animal welfare research are substantial and are used with increased frequency. Collaboration between scientists of different fields, with different specific expertise is advantageous in the advancement of science. In this review, a framework to use epidemiology in animal welfare science is established. The different epidemiological study designs and analytical procedures are explored and put in an animal welfare scientific context. It is argued and demonstrated that epidemiology is used with advantage: in the identification of risk factors behind the development of maladaptation and abnormal behaviors; in the introduction of standardized procedures in research allowing comparisons between studies and facilitating the integration for evidence synthesis in systematic reviews and meta-analysis; by allowing animal welfare scientists to analyze complex settings such as farms or zoos. Mathematical modeling can also be used with advantage in risk assessment.