Could measuring ultrasonic vocalisations help refine rat welfare?

Listening to rats' ultrasonic vocalisations could help provide a method to measure the impact of potential refinements on rat welfare without needing to remove the animals from their home cage.
Source: University of Bristol news - Category: Universities & Medical Training Tags: Grants and Awards, Research; Faculty of Life Sciences, Faculty of Life Sciences, School of Physiology, Pharmacology and Neuroscience; Press Release Source Type: news