Mouse cage enrichment

Summary

Key Points

• The presenters met at a UK Institute of Animal Technology congress and have focused on increasing functional space for animals in small laboratory cages. 0:18
• Environmental enrichment is important because it lets animals engage physically, psychologically, and socially, such as climbing, problem-solving, and navigating. 0:43
• Researchers use behavioral observations to assess whether enrichment objects are valuable, measuring exploration time and social interaction. 0:51
• Their informal approach involves identifying specific goals—exploration, problem solving, navigation, climbing, and social interaction—and designing enrichment to meet those goals. 1:58
• Although the enrichment ideas have not yet undergone formal testing, the authors plan future rigorous evaluation. 2:18
• They emphasize that assumptions about what is enriching may be wrong, so systematic observation is essential. 2:39
• In pilot trials, mice readily used a variety of objects, showing preferences for some but generally engaging with all provided activities. 3:14
• Practical considerations include safety for animals and caretakers, ease of monitoring health, cleaning, autoclaving, and storage of enrichment items. 3:36
• The ultimate aim of the work is to enhance positive welfare by providing mice with more choices, control, and complex environments that increase surface functional space. 4:36