Evidence map›Paper›PMID 36611751›Full record

ReviewAnimals : an open access journal from MDPI2022

Aggression in Group-Housed Male Mice: A Systematic Review.

Elin M Weber, Josefina Zidar, Birgit Ewaldsson, Kaisa Askevik, Eva Udén, Emma Svensk, Elin Törnqvist

Abstract readReview
In one paragraph

Review in Animals : an open access journal from MDPI, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. On the importance of including both sexes in animal studies - insights from home-cage monitoring.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Social Housing of Postoperative Animals to Support Animal Welfare.Journal of the American Association for Laboratory Animal Science : JAALAS · 2026
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Elin M WeberDepartment of Animal Environment and Health, Swedish University of Agricultural Sciences, 532 23 Skara, Sweden.
Josefina ZidarDepartment of Animal Environment and Health, Swedish University of Agricultural Sciences, 750 07 Uppsala, Sweden.ORCID 0000-0002-1622-5752
Birgit EwaldssonDepartment of Animal Science and Technology, AstraZeneca, 431 83 Mölndal, Sweden.
Kaisa AskevikSwedish 3Rs Center, Swedish Board of Agriculture, 553 29 Jönköping, Sweden.
Eva UdénSwedish 3Rs Center, Swedish Board of Agriculture, 553 29 Jönköping, Sweden.
Emma SvenskSwedish 3Rs Center, Swedish Board of Agriculture, 553 29 Jönköping, Sweden.
Elin TörnqvistSwedish National Committee for the Protection of Animals Used for Scientific Purposes, Swedish Board of Agriculture, 553 29 Jönköping, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aggression among group-housed male mice is a major animal welfare concern often observed at animal facilities. Studies designed to understand the causes of male mice aggression have used different methodological approaches and have been heterogeneous, using different strains, environmental enrichments, housing conditions, group formations and durations. By conducting a systematic literature review based on 198 observed conclusions from 90 articles, we showed that the methodological approach used to study aggression was relevant for the outcome and suggested that home cage observations were better when studying home cage aggression than tests provoking aggression outside the home cage. The study further revealed that aggression is a complex problem; one solution will not be appropriate for all animal facilities and all research projects. Recommendations were provided on promising tools to minimize aggression, based on the results, which included what type of environmental enrichments could be appropriate and which strains of male mice were less likely to be aggressive.

Indexed as

aggressionanimal welfareenvironmental enrichmentgroup formationgroup housinghousing conditionsmale miceresident-intrudersocial dominancewound scoring

Identifiers

PMID36611751
PMCPMC9817818

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.