Evidence map›Paper›PMID 32042065›Full record

ArticleScientific reports2020

The effect of group size, age and handling frequency on inter-male aggression in CD 1 mice.

Paulin Jirkof, Natalie Bratcher, Letty Medina, Donna Strasburg, Paige Ebert, Brianna N Gaskill

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.2field-weighted citation impact, top 7% of its field
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

23 citing papers in PubMed, 38 citations in OpenAlex.

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  14. Identification of Rodent Husbandry Refinement Opportunities through Benchmarking and Collaboration.Journal of the American Association for Laboratory Animal Science : JAALAS · 2022
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  20. Postweaning Grouping as a Strategy to Reduce Singly Housed Male Mice.Animals : an open access journal from MDPI · 2020
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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

6 authors at 4 institutions in 2 countries.

Paulin JirkofDivision of Surgical Research, University Hospital Zurich, Zurich, Switzerland. paulin.jirkof@usz.ch.
Natalie BratcherOffice of Animal Welfare, AbbVie, North Chicago, USA.
Letty MedinaOffice of Animal Welfare, AbbVie, North Chicago, USA.
Donna StrasburgComparative Medicine, AbbVie, North Chicago, USA.
Paige EbertComparative Medicine, AbbVie, North Chicago, USA.
Brianna N GaskillDepartment of Animal Science, Purdue University, West Lafayette, USA.
AbbVie (United States) · USAnimal Welfare Institute · USPurdue University West Lafayette · USUniversity Hospital of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aggression in male mice often leads to injury and death, making social housing difficult. We tested whether (1) small group size, (2) early age of allocation to a group decreases aggression and 3) manipulation increases aggression in male mice. A 14wk study was performed to assess the following conditions in male CD-1/ICR mice: group size (1, 2, or 3), age at grouping (5 or 7wks), and manipulation (daily scruffing or minimal weekly handling). Wounds, body weights, food consumption, nest scores, sucrose consumption, fecal corticosterone and blood for hematology were collected. At the end of the study, mice were euthanized and pelted to assess wounding with the pelt aggression lesion scale (PALS). No signs of acute or chronic stress were observed in any of the groups. Trio housed mice showed less bite wounds than pair housed mice. In general, mice in larger groups ate less but weighed more. Individually housed mice, however, had high nest scores, low body weights, and increased sucrose and food consumption. These results suggest that even when nesting material is provided, individual mice may be experiencing thermal stress. Based on this data, CD-1 mice can successfully be housed for up to 14wks and groups of 3 may be the best for reducing even minor levels of aggression (i.e. wounding).

Indexed as

AggressionHousing, AnimalAge FactorsAnimalsCrowdingFeeding BehaviorMaleMiceMice, Inbred ICRNesting BehaviorStress, PhysiologicalStress, Psychological

Identifiers

PMID32042065
PMCPMC7010790
OpenAlexW3004978769

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.