Evidence map›Paper›PMID 40529167›Full record

ReviewAnimal welfare (South Mimms, England)2025

A systematic review and meta-analysis of physical environmental enrichment to improve animal welfare-related outcomes in indoor cattle.

Ganimet Unsal, Kate F Johnson, Sokratis Stergiadis, Richard Bennett, Zoe E Barker

Abstract readReview
In one paragraph

Review in Animal welfare (South Mimms, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
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

5 authors.

Ganimet UnsalSchool of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UK.ORCID https://orcid.org/0000-0001-8226-295X
Kate F JohnsonSchool of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UK.ORCID https://orcid.org/0000-0002-5088-1163
Sokratis StergiadisSchool of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UK.ORCID https://orcid.org/0000-0002-7293-182X
Richard BennettSchool of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UK.ORCID https://orcid.org/0000-0003-3226-8370
Zoe E BarkerSchool of Agriculture, Policy and Development, University of Reading, Reading RG6 6EU, UK.ORCID https://orcid.org/0000-0002-8512-0831

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This systematic review aims to evaluate the effectiveness of various physical environmental enrichment items such as brushes, ropes, teats, chains, balls, cowhides/blocks, at improving the welfare of indoor-housed calves, heifers, and cattle. This review of 33 peer-reviewed papers and one industry report evaluated different welfare-related outcomes following physical environmental enrichment, including feed intake, lying time, play and exploratory behaviour, aggression, stereotypic behaviour and cross-sucking behaviour. The results of the meta-analysis revealed that calves and heifers enrolled in experimental studies using enrichment items had significantly improved growth rates, and increased locomotor play, but the overall reduction in cross-sucking behaviour was small and non-significant. The effect of enrichment on feed intake, aggression/stereotypic behaviour, play behaviour, cleanliness score contrasted between studies, with some reporting improvements while others showed no effect of environmental enrichment in these parameters. The risk of bias assessment revealed limitations in researcher blinding, sequence generation, and allocation concealment across the literature assessing the effectiveness of environmental enrichment on animal welfare. Overall, this review underscores the significant positive impact of physical enrichment on the welfare and behaviour of indoor-housed cattle, while highlighting the need for further research to optimise enrichment strategies across different cattle age groups and housing conditions.

Indexed as

animal welfarecalvesdairy cowsenvironmental enrichmentindoor housingphysical enrichmentwell-being

Identifiers

PMID40529167
PMCPMC12171782

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.