Evidence map›Paper›PMID 41681366›Full record

ArticleAnimals : an open access journal from MDPI2026

Olfactory Enrichment of Captive Pygmy Hippopotamuses with Applied Machine Learning.

Jonas Nielsen, Frej Gammelgård, Silje Marquardsen Lund, Anja Sofie Banasik Præstekær, Astrid Vinterberg Frandsen, Camilla Strandqvist, Mikkel Haugaard Nielsen, Rasmus Nikolajgaard Olsen, Sussie Pagh, Thea Loumand Faddersbøll and 1 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Animals : an open access journal from MDPI, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

11 authors.

Jonas NielsenDepartment of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.ORCID 0009-0003-3081-5999
Frej GammelgårdDepartment of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.ORCID 0009-0001-8577-5635
Silje Marquardsen LundDepartment of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.ORCID 0009-0006-7282-8298
Anja Sofie Banasik PræstekærDepartment of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.ORCID 0009-0004-0238-2871
Astrid Vinterberg FrandsenDepartment of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.
Camilla StrandqvistDepartment of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.
Mikkel Haugaard NielsenDepartment of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.ORCID 0009-0001-1852-545X
Rasmus Nikolajgaard OlsenDepartment of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.ORCID 0009-0001-2082-9970
Sussie PaghDepartment of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.ORCID 0000-0002-1574-3638
Thea Loumand FaddersbøllAalborg Zoo, Mølleparkvej 63, 9000 Aalborg, Denmark.ORCID 0009-0007-2125-1481
Cino PertoldiDepartment of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, 9220 Aalborg, Denmark.ORCID 0000-0002-4644-8981

Funding

Aalborg Zoo Conservation Foundation 2024-06 and 2025-02
6 · The paper itself

Abstract

The pygmy hippopotamus (

Indexed as

animal welfareChoeropsis liberiensisinter-observer variabilityLabGymmachine learningolfactory enrichmentpose estimationSLEAP

Identifiers

PMID41681366
PMCPMC12896667

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.