Impact of observation duration on behavioural pain assessment and intra-observer reliability in castrated piglets: A pilot study.

Rubia M Tomacheuski, Pedro He Trindade, Victoria R Merenda, Magdiel Lopez-Soriano, Monique Pairis-Garcia

Abstract read

In one paragraph

Article 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. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Rubia M TomacheuskiTranslational Research in Pain, Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.ORCID https://orcid.org/0000-0002-7967-0124

Pedro He TrindadeDepartment of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA.

Victoria R MerendaDepartment of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.

Magdiel Lopez-SorianoDepartment of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.

Monique Pairis-GarciaDepartment of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pain monitoring and diagnosis are crucial in seeking to improve animal welfare. This pilot study aimed to investigate the impact of long hours observation on pain assessment and the intra-observer reliability in piglets using video recording. A total of ten piglets, five from the control group (sham castration; pain-free) and five from the pain group (surgical castration; pain-state), were video-recorded immediately post-castration. The videos were randomised and assessed by an experienced observer using the Unesp-Botucatu Pig Composite Acute Pain Scale (UPAPS). The same ten videos were watched at three different times (trial initiation, half-way point, trial termination) with a four-week interval between them. During the four-week interval periods, the observer watched an additional 360 videos from another study to simulate long observation periods. For the pain group, no differences were found in the

Indexed as

animal welfarecastrationfarm animalpain measurementprocedural painswine

Identifiers

PMID40337298

DOI10.1017/awf.2025.22

PMCPMC12056411

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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.