Evidence map›Paper›PMID 41998022›Full record

ArticleScientific reports2026

Nociceptive thresholds in broiler chickens are modulated by lameness of their progenitors and sex category.

Marco Aurélio Pereira de Almeida, Cihan Çakmakçi, Victor Abreu de Lima, Ana Carolina Dierings Montechese, Camila Squarzoni Dale, Adroaldo José Zanella

Abstract read
In one paragraph

Article in Scientific reports, 2026. 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

6 authors.

Marco Aurélio Pereira de AlmeidaCenter for Comparative Studies in Sustainability, Health and Welfare, Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine and Animal Science, University of São Paulo, Campus Fernando Costa, Av. Duque de Caxias Norte, 225 Caixa Postal 23, Pirassununga, CEP 13635‑900, SP, Brazil. marcoapdealmeida@usp.br.
Cihan ÇakmakçiAnimal Biotechnology Section, Department of Agricultural Biotechnology, Faculty of Agriculture, Van Yüzüncü Yıl University, Van, 65080, Turkey.
Victor Abreu de LimaBEA-Consultoria, Consultancy and Training in Animal Welfare Science, Sacramento, CEP 38190-000, MG, Brazil.
Ana Carolina Dierings MontecheseCenter for Comparative Studies in Sustainability, Health and Welfare, Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine and Animal Science, University of São Paulo, Campus Fernando Costa, Av. Duque de Caxias Norte, 225 Caixa Postal 23, Pirassununga, CEP 13635‑900, SP, Brazil.
Camila Squarzoni DaleFaculty of Medicine, Department of Surgery, University of São Paulo, São Paulo, Brazil.
Adroaldo José ZanellaCenter for Comparative Studies in Sustainability, Health and Welfare, Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine and Animal Science, University of São Paulo, Campus Fernando Costa, Av. Duque de Caxias Norte, 225 Caixa Postal 23, Pirassununga, CEP 13635‑900, SP, Brazil. adroaldo.zanella@usp.br.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There are increasing concerns about fast-growing broiler’s welfare. The impact of lameness issues of parental hens and cockerels to their immediate broiler’s offspring remains underexplored and was an objective of this study. Additionally, it was added the novelty to investigate nociceptive responses of these broilers in the field. The study was conducted in commercial settings in Brazil including a reproduction farm, an industrial-scale hatchery, and a rearing farm. Parental-birds were gait scored as lame(C) and non-lame(S) and combined into four mating groups: SS, SC, CS, and CC. 371 adult broilers, immediate progeny of these parents, evaluated for lameness and nociceptive thresholds. Although no treatment effects were observed, when comparing sexes, regardless parental conditions, male broilers exhibited higher 0–5 gait scores than females (males 1.74, females 1.20). Males had also higher nociceptive thresholds and this reduced sensitivity was more pronounced in their left legs. The sex-based analysis indicated that male broilers descended from lame females mated with non-lame males, presented higher nociceptive thresholds than those whose parents were both non-lame birds. These findings may guide deeper investigation into phenotypic lameness resilience, nociceptive thresholds, pain processing, and chronic pain-induced analgesia in industrial poultry.

Indexed as

ChickensLameness, AnimalNociceptionPain ThresholdPoultry DiseasesAnimalsBrazilFemaleGaitMaleSex FactorsBroilersChickensLamenessNociceptionWelfare

Identifiers

PMID41998022
PMCPMC13090397

What Socratic holds

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LicenceCC BY-NC-ND
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Registered trials

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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 Socratic graph.