Evidence map›Paper›PMID 31552284›Full record

ArticleFrontiers in veterinary science2019

Evaluation of Brain Death in Laying Hens During On-Farm Killing by Cervical Dislocation Methods or Pentobarbital Sodium Injection.

Elein Hernandez, Fiona James, Stephanie Torrey, Tina Widowski, Karen Schwean-Lardner, Gabrielle Monteith, Patricia V Turner

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Frontiers in veterinary science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

5 citing papers in PubMed, 24 citations in OpenAlex.

  1. Epidemiological Investigation and Characterization of Avian Influenza AAnimals : an open access journal from MDPI · 2025
    Article
  2. The use of high expansion foam for stunning and killing pigs and poultry.EFSA journal. European Food Safety Authority · 2024
    Article
  3. Article
  4. Pre-Slaughter Stunning of Farmed Atlantic Halibut in COAnimals : an open access journal from MDPI · 2023
    Article
  5. Evaluation of intravenous T-61 as a euthanasia method for birds.The Canadian veterinary journal = La revue veterinaire canadienne · 2021
    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

7 authors at 2 institutions in 1 country.

Elein HernandezDepartment of Pathobiology, University of Guelph, Guelph, ON, Canada.
Fiona JamesDepartment of Clinical Studies, University of Guelph, Guelph, ON, Canada.
Stephanie TorreyDepartment of Animal Biosciences, University of Guelph, Guelph, ON, Canada.
Tina WidowskiDepartment of Animal Biosciences, University of Guelph, Guelph, ON, Canada.
Karen Schwean-LardnerCollege of Agricultural and Bioresources, University of Saskatchewan, Saskatoon, SK, Canada.
Gabrielle MonteithDepartment of Clinical Studies, University of Guelph, Guelph, ON, Canada.
Patricia V TurnerDepartment of Pathobiology, University of Guelph, Guelph, ON, Canada.
University of Guelph · CAUniversity of Saskatchewan · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigated changes in the electroencephalograph (EEG) power spectrum as well as physiological and behavioral responses to on-farm killing via mechanical cervical dislocation (MCD), manual cervical dislocation (CD) or intravenous pentobarbital sodium administration in lightly anesthetized laying hens, to evaluate the welfare impact of each method. A mixed group of 44 white Leghorn and Smoky Joe laying hens (60 weeks-old) were anesthetized with isoflurane in oxygen and maintained at 1.5-2% isoflurane/O

Indexed as

animal welfarecervical dislocationchickenEEGeuthanasiapentobarbital sodiumpoultry

Identifiers

PMID31552284
PMCPMC6733910
OpenAlexW2969571845

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.