Evidence map›Paper›PMID 34035392›Full record

ArticleScientific reports2021

Machine learning prediction of sleep stages in dairy cows from heart rate and muscle activity measures.

Laura B Hunter, Abdul Baten, Marie J Haskell, Fritha M Langford, Cheryl O'Connor, James R Webster, Kevin Stafford

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

10 citing papers in PubMed, 20 citations in OpenAlex.

  1. Seasonal variations in the polysomnographic sleep/wake cycle and activity/rest pattern in the dromedary camel (Camelus dromedarius).Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2026
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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 3 institutions in 3 countries.

Laura B HunterAnimal Behaviour and Welfare, AgResearch Ltd., Ruakura Research Centre, Hamilton, Waikato, New Zealand. laura.hunter@agresearch.co.nz.
Abdul BatenBioinformatics and Statistics, AgResearch Ltd., Grasslands Research Centre, Palmerston North, Manawatu, New Zealand.
Marie J HaskellAnimal Behaviour and Welfare, Scotland's Rural College (SRUC), Edinburgh, Scotland, UK.
Fritha M LangfordAnimal Behaviour and Welfare, Scotland's Rural College (SRUC), Edinburgh, Scotland, UK.
Cheryl O'ConnorAnimal Behaviour and Welfare, AgResearch Ltd., Ruakura Research Centre, Hamilton, Waikato, New Zealand.
James R WebsterAnimal Behaviour and Welfare, AgResearch Ltd., Ruakura Research Centre, Hamilton, Waikato, New Zealand.
Kevin StaffordDepartment of Animal Science, School of Agriculture and Environment, Massey University, Palmerston North, Manawatu, New Zealand.
AgResearch · NZScotland's Rural College · GBMassey University · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sleep is important for cow health and shows promise as a tool for assessing welfare, but methods to accurately distinguish between important sleep stages are difficult and impractical to use with cattle in typical farm environments. The objective of this study was to determine if data from more easily applied non-invasive devices assessing neck muscle activity and heart rate (HR) alone could be used to differentiate between sleep stages. We developed, trained, and compared two machine learning models using neural networks and random forest algorithms to predict sleep stages from 15 variables (features) of the muscle activity and HR data collected from 12 cows in two environments. Using k-fold cross validation we compared the success of the models to the gold standard, Polysomnography (PSG). Overall, both models learned from the data and were able to accurately predict sleep stages from HR and muscle activity alone with classification accuracy in the range of similar human models. Further research is required to validate the models with a larger sample size, but the proposed methodology appears to give an accurate representation of sleep stages in cattle and could consequentially enable future sleep research into conditions affecting cow sleep and welfare.

Indexed as

Heart RateMachine LearningModels, BiologicalSleep StagesAnimalsCattleMyocardiumNeural Networks, ComputerPolysomnographyROC Curve

Identifiers

PMID34035392
PMCPMC8149724
OpenAlexW3164609950

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.