First-night effect on sleep time in dairy cows

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Standard

First-night effect on sleep time in dairy cows. / Ternman, Emma; Pastell, Matti; Hänninen, Laura; Agenäs, Sigrid; Nielsen, Per P.

I: PLoS ONE, Bind 13, Nr. 4, e0195593, 2018.

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Harvard

Ternman, E, Pastell, M, Hänninen, L, Agenäs, S & Nielsen, PP 2018, 'First-night effect on sleep time in dairy cows', PLoS ONE, bind 13, nr. 4, e0195593. https://doi.org/10.1371/journal.pone.0195593

APA

Ternman, E., Pastell, M., Hänninen, L., Agenäs, S., & Nielsen, P. P. (2018). First-night effect on sleep time in dairy cows. PLoS ONE, 13(4), [e0195593]. https://doi.org/10.1371/journal.pone.0195593

Vancouver

Ternman E, Pastell M, Hänninen L, Agenäs S, Nielsen PP. First-night effect on sleep time in dairy cows. PLoS ONE. 2018;13(4). e0195593. https://doi.org/10.1371/journal.pone.0195593

Author

Ternman, Emma ; Pastell, Matti ; Hänninen, Laura ; Agenäs, Sigrid ; Nielsen, Per P. / First-night effect on sleep time in dairy cows. I: PLoS ONE. 2018 ; Bind 13, Nr. 4.

Bibtex

@article{8628a9b403ad4ab9b350d0a9d81c552d,
title = "First-night effect on sleep time in dairy cows",
abstract = "In human sleep studies, the probability of discomfort from the electrodes and the change in environment usually results in first-night recordings being discarded. Sleep recordings from the first night in human subjects often differ in amount of REM (rapid eye movement) sleep and the overall sleep architecture. This study investigated whether recordings of sleep states in dairy cows also show a first-night effect. Non-invasive electrophysiological recordings were carried out on nine cows of the Swedish Red breed during three consecutive 24-hour periods (recording days 1–3). Overall, cows spent 12.9 ± 1.4 hours awake, 8.2 ± 1 hours ruminating, 57.2 ± 20.3 min drowsing, 44.1 ± 20.2 min in REM sleep and 64.3 ± 38.1 min in NREM (non-rapid eye movement) sleep (mean ± SD) and there were no significant differences between recording days in total duration for any of the sleep and awake states. However, the bouts of REM sleep and rumination were longer, and the awake bouts were shorter, at night time compared to daytime, regardless of recording day. The awake bouts also showed an interaction effect with longer bouts at daytime during day 1 compared to daytime on day 3. Data on sleep and awake states recorded in adult dairy cows during three consecutive 24-h periods showed great variation in sleep time between cows, but total time for each state was not significantly affected by recording day. Further and more detailed studies of how sleep architecture is affected by recording day is necessary to fully comprehend the first-night effect in dairy cows.",
author = "Emma Ternman and Matti Pastell and Laura H{\"a}nninen and Sigrid Agen{\"a}s and Nielsen, {Per P.}",
year = "2018",
doi = "10.1371/journal.pone.0195593",
language = "English",
volume = "13",
journal = "PLoS ONE",
issn = "1932-6203",
publisher = "Public Library of Science",
number = "4",

}

RIS

TY - JOUR

T1 - First-night effect on sleep time in dairy cows

AU - Ternman, Emma

AU - Pastell, Matti

AU - Hänninen, Laura

AU - Agenäs, Sigrid

AU - Nielsen, Per P.

PY - 2018

Y1 - 2018

N2 - In human sleep studies, the probability of discomfort from the electrodes and the change in environment usually results in first-night recordings being discarded. Sleep recordings from the first night in human subjects often differ in amount of REM (rapid eye movement) sleep and the overall sleep architecture. This study investigated whether recordings of sleep states in dairy cows also show a first-night effect. Non-invasive electrophysiological recordings were carried out on nine cows of the Swedish Red breed during three consecutive 24-hour periods (recording days 1–3). Overall, cows spent 12.9 ± 1.4 hours awake, 8.2 ± 1 hours ruminating, 57.2 ± 20.3 min drowsing, 44.1 ± 20.2 min in REM sleep and 64.3 ± 38.1 min in NREM (non-rapid eye movement) sleep (mean ± SD) and there were no significant differences between recording days in total duration for any of the sleep and awake states. However, the bouts of REM sleep and rumination were longer, and the awake bouts were shorter, at night time compared to daytime, regardless of recording day. The awake bouts also showed an interaction effect with longer bouts at daytime during day 1 compared to daytime on day 3. Data on sleep and awake states recorded in adult dairy cows during three consecutive 24-h periods showed great variation in sleep time between cows, but total time for each state was not significantly affected by recording day. Further and more detailed studies of how sleep architecture is affected by recording day is necessary to fully comprehend the first-night effect in dairy cows.

AB - In human sleep studies, the probability of discomfort from the electrodes and the change in environment usually results in first-night recordings being discarded. Sleep recordings from the first night in human subjects often differ in amount of REM (rapid eye movement) sleep and the overall sleep architecture. This study investigated whether recordings of sleep states in dairy cows also show a first-night effect. Non-invasive electrophysiological recordings were carried out on nine cows of the Swedish Red breed during three consecutive 24-hour periods (recording days 1–3). Overall, cows spent 12.9 ± 1.4 hours awake, 8.2 ± 1 hours ruminating, 57.2 ± 20.3 min drowsing, 44.1 ± 20.2 min in REM sleep and 64.3 ± 38.1 min in NREM (non-rapid eye movement) sleep (mean ± SD) and there were no significant differences between recording days in total duration for any of the sleep and awake states. However, the bouts of REM sleep and rumination were longer, and the awake bouts were shorter, at night time compared to daytime, regardless of recording day. The awake bouts also showed an interaction effect with longer bouts at daytime during day 1 compared to daytime on day 3. Data on sleep and awake states recorded in adult dairy cows during three consecutive 24-h periods showed great variation in sleep time between cows, but total time for each state was not significantly affected by recording day. Further and more detailed studies of how sleep architecture is affected by recording day is necessary to fully comprehend the first-night effect in dairy cows.

U2 - 10.1371/journal.pone.0195593

DO - 10.1371/journal.pone.0195593

M3 - Journal article

C2 - 29652904

AN - SCOPUS:85045539662

VL - 13

JO - PLoS ONE

JF - PLoS ONE

SN - 1932-6203

IS - 4

M1 - e0195593

ER -

ID: 202030059