Dynamics of somatic cell count (SCC) and differential SCC during and following intramammary infections

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Dynamics of somatic cell count (SCC) and differential SCC during and following intramammary infections. / Kirkeby, Carsten; Schwarz, Daniel; Denwood, Matt; Farre, Michael; Nielsen, Søren S; Gussmann, Maya; Toft, Nils; Halasa, Tariq.

I: Journal of Dairy Science, Bind 104, 03.2021, s. 3427-3438.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Harvard

Kirkeby, C, Schwarz, D, Denwood, M, Farre, M, Nielsen, SS, Gussmann, M, Toft, N & Halasa, T 2021, 'Dynamics of somatic cell count (SCC) and differential SCC during and following intramammary infections', Journal of Dairy Science, bind 104, s. 3427-3438. https://doi.org/10.3168/jds.2020-19378

APA

Kirkeby, C., Schwarz, D., Denwood, M., Farre, M., Nielsen, S. S., Gussmann, M., Toft, N., & Halasa, T. (2021). Dynamics of somatic cell count (SCC) and differential SCC during and following intramammary infections. Journal of Dairy Science, 104, 3427-3438. https://doi.org/10.3168/jds.2020-19378

Vancouver

Kirkeby C, Schwarz D, Denwood M, Farre M, Nielsen SS, Gussmann M o.a. Dynamics of somatic cell count (SCC) and differential SCC during and following intramammary infections. Journal of Dairy Science. 2021 mar;104:3427-3438. https://doi.org/10.3168/jds.2020-19378

Author

Kirkeby, Carsten ; Schwarz, Daniel ; Denwood, Matt ; Farre, Michael ; Nielsen, Søren S ; Gussmann, Maya ; Toft, Nils ; Halasa, Tariq. / Dynamics of somatic cell count (SCC) and differential SCC during and following intramammary infections. I: Journal of Dairy Science. 2021 ; Bind 104. s. 3427-3438.

Bibtex

@article{9f63f709a6714e559975ec4105ffcd23,
title = "Dynamics of somatic cell count (SCC) and differential SCC during and following intramammary infections",
abstract = "Somatic cell count is frequently used as an indicator of intramammary infections (IMI) in dairy cattle worldwide. The newly introduced differential SCC (DSCC) can potentially contribute to detection of IMI. The purpose of this study was to investigate the dynamics of SCC and DSCC after IMI. We used a data set with monthly samples from 2 Danish dairy herds through 1 yr, using bacterial culture to identify IMI. The dynamics of SCC and DSCC with regard to IMI were assessed at quarter level following new IMI with each of 3 defined pathogen groups, major, minor, or {"}other{"} pathogens, using general additive models. Both SCC and DSCC increased after IMI, with a more pronounced increase if major or other pathogens were detected compared with minor pathogens. We found that DSCC increased after IMI with other pathogens in both herds and, in herd 2, after IMI caused by major and minor pathogens. We also estimated the duration of increased SCC and DSCC when they exceeded a threshold, done separately for each pathogen group. Major pathogens had the longest-lasting effect in both herds for both SCC and DSCC. We conclude that the magnitude and duration of response of SCC and DSCC to IMI differs between herds and causative pathogens.",
author = "Carsten Kirkeby and Daniel Schwarz and Matt Denwood and Michael Farre and Nielsen, {S{\o}ren S} and Maya Gussmann and Nils Toft and Tariq Halasa",
note = "Copyright {\textcopyright} 2021 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.",
year = "2021",
month = mar,
doi = "10.3168/jds.2020-19378",
language = "English",
volume = "104",
pages = "3427--3438",
journal = "Journal of Dairy Science",
issn = "0022-0302",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Dynamics of somatic cell count (SCC) and differential SCC during and following intramammary infections

AU - Kirkeby, Carsten

AU - Schwarz, Daniel

AU - Denwood, Matt

AU - Farre, Michael

AU - Nielsen, Søren S

AU - Gussmann, Maya

AU - Toft, Nils

AU - Halasa, Tariq

N1 - Copyright © 2021 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.

PY - 2021/3

Y1 - 2021/3

N2 - Somatic cell count is frequently used as an indicator of intramammary infections (IMI) in dairy cattle worldwide. The newly introduced differential SCC (DSCC) can potentially contribute to detection of IMI. The purpose of this study was to investigate the dynamics of SCC and DSCC after IMI. We used a data set with monthly samples from 2 Danish dairy herds through 1 yr, using bacterial culture to identify IMI. The dynamics of SCC and DSCC with regard to IMI were assessed at quarter level following new IMI with each of 3 defined pathogen groups, major, minor, or "other" pathogens, using general additive models. Both SCC and DSCC increased after IMI, with a more pronounced increase if major or other pathogens were detected compared with minor pathogens. We found that DSCC increased after IMI with other pathogens in both herds and, in herd 2, after IMI caused by major and minor pathogens. We also estimated the duration of increased SCC and DSCC when they exceeded a threshold, done separately for each pathogen group. Major pathogens had the longest-lasting effect in both herds for both SCC and DSCC. We conclude that the magnitude and duration of response of SCC and DSCC to IMI differs between herds and causative pathogens.

AB - Somatic cell count is frequently used as an indicator of intramammary infections (IMI) in dairy cattle worldwide. The newly introduced differential SCC (DSCC) can potentially contribute to detection of IMI. The purpose of this study was to investigate the dynamics of SCC and DSCC after IMI. We used a data set with monthly samples from 2 Danish dairy herds through 1 yr, using bacterial culture to identify IMI. The dynamics of SCC and DSCC with regard to IMI were assessed at quarter level following new IMI with each of 3 defined pathogen groups, major, minor, or "other" pathogens, using general additive models. Both SCC and DSCC increased after IMI, with a more pronounced increase if major or other pathogens were detected compared with minor pathogens. We found that DSCC increased after IMI with other pathogens in both herds and, in herd 2, after IMI caused by major and minor pathogens. We also estimated the duration of increased SCC and DSCC when they exceeded a threshold, done separately for each pathogen group. Major pathogens had the longest-lasting effect in both herds for both SCC and DSCC. We conclude that the magnitude and duration of response of SCC and DSCC to IMI differs between herds and causative pathogens.

U2 - 10.3168/jds.2020-19378

DO - 10.3168/jds.2020-19378

M3 - Journal article

C2 - 33455778

VL - 104

SP - 3427

EP - 3438

JO - Journal of Dairy Science

JF - Journal of Dairy Science

SN - 0022-0302

ER -

ID: 255679914