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Herd-level prevalence of Mycoplasma bovis in Swedish dairy herds determined by antibody ELISA and PCR on bulk tank milk and herd characteristics associated with seropositivity

https://doi.org/10.5878/ysyt-bd21
In this cross-sectional study, we investigated the prevalence of Mycoplasma bovis in bulk tank milk (BTM) and herd characteristics associated with a positive antibody test result in Swedish dairy herds. BTM samples from all Swedish dairy herds (n=3,144) were collected and analyzed with ID Screen antibody ELISA and PCR. Information on herd characteristics was collected from the national Dairy Herd Improvement (DHI) database. To identify herd characteristics associated with the presence of antibodies in BTM, logistic regression was used in four different models. See further information in "Description of data" and the published paper. Variables utilized in the study (categorized) are found in the file "M_bovis_dataset". Description by Växa Sverige of the calculation of animal welfare parameters are found in the file "Berakningsprinciper_valfardsindikatorer" (in Swedish only) Coding of parameters in the data set are found in "Coding_of_variables_M_bovis" and "Coding_of _continuous_variables_into_4_groups" Description of the study and data aquisition in "Description_of_data_M_bovis"
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Data files

Documentation files

Citation and access

Data access level:

Creator/​Principal investigator(s):

Research principal:

Principal's reference number:

  • SLU.kv.2022.4.4.IÄ-1

Data contains personal data:

No

Citation:

Language:

Method and outcome

Unit of analysis:

Population:

All Swedish dairy herds operating at this time

Time method:

Sampling procedure:

Description of sampling:

Bulk tank milk was collected via a national control program including all Swedish dairy herds. A small number of samples were not obtained or lost in transportation to SLU. Only herds in the 10 regions where there were any positive herds are included in the study of animal welfare and production, and thus in the dataset (n=2238). All herds were not affiliated with the Dairy Herd Improvement program, therefore some variables are lacking for such herds, see Description of data. Data on herd size, production and animal welfare indicators were retrieved from Växa Sverige.

Time period(s) investigated:

Variables:

25

Response rate/​participation rate:

99%

Description of the response rate/​participation rate:

99% regarding BTM analysis, 98% for herd size, 74% for production, reproduction and animal welfare data

Data format/​data structure:

Data collection Aggregation

Mode of collection:

Aggregation

Description of the mode of collection:

Data på besättningsnivå om produktion, reproduktion och djurvälfärdsparametrar i mjölkkobesättningar insamlade via Kokontrollen (Växa Sverige)

Time period(s) for data collection:

2018-11-01 - 2019-10-31

Data collector:

  • Växa Sverige

Source of the data:

  • Register/handlingar/förteckningar

Data collection Mätningar och tester

Mode of collection:

Mätningar och tester

Description of the mode of collection:

Tankmjölksproverna analyserades med ID Screen (IDvet) Elisa för antikroppar mot Mycoplasma bovis och PCR Pathoproof Mastitis4 (ThermoFischer)

Time period(s) for data collection:

2019-11-01 - 2019-11-30

Data collector:

Source of the data:

  • Forskningsdata

Geographic coverage

Geographic location:

Geographic description:

In the study we analyzed bulk milk samples from dairy cattle herds located in all regions of Sweden, but the analysis of herd characteristics associated with Mycoplasma bovis infection was limited to the 10 regions where there were herds positive for the infection. These were Götaland (southern Sweden) + Uppland. Therefore the dataset only includes herds in these regions. For specification of included regions, see the published paper.

Administrative information

Responsible department/​unit:

Department of Clinical Sciences

Other research principals:

Ethical Review

Reviewer:

  • Uppsala etikprövningsnämnd

Registration number:

5.8.18-02650/2019

Ethical review information:

Godkänd

Funding

Topic and keywords

CESSDA topic classification:

Swedish Standard Classification of Research Subjects 2025:

INSPIRE topic categories:

Keywords:

Publications

Citation:

Hurri, E., Ohlson, A., Lundberg, Å., Aspán, A., Pedersen, K., Tråvén, M. (2022) Herd-level prevalence of Mycoplasma bovis in Swedish dairy herds determined by antibody ELISA and PCR on bulk tank milk and herd characteristics associated with seropositivity. J Dairy Sci 105 (9), 7764-7772. https://doi.org/10.3168/jds.2021-21390

Metadata

Version 1
doris
slu
Version 1 published: