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"

Data contains personal data

Language

English

Method and outcome

Unit of analysis

Other

Population

All Swedish dairy herds operating at this time

Time Method

Cross-section

Sampling procedure

Total universe/Complete enumeration

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

2018-11-01 – 2019-10-31

Variables

Response rate/participation rate

99%

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

Data format / data structure

Numeric

Text

Data collection

Data collection 1

Mode of collection: Aggregation
Description of the mode of collection: Data at herd level on production, reproduction and animal welfare parameters in Swedish dairy herds collected through the Swedish cow control program (Växa Sverige)
Time period(s) for data collection: 2018-11-01 – 2019-10-31
Data collector: Växa Sverige
Source of the data: Registers/Records/Accounts

Data collection 2

Mode of collection: Measurements and tests
Description of the mode of collection: Bulk milk samples analyzed by ID Screen (IDvet) Elisa for antibodies to Mycoplasma bovis and by PCR Pathoproof Mastitis4 (ThermoFischer)
Time period(s) for data collection: 2019-11-01 – 2019-11-30
Data collector: SLU
Source of the data: Research data

Geographic coverage

Geographic spread

Geographic location: Sweden

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

Växa Sverige

National Veterinary Institute

Funding

Funding agency: FORMAS (Swedish research council for environment, agricultural science and spatial planning)

Ethics Review

Uppsala - Ref. 5.8.18-02650/2019

Approved

Topic and keywords

Research area

Morbidity and mortality (CESSDA Topic Classification)

Plants and animals (CESSDA Topic Classification)

Medical bioscience (Standard för svensk indelning av forskningsämnen 2011)

Clinical science (Standard för svensk indelning av forskningsämnen 2011)

Other veterinary science (Standard för svensk indelning av forskningsämnen 2011)

Farming (INSPIRE topic categories)

Health (INSPIRE topic categories)

General health and well-being (CESSDA Topic Classification)

Specific diseases, disorders and medical conditions (CESSDA Topic Classification)

Keywords

Agricultural and aquaculture facilities, Geographical names, Statistical units, Animal health, Epidemiology, Bulk tank milk, Elisa, Antibodies, M. bovis, Reproduction, Dairy herds, Mycoplasma bovis, Mortality, Welfare indicators

Publications

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
DOI: https://doi.org/10.3168/jds.2021-21390

If you have published anything based on these data, please notify us with a reference to your publication(s). If you are responsible for the catalogue entry, you can update the metadata/data description in DORIS.

Published: 2022-08-26