Antimicrobial resistance in commensal E. coli bacteria, and farm characteristics, on Vietnamese chicken farms

Sandra Nohrborg; Ulf Magnusson

doi:10.5878/d9ck-bd78

Antimicrobial resistance in commensal E. coli bacteria, and farm characteristics, on Vietnamese chicken farms

https://doi.org/10.5878/d9ck-bd78

To increase the understanding of the antibiotic resistance situation small- and medium-scale chicken farming in Vietnam, a study was performed at 305 chicken farms in Thai Nguyen province in Northern Vietnam. The study presents data on antibiotic resistance in commensal E. coli bacteria from healthy chickens (3 from each farm). In total 764 E. coli isolates were analysed for resistance against 15 antibiotic substances belonging to 11 antibiotic classes. Data on multi-drug resistance was also compiled. During the same farm visits, data for a questionnaire-based study was also collected (dataset, and related paper, already published - see related resource), to evaluate farmers' practices and knowledge regarding AMR, as well as farm characteristics. Knowledge and practices were evaluated by using a statistical method called item response theory (IRT). This method is described in more detail in the already published paper (see related resource). Some of those variables are also included in the current dataset since the purpose of the study, besides presenting resistance data, was to search for associations between farm(-er) characteristics and AMR occurrence. The dataset consists of 765 rows and 37 columns. Variable names and answers are coded and explanations can be found in a separate file, "Chicken_farm_AMR_Vietnam_2025_explanations". Some of the variables that are re-used in this dataset has been renamed in the data analysis process. For easier comparisons of the datasets, both the old and new variable names are included in the explanation file. The questionnaire can be found in the data description published elsewhere (see associated data description).

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Documentation files

Chicken_farm_AMR_Vietnam_2025_explanations.xlsx
14.97 KiB

Citation and access

Data access level:

Access to data is restricted

Creator/Principal investigator(s):

Research principal:

Swedish University of Agricultural Sciences
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Principal's reference number:

SLU.kv.2023.4.4.IÄ-4

Data contains personal data:

Yes

Type of personal data:

Pseudonymised data. The dataset contains id numbers that through a code key can be linked to coordinates of visited farms.

Code key exists:

Yes

Citation:

License:

Creative Commons Public Domain Dedication (CC0 1.0)Opens in a new tab

Language:

English

Method and outcome

Unit of analysis:

Population:

Small- and medium-scale poultry farmers i Thai Nguyen province, Vietnam, and chickens at their farms.

Time method:

Cross-section

Study design:

Cross-sectional study
Observational study

Sampling procedure:

Mixed probability and non-probability

Description of sampling:

A sample size of 300 farms in total was considered sufficient for the purpose of the study, and was distributed evenly between the two farm-size categories. To select farms to be included, lists of all small- and medium-scale chicken-raising households, were collected from the sub-Department of Animal Health (sub-DAH) in each district. To avoid an over- or under-representation of a district, the numbers of farms to be included were stratified according to the proportion of farms in each farm size category in each district. Two sampling frames, one for each farm-size category, were created from the obtained lists of chicken-raising households for each district. For logistic reasons, villages with less than five households were removed from the sampling frames. According to the stratification, households were then randomly selected via an online randomization tool (randomizer.org). If one household needed to be replaced for any reason, a nearby farm that met the requirements was included instead. Three chickens/hens from each farm were randomly selected for sampling (cloacal swabs) for the purpose of bacterial culturing (E. coli) and antibiotic susceptibility testing. If several age categories of birds were present at a farm, birds from the oldest age category were sampled.

Time period(s) investigated:

2021-11-25 - 2022-01-20

Variables:

37

Number of individuals/objects:

764

Response rate/participation rate:

100%

Data format/data structure:

Species and taxons:

Data collection - Face-to-face interview

Mode of collection:

Face-to-face interview

Description of the mode of collection:

Face-to-face interviews using a structured questionnaire.

Time period(s) for data collection:

2021-11-25 - 2022-01-20

Data collector:

International Livestock Research Institute
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Source of the data:

Population group

Instrument

Name:

Netigate

Type:

Technical instrument(s)

Description of the instrument:

Online survey tool platform for distribution of questionnaires and data collection

Data collection - Physical measurements and tests

Mode of collection:

Physical measurements and tests

Description of the mode of collection:

Cloacal swabs from 3 chickens/hens at each farm

Time period(s) for data collection:

2021-11-25 - 2022-01-20

Data collector:

International Livestock Research Institute
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Source of the data:

Biological samples

Instrument

Name:

Type:

Technical instrument(s)

Data collection - Physical measurements and tests

Mode of collection:

Physical measurements and tests

Description of the mode of collection:

Antibiotic susceptibility testing via broth microdilution

Time period(s) for data collection:

2023-01-24 - 2023-11-02

Data collector:

Swedish University of Agricultural Sciences
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Source of the data:

Biological samples

Instrument

Name:

Thermofisher EUVSEC3 microdilution plate

Type:

Technical instrument(s)

Description of the instrument:

Plate for antibiotic susceptibility testing of Salmonella or E. coli bacteria via broth microdilution.

Geographic coverage

Geographic location:

Viet Nam

Geographic description:

Three districts: Thai Nguyen City, Dong Hy and Vo Nhai, Thai Nguyen province, northern Vietnam

Administrative information

Responsible department/unit:

Department of Clinical Sciences

Funding

Funding agency:

Swedish Research Council for Environment Agricultural Sciences and Spatial Planning
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Award number:

2018-01093_3

Award title:

Curbing the emergence of antimicrobial resistance in a changing global livestock sector

Topic and keywords

Standard för svensk indelning av forskningsämnen 2025:

Keywords:

Relations

Continues:

Access to animal health services and drugs, and practices and knowledge related to antimicrobial resistance, among Vietnamese chicken farmers

References:

Understanding Vietnamese chicken farmers' knowledge and practices related to antimicrobial resistance using an item response theory approach

Related research data:

Contact

Ulf Magnussonulf.magnusson@slu.se

Arkiv SLUarkiv@slu.se

Metadata

Version 1

Antimicrobial resistance in commensal E. coli bacteria, and farm characteristics, on Vietnamese chicken farms

Documentation files

Citation and access

Data access level:

Creator/​Principal investigator(s):

Research principal:

Principal's reference number:

Data contains personal data:

Type of personal data:

Code key exists:

Citation:

License:

Language:

Method and outcome

Unit of analysis:

Population:

Time method:

Study design:

Sampling procedure:

Description of sampling:

Time period(s) investigated:

Variables:

Number of individuals/​objects:

Response rate/​participation rate:

Data format/​data structure:

Species and taxons:

Data collection - Face-to-face interview

Mode of collection:

Description of the mode of collection:

Time period(s) for data collection:

Data collector:

Source of the data:

Instrument

Name:

Type:

Description of the instrument:

Data collection - Physical measurements and tests

Mode of collection:

Description of the mode of collection:

Time period(s) for data collection:

Data collector:

Source of the data:

Instrument

Name:

Type:

Data collection - Physical measurements and tests

Mode of collection:

Description of the mode of collection:

Time period(s) for data collection:

Data collector:

Source of the data:

Instrument

Name:

Type:

Description of the instrument:

Geographic coverage

Geographic location:

Geographic description:

Administrative information

Responsible department/​unit:

Funding

Funding agency:

Award number:

Award title:

Topic and keywords

Standard för svensk indelning av forskningsämnen 2025:

Keywords:

Relations

Continues:

References:

Related research data:

Contact

Metadata

Creator/Principal investigator(s):

Number of individuals/objects:

Response rate/participation rate:

Data format/data structure:

Responsible department/unit: