Farm characteristics and farmer perceptions associated with bovine tuberculosis incidents in areas of emerging endemic spread

Broughan, J.M. and Maye, Damian and Carmody, P. and Brunton, L.A. and Ashton, A. and Wint, W. and Alexander, N. and Naylor, Rhiannon and Ward, K. and Goodchild, A.V. and Hinchliffe, S. and Eglin, R.D. and Upton, P. and Nicholson, R. and Enticott, G (2016) Farm characteristics and farmer perceptions associated with bovine tuberculosis incidents in areas of emerging endemic spread. Preventive Veterinary Medicine, 129. pp. 88-98. ISSN 01675877

[img] Text (Post peer reviewed)
Farm characteristics and farmer perceptions.pdf - Accepted Version
Restricted to Repository staff only until 1 July 2017. (Publisher Embargo).
Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0.

Download (499kB)

Abstract

While much is known about the risk factors for bovine tuberculosis (bTB) in herds located in high incidence areas, the drivers of bTB spread in areas of emerging endemicity are less well established. Epidemiological analysis and intensive social research identified natural and social risk factors that may prevent or encourage the spread of disease. These were investigated using a case–control study design to survey farmers in areas defined as recently having become endemic for bTB (from or after 2006). Telephone surveys were conducted for 113 farms with a recent history of a bTB incident where their officially tuberculosis free status had been withdrawn (OTFW) (cases) and 224 controls with no history of a bTB incident, matched on location, production type and the rate of endemic bTB spread. Farmers were questioned about a range of farm management strategies, farm characteristics, herd health, wildlife and biosecurity measures with a focus on farmer attitudes and behaviours such as farmers’ perception of endemicity and feelings of control, openness and social cohesion. Data generated in the telephone surveys was supplemented with existing herd-level data and analysed using conditional logistic regression. Overall, herd size (OR 1.07), purchasing an animal at a cattle market compared to purchasing outside of markets (OR 2.6), the number of contiguous bTB incidents (2.30) and the number of inconclusive reactors detected in the 2 years prior to the case incident (OR 1.95) significantly increased the odds of a bTB incident. Beef herds using a field parcel more than 3.2 km away from the main farm and dairy herds reporting Johne’s disease in the previous 12 months were 3.0 and 4.7 times more likely to have a recent history of a bTB incident, respectively. Beef herds reporting maize growing near, but not on, their farm were less likely to be case herds. Operating a closed farm in the two years prior to the case breakdown did not reduce the odds of a bTB incident. Farmers that had recently experienced a bTB incident were more likely to have implemented badger biosecurity in the previous year, but no more likely than control farms to have implemented cattle biosecurity. Case farmers felt significantly less likely to be influenced by government, vets or other farmers compared to those with no history of bTB. This suggests that alternative methods of engaging with farmers who have recently had a breakdown may need to be developed.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: Bovine tuberculosis; Risk factor; Questionnaire; Case-control study
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > QL Zoology
S Agriculture > SF Animal culture
Divisions: Schools and Research Institutes > Countryside and Community Research Institute
Research Priority Areas: Environmental Dynamics & Governance
Depositing User: Anne Pengelly
Date Deposited: 16 May 2016 10:55
Last Modified: 31 Mar 2017 09:07
URI: http://eprints.glos.ac.uk/id/eprint/3489

University Staff: Request a correction | Repository Editors: Update this record

University Of Gloucestershire

Bookmark and Share

Find Us On Social Media:

Social Media Icons Facebook Twitter Google+ YouTube Pinterest Linkedin

Other University Web Sites

University of Gloucestershire, The Park, Cheltenham, Gloucestershire, GL50 2RH. Telephone +44 (0)844 8010001.