Cattle producers’ perceptions of biosecurity
© Brennan and Christley; licensee BioMed Central Ltd. 2013
Received: 29 October 2012
Accepted: 26 March 2013
Published: 10 April 2013
The limited use of biosecurity practices by many in the farming community is likely to be due to a range of factors; further understanding of this issue is required. In this study, attitudes and behaviours of producers relating to selected biosecurity practices and the farming industry were studied by interviewing cattle farmers within a 100 km2 study area in north-west England using an interview-based questionnaire.
Most producers appeared to be familiar with the broad concept of the term biosecurity, although risks due to indirect contacts, rather than direct (animal) contacts, were more frequently highlighted. Most producers felt the nominated biosecurity practices were in some way useful, however there was not always agreement between the usefulness of a practice and it being undertaken, and vice versa. In agreement with other studies conducted in the UK, farmers most preferred to obtain information and advice on biosecurity from private veterinarians, but also highlighted DEFRA as a source.
This study highlights the importance of understanding the motivators and barriers behind the uptake of biosecurity practices on farms, as perceptions are variable. Further understanding of these issues is needed in order to more effectively communicate information in regards to herd health and disease prevention. By identifying differences in producers’ attitudes, programs can be tailored specifically to individuals’ needs.
KeywordsCattle Cow Cows Bovine Biosecurity Prevention Attitudes Motivators Barriers Perception Risk
There are a range of benefits proposed to arise from implementation of biosecurity practices to assist in the prevention and control of disease on cattle farms. These include improved animal welfare , increased profit margins , improvement in vaccine effectiveness and reduction in incidences of antimicrobial and anthelmintic resistance . In addition, consumer factors such as the demand for quality assured products  and public awareness of zoonoses  may encourage uptake of preventive practices. Enhanced job satisfaction has also been suggested as a motivator for engaging in biosecure practices . It may appear prudent, therefore, for producers to use biosecurity practices to prevent or lower levels of animal disease. However, many farmers do not follow any preventive protocols and many reasons have been postulated as to why this is the case [2, 7–12].
The biosecurity measures undertaken on farms appears to depend not only on economics or feasibility, but on producers’ understanding of the principles of biosecurity and their attitudes towards and motivations for undertaking/not undertaking such disease preventive measures . In addition, the social network or community structure that producers belong to (i.e. what others within their peer group are doing; ) and the way they generally see the farming industry may also influence the undertaking of preventive measures [15–18]. The role of social behaviour and personality traits in the decision making process of producers and the subsequent effect on on-farm levels of disease or the use of preventive measures has been investigated [15, 17, 19–36]. Some studies have considered health behaviour theories when exploring behaviours in an animal based context. These have focused on topics such as oestrus detection , animal disease reporting , the use of biosecurity by farmers, vets and other industry partners such as hauliers , zoonotic disease prevention  and risk management strategy adoption on pig farms . Further understanding of the components that effect and lead to certain behaviours, including producers’ attitudes to practices, may assist in helping to understand how to motivate and engage individuals in disease preventive activities. Advances in this area may be useful for private veterinarians and other herd health specialists looking to promote and encourage the use of preventive practices by utilising motivators or removing barriers for change.
The aims of this study were to explore producers’ understanding of the term biosecurity and producer attitudes towards recommended biosecurity practices. The relationship between these attitudes and other farm/farmer level factors, and sources of disease prevention information used by producers were also investigated to further understand the motivations of producers.
Producers’ understanding of biosecurity and attitudes towards the farming industry
Themes arising from 56 farmers’ own definitions of biosecurity within the study area in North-West England
Coding of responses
No. of responses contributing to theme
Preventing entry of diseases/pathogens onto farms
Managing diseases/pathogens within farms
General security (not biosecurity)
Indirect contacts between premises
Direct contacts between premises
General security (not biosecurity)
More detailed understanding of biosecurity (organising themes) typically related to pathogens, diseases or infections in stock (38%, n = 21/56) and indirect contacts between farms via people, vehicles or other fomite-type transmission routes (38%, n = 21/56). Within-farm management of animals, people and equipment was the next most common theme identified (27%, n = 15/56) (Table 1).
Most farmers (64%, n = 36) believed that benefit could be attained through implementation of even a few biosecurity practices, whereas 27% (n = 15) of farmers believed that many or all practices had to be carried out for benefit to be realised (9% did not know, n = 5). Those who suggested that even a few practices could give benefit highlighted specifically concepts relating to visitors and staff cleaning and disinfecting after handling stock (n = 16/36; 44%), maintaining a closed herd (n = 8/36; 22%) and ensuring visitors and staff clean and disinfect vehicles (n = 7/36; 19%) as being beneficial. The majority of farmers believed biosecurity was more cost-effective (75%, n = 42) and more time efficient (66%, n = 37) than treating disease on-farm. Farmers were given the opportunity to nominate particular individuals that they thought should be involved in implementing and maintaining biosecurity; those highlighted included employees (n = 20/56; 36%), everyone (n = 12/56; 21%), self/wife/family (n = 10/56; 18%) and veterinarians (n = 8/56; 14%).
There were a range of opinions regarding producers’ views on the future of the UK farming industry; marginally more producers had a negative view (27%, n = 15), followed by a positive view (23%, n = 13), a very negative view (21%, n = 12) and both a positive and negative view (18%, n = 10).
Farmers’ attitudes towards biosecurity
Biosecurity practices listed according to usefulness and whether they were nominated as being undertaken on farms by 56 farmers within the study area*
Very useful/useful and do
Very useful/useful and don’t do
Not very useful and do
Not very useful and don’t do
Isolating sick animals
Encouraging vehicles to park away from stock areas
Cleaning and disinfecting vehicles after moving animals
Not grazing, or resting pastures recently spread with waste
Regular pest control
Buying from known health status farms
Seeking regular advice from vets and herd health schemes
Minimising contact with neighbours’ animals
Ensuring visitors clean and disinfect after visits
Minimising equipment use for different purposes
Fencing off stock access to watercourses
Isolating animals moving onto the farm
Testing animals moving onto the farm
Using own vehicles for animal movements
Minimising visitors to the farm
Minimising equipment sharing between farms
Locating animal loading areas away from the rest of the stock
Not co-grazing different species
Sources of information on biosecurity
At the time of the study, most producers nominated that they sourced biosecurity information from DEFRA/government (46%, n = 26), followed by private vets (41%, n = 23) and press/farming press (18%, n = 10). Five farmers (9%) each indicated that they sourced information from farm assurance advisors, and believed biosecurity was a case of common sense/general knowledge.
There appears to be an overall understanding of the term ‘biosecurity’ in the majority of the farming community in this area, with producers having wide and varied attitudes towards the usefulness of particular biosecurity practices that have been recommended in the literature. Although this was somewhat expected, it appears the reasons behind these opinions are more varied than just farm economics and may involve other factors such as general attitudinal motivations. In order to successfully encourage the uptake of preventive practices, these motivations must be further understood .
In general most producers appeared to be familiar with the concept of biosecurity in broad terms in relation to the prevention of disease, although there were a proportion of respondents who appeared not to understand the usual meaning of ‘biosecurity’. Whilst the majority of farmers recognised the role of biosecurity in reduction of pathogen entry to a farm, some also linked this term with the prevention or reduction of disease spread within a farm. The term does, however, appear to be predominantly associated with the use of cleaning and disinfection to prevent transmission via indirect contacts. The emphasis on indirect transmission may be as a result of the foot and mouth disease (FMD) outbreak in the UK in 2001; after implementation of the animal movement ban, one of the practices producers could undertake to attempt to prevent the disease was the cleaning and disinfection of vehicles and people coming on to their farms; this was encouraged by the government  and broadly publicised. It has been postulated previously that one of the outcomes of animal epidemics is that people can be left with negative feelings towards the experience ; it is possible that this could affect attitudes towards actions recommended in relation to disease outbreaks in the future . Farmers experience with the FMD outbreak may have had a major impact on the understanding of biosecurity at the time of this study, and may account for the results found. This also suggests that farmers’ understanding of biosecurity may not be constant and could vary over time. Although not examined here, there is some evidence that UK farmers in high bovine tuberculosis (bTB) areas view biosecurity in terms of bTB . Similarly, in a study by Hernandez et al. , some pig producers in Australia undertook different biosecurity practices because of the perceived increased risk of disease during an outbreak. Therefore it is possible that salient diseases and experiences may drive current understanding and interpretation of terms such as biosecurity. It has been shown that FMD risks from indirect contacts can be greater than the risk from direct contacts , so perhaps producers in the study area were aware of this. Prevention of indirect contacts may be easier to undertake and less expensive than prevention of direct contacts (e.g. minimising the number of visitors to a farm versus buying stock from farms of known disease status), particularly if they are already being undertaken, as has been previously identified [29, 46]. If producers don’t perceive something is within their capabilities, this will result in inaction. This is important when planning interventions to encourage preventive practices; farmers surrounded by other farmers who undertake risky practices in relation to disease prevention may feel less able to undertake measures themselves because they perceive they have little control over the situation (e.g. farmers not being able to alter the condition of poor boundary fences which are their neighbours’ responsibility). This was stated by several farmers during the course of the interviews, and has been demonstrated previously .
There can be disconnect between attitudes towards change, and the actual undertaking of actions for change. Risk aversion does not always follow on from perceived risk; farmers can perceive something as risky but can carry out the practice anyway, and vice versa [41, 48–50]. In the current study, this was reflected in the finding that certain practices were perceived as useful (e.g. having a closed herd) but were not undertaken; and conversely actions perceived as not useful (e.g. locating animal loading areas away from stock) being undertaken by farmers. Farmers in a Danish study recognized the purchase of animals from dealers as risky, but some still undertook the practice . This point could also be reflected by the finding that most producers believed that biosecurity was cost-effective and time-efficient, but not many stated that they carried out these practices. In contrast, there have been studies indicating that attitudes towards practices can be predictors of attitudes towards other issues  and even behaviours [23, 53]. Further investigation is required to assess the association between attitudes and resulting actions, as the current findings suggest that different interventions may be needed depending on whether farmers think practices are useful or not. There has been research conducted in the medical and veterinary fields which address these points using health psychology models [39, 54]. Knowing ‘where’ individuals are in relation to their attitudes could be utilised to facilitate action via tailored strategies [55, 56].
In terms of effecting or encouraging change, understanding how producers currently find information and advice is important. It is not surprising that farmers nominated private veterinarians as preferred sources of information, and would trust their advice on which preventive practices to carry out. This has been highlighted in many other studies [6, 10, 23, 39, 44, 52, 57–63]. It is interesting that many farmers saw DEFRA as the main information source in relation to biosecurity in the current study. This is despite the fact that there have been previous reports of farmers generally being negative about the information they receive from DEFRA regarding biosecurity  and the general lack of trust individuals can have in governmental organisations , particularly after episodes like BSE in the UK . There has been little advice published by DEFRA/AHVLA on biosecurity since this study was conducted . Therefore, there may be an important role for AHVLA, or the Animal Health and Welfare Board for England (AHWBE; http://www.defra.gov.uk/ahwbe/), the new body taking forward the recommendations from the Responsibility and Cost Sharing Advisory Group, in creating advice for farmers relating to disease preventative practices as the current study indicates a need for it. It is presently not very clear what roles these organisations will have, so it is difficult to say what information resources will be available to farmers. Ultimately, behaviour change can be difficult to elicit , and in order to be successful, any program which aims to make a ‘cultural’ change must involve farmers in the decision-making process about how best to do this.
No information was sought to identify if attitudes of non-responders towards biosecurity differed from the participants. It is also possible that socially desirable or ‘correct’ answers may have been given by the producers in relation to their attitudes or activities, potentially leading to data bias. There is evidence in the literature to suggest that statement of behaviours from individuals and actual behaviours are not always consistent [35, 67]. The top two disease-reducing practices nominated by farmers as the most useful were the most likely (and most often recommended in the literature; [68, 69]) to result in the prevention of direct animal contacts. In addition, very few people nominated that they undertook these practices, which suggests that some of the answers given were not simply the socially desirable ones. Other limitations, such as how representative the farmers in this study are of other farmers within the UK, have been previously addressed in Brennan et al.  and Brennan and Christley .
From the results reported here it appears that there are wide and varied attitudes towards biosecurity in the farming community; generally most farmers appear to be aware of the disease risks they are undertaking by carrying out or not carrying out certain practices, or not. However, the understanding of what the term represents and attitudinal motivations appear to have an effect on producer behaviour. In order for biosecurity to be utilised more for disease prevention, the motivations behind certain behaviours must be explored further.
The target population was cattle farmers in a single regional area. The sampling frame was a list of cattle farmers in a 100 km2 study area of north-west England that had been used previously in studies conducted by the University of Liverpool [71, 72]. Farmers were contacted initially by mail. Phone calls (or visits if phone numbers were not available) were then made to farmers to determine whether they were willing to participate in the study, and to obtain consent for their data to be used in the research. During discussions with farmers, 20 other potential farmers were identified that were not listed on the original list. These farmers were contacted and included in the study. Of the 81 farmers approached, 10 no longer owned cattle. Of the remaining 71, thirteen farmers declined to participate, three were shortly to cease trading, one farmer could not be contacted and one farmer couldn’t be visited in the allocated data collection period. Therefore, visits were made to 56 cattle farms and owners/managers were interviewed using a questionnaire based structure between July and September 2005, giving a response rate of 78.8% (56/71). Questions relating to direct and indirect contacts between cattle farms, and biosecurity practices undertaken on farms were asked. Results relating to some aspects of the study have been previously reported in Brennan et al.  and Brennan and Christley . Further information relating to study design, questionnaire piloting and reasons for non-participation can be found in these publications. A copy of the questionnaire can be accessed through Brennan and Christley .
Questionnaire structure relating to attitudes towards biosecurity
Using an open-interview format, farmers were asked to give their definition of biosecurity in their own words. Notes were taken by the primary author on the corresponding responses. Farmers were also asked about their thoughts on the cost-effectiveness and time-efficiency of carrying out biosecurity practices, and their general views on the farming industry (closed questions).
Closed questions were used to determine attitudes towards 19 specific biosecurity practices (see Brennan et al.  Appendix B for a list of practices). Farmers were asked if they thought each practice was very useful, useful or not very useful (or don’t know), as well as if they undertook any of the practices. These attitudes and whether the practices were carried out on farms were compared for discrepancies e.g. a practice was deemed by the majority of farmers to be very useful but was nominated as being undertaken infrequently.
A list of sources of biosecurity information given to 56 farmers to choose from during on-farm interviews
Farmers’ discussion groups
Other (please specify)
Data from the questionnaires were electronically transferred into a Microsoft Access database (Microsoft Office 2003, Microsoft Corporation) by an automated capture content system (Verity TeleForm Version 9.1; Verity Inc.). The responses to closed questions were automatically transferred by the system into the nominated database; open answer responses were entered manually.
Interpretive coding of the producers’ definitions of biosecurity was carried out. The main concepts from respondents’ definitions were classified firstly into basic themes using thematic analysis techniques [73, 74]. A number of different basic theme structures were created by the first author; these themes were created after repeatedly reading the responses and identifying common elements amongst them. These basic themes were then classified into organising themes, which were subsequently organised further into global themes . As farmers sometimes included several concepts in their definitions, more than 56 original concepts that were later coded were recorded.
Descriptive analyses were performed using Minitab Release 14.1 (Minitab Inc.) and SPSS 12.0.1 for Windows (SPSS Inc.).
This study was conducted in accordance with the research ethics requirements of the Faculty of Veterinary Science at the University of Liverpool. Due to the nature of the study and the low risk posed to participants, formal approval from the Ethics Committee was not a requirement at the time of the study. Potential participants were contacted by mail with information explaining the purpose and nature of the study and inviting participation. Participants were informed that their data would be anonymised, kept securely and that any material potentially leading to identification would be removed. Subsequently, potential participants were contacted by telephone (or by visiting if a phone number was not available) in order to provide further information, to obtain verbal consent and to arrange a time for the survey to be conducted. Participants were again asked to provide verbal consent prior to the interview and it was made clear that by agreeing to be interviewed, they were agreeing to be part of the study.
Many thanks to the farmers who participated in both the pilot and main data collection part of the project. Many thanks also to Richard Kemp for his assistance during the initial phases of the project. We thank DEFRA and HEFCE for funding this project (grant VTRI VT0103).
- MAFF/DEFRA: Farm biosecurity: Protecting herd health. 2002, http://adlib.everysite.co.uk/resources/000/107/894/biosec.pdf.
- van Schaik G, Dijkhuizen AA, Benedictus G, Barkema HW, Koole JL: Exploratory study on the economic value of a closed farming system on Dutch dairy farms. Vet Rec. 1998, 142 (10): 240-242. 10.1136/vr.142.10.240.PubMedView Article
- Anderson JF: Biosecurity - a new term for an old concept - how to apply it. Bovine Pr. 1998, 32 (2): 61-70.
- Hennessy DA: Economic aspects of agricultural and food biosecurity. Biosecur Bioterror. 2008, 6 (1): 66-77. 10.1089/bsp.2007.0016.PubMedView Article
- Dargatz DA, Garry FB, Traub-Dargatz JL: An introduction to biosecurity of cattle operations. Vet Clin N Am-Food Anim Pract. 2002, 18 (1): 1-5. 10.1016/S0749-0720(02)00002-6.View Article
- Gunn GJ, Heffernan C, Hall M, McLeod A, Hovi M: Measuring and comparing constraints to improved biosecurity amongst GB farmers, veterinarians and the auxiliary industries. Prev Vet Med. 2008, 84 (3–4): 310-323.PubMedView Article
- Nerlich B, Wright N: Biosecurity and insecurity: The interaction between policy and ritual during the foot and mouth crisis. Environ Values. 2006, 15 (4): 441-462. 10.3197/096327106779116168.View Article
- Donaldson A: Biosecurity after the event: risk politics and animal disease. Environ Plann A. 2008, 40 (7): 1552-1567. 10.1068/a4056.View Article
- Pinto JC, Urcelay SV: Biosecurity practices on intensive pig production systems in Chile. Prev Vet Med. 2003, 59 (3): 139-145. 10.1016/S0167-5877(03)00074-6.View Article
- Anon: Biosecurity: challenges of disease control at every level. Vet Rec. 2005, 157 (16): 461-464.View Article
- van Schaik G, Nielen M, Dijkhuizen AA: An economic model for on-farm decision support of management to prevent infectious disease introduction into dairy farms. Prev Vet Med. 2001, 51 (3–4): 289-305.PubMedView Article
- Gunn GJ, Stott AW, Humphry RW: Modelling and costing BVD outbreaks in beef herds. Vet J. 2004, 167 (2): 143-149. 10.1016/S1090-0233(03)00112-6.PubMedView Article
- Gilmour J, Beilin R, Sysak T: Biosecurity risk and peri-urban landholders - using a stakeholder consultative approach to build a risk communication strategy. J Risk Res. 2011, 14 (3): 281-295. 10.1080/13669877.2010.528560.View Article
- Wejnert B: Integrating models of diffusion of innovations: A conceptual framework. Annu Rev Sociol. 2002, 28: 297-326. 10.1146/annurev.soc.28.110601.141051.View Article
- Msoffe PLM, Bunn D, Muhairwa AP, Mtambo MMA, Mwamhehe H, Msago A, Mlozi MRS, Cardona CJ: Implementing poultry vaccination and biosecurity at the village level in Tanzania: a social strategy to promote health in free-range poultry populations. Trop Anim Health Prod. 2010, 42 (2): 253-263. 10.1007/s11250-009-9414-8.PubMedPubMed CentralView Article
- Leibler JH, Carone M, Silbergeld EK: Contribution of company affiliation and social contacts to risk estimates of between-farm transmission of avian influenza. PLoS One. 2010, 5 (3): e9888-10.1371/journal.pone.0009888.PubMedPubMed CentralView Article
- Morgan-Davies C, Waterhouse A, Milne CE, Stott AW: Farmers’ opinions on welfare, health and production practices in extensive hill sheep flocks in Great Britain. Livest Sci. 2006, 104 (3): 268-277. 10.1016/j.livsci.2006.04.024.View Article
- University Of Reading: Project SE4003: ‘Only bad farmers suffer from livestock disease’: An exploration of the drivers to collective biosecurity behaviour amongUK cattle and sheep farmers. UK: Department for Environment, Food andRural Affairs Report; 2012:1–31.
- Tarabla HD, Dodd K: Associations between farmers’ personal characteristics, management practices and farm performance. Br Vet J. 1990, 146 (2): 157-164. 10.1016/0007-1935(90)90008-Q.PubMedView Article
- Austin EJ, Deary IJ, Willock J: Personality and intelligence as predictors of economic behaviour in Scottish farmers. Eur J Personal. 2001, 15: S123-S137. 10.1002/per.421.View Article
- Benjamin LA, Fosgate GT, Ward MP, Roussel AJ, Feagin RA, Schwartz AL: Attitudes towards biosecurity practices relevant to Johne’s disease control on beef cattle farms. Prev Vet Med. 2010, 94 (3–4): 222-230.PubMedView Article
- Bigras-Poulin M, Meek AH, Blackburn DJ, Martin SW: Attitudes, management practices, and herd performance - A study of Ontario dairy farm managers. 1. Descriptive aspects. Prev Vet Med. 1985, 3 (3): 227-240. 10.1016/0167-5877(85)90018-2.View Article
- Jansen J, Borne BHP, Renes RJ, Schaik G, Lam TJGM, Leeuwis C: Explaining mastitis incidence in Dutch dairy farming: the influence of farmers' attitudes and behaviour. Prev Vet Med. 2009, 92 (3): 210-223. 10.1016/j.prevetmed.2009.08.015.PubMedView Article
- Enticott G: The spaces of biosecurity: prescribing and negotiating solutions to bovine tuberculosis. Environ Plann A. 2008, 40 (7): 1568-1582. 10.1068/a40304.View Article
- Enticott G: The ecological paradox: social and natural consequences of the geographies of animal health promotion. T I Brit Geogr. 2008, 33 (4): 433-446. 10.1111/j.1475-5661.2008.00321.x.View Article
- Heffernan C, Nielsen L, Thomson K, Gunn G: An exploration of the drivers to bio-security collective action among a sample of UK cattle and sheep farmers. Prev Vet Med. 2008, 87 (3–4): 358-372.PubMedView Article
- Schembri N, Holyoake PK, Hernandez-Jover M, Toribio JALML: A qualitative study of the management and biosecurity practices of 13 interviewed pig owners selling via informal means in New South Wales, Australia. Anim Prod Sci. 2010, 50 (9): 852-862. 10.1071/AN09226.View Article
- DEFRA: Understanding behaviours in a farming context: Bringing theoretical and applied evidence together from across DEFRA andhighlighting policy relevance and implications for future research. In Agricultural Change and Environment Observatory Discussion Report. Editedby Pike T. UK: DEFRA; 2008.
- Casal J, Manuel A, Mateu E, Martin M: Biosecurity measures on swine farms in Spain: perceptions by farmers and their relationship to current on-farm measures. Prev Vet Med. 2007, 82 (1/2): 138-150.PubMedView Article
- Christopher P: Psychology of persuasion: evolving into advice-orientated consultants. Vet Times. 2010, 40 (25): 6-8.
- Gasson R: Goals and values of farmers. J Agric Econ. 1973, 24 (3): 521-542. 10.1111/j.1477-9552.1973.tb00952.x.View Article
- Beaudeau F, van der Ploeg JD, Boileau B, Seegers H, Noordhuizen J: Relationships between culling criteria in dairy herds and farmers’ management styles. Prev Vet Med. 1996, 25 (3–4): 327-342.View Article
- Willock J, Deary IJ, McGregor MM, Sutherland A, Edwards-Jones G, Morgan O, Dent B, Grieve R, Gibson G, Austin E: Farmers’ attitudes, objectives, behaviors, and personality traits: The Edinburgh Study of Decision Making on Farms. J Vocat Behav. 1999, 54 (1): 5-36. 10.1006/jvbe.1998.1642.View Article
- Lensink BJ, Veissier I, Florand L: The farmers’ influence on calves’ behaviour, health and production of a veal unit. Anim Sci. 2001, 72: 105-116.
- Racicot M, Venne D, Durivage A, Vaillancourt JP: Evaluation of the relationship between personality traits, experience, education and biosecurity compliance on poultry farms in Quebec, Canada. Prev Vet Med. 2012, 103 (2–3): 201-207.PubMedView Article
- Racicot M, Venne D, Durivage A, Vaillancourt JP: Evaluation of strategies to enhance biosecurity compliance on poultry farms in Quebec: Effect of audits and cameras. Prev Vet Med. 2012, 103 (2–3): 208-218.PubMedView Article
- Garforth C, McKemey K, Rehman T, Tranter R, Cooke R, Park J, Dorward P, Yates C: Farmers’ attitudes towards techniques for improving oestrus detection in dairy herds in South West England. Livest Sci. 2006, 103 (1–2): 158-168.View Article
- Palmer S, Sully M, Fozdar F: Farmers, animal disease reporting and the effect of trust: a study of West Australian sheep and cattle farmers. Rural Soc. 2009, 19 (1): 32-48. 10.5172/rsj.3220.127.116.11.View Article
- Ellis-Iversen J, Cook AJC, Watson E, Nielen M, Larkin L, Wooldridge M, Hogeveen H: Perceptions, circumstances and motivators that influence implementation of zoonotic control programs on cattle farms. Prev Vet Med. 2010, 94 (3–4): 318-318.View Article
- Valeeva NI, van Asseldonk M, Backus GBC: Perceived risk and strategy efficacy as motivators of risk management strategy adoption to prevent animal diseases in pig farming. Prev Vet Med. 2011, 102 (4): 284-295. 10.1016/j.prevetmed.2011.08.005.PubMedView Article
- Ndiva Mongoh M, Hearne R, Khaitsa ML: Private and public economic incentives for the control of animal diseases: The case of anthrax in livestock. Transbound Emerg Dis. 2008, 55 (8): 319-328. 10.1111/j.1865-1682.2008.01050.x.PubMedView Article
- Zingg A, Siegrist M: Lay people’s and experts’ risk perception and acceptance of vaccination and culling strategies to fight animal epidemics. J Risk Res. 2012, 15 (1): 53-66. 10.1080/13669877.2011.601320.View Article
- Enticott G, Vanclay F: Scripts, animal health and biosecurity: The moral accountability of farmers’ talk about animal health risks. Health Risk Soc. 2011, 13 (4): 293-309. 10.1080/13698575.2011.575456.View Article
- Hernandez-Jover M, Taylor M, Holyoake P, Dhand N: Pig producers’ perceptions of the Influenza Pandemic H1N1/09 outbreak and its effect on their biosecurity practices in Australia. Prev Vet Med. 2012, 106 (3–4): 284-294.PubMedView Article
- Honhold N, Taylor NM, Wingfield A, Einshoj P, Middlemiss C, Eppink L, Wroth R, Mansley LM: Evaluation of the application of veterinary judgement in the pre-emptive cull of contiguous premises during the epidemic of foot-and-mouth disease in Cumbria in 2001. Vet Rec. 2004, 155 (12): 349-355. 10.1136/vr.155.12.349.PubMedView Article
- Delabbio J, Murphy BR, Johnson GR, McMullin SL: An assessment of biosecurity utilization in the recirculation sector of finfish aquaculture in the United States and Canada. Aquaculture. 2004, 242 (1–4): 165-179.View Article
- Ceddia MG, Heikkila J, Peltola J: Biosecurity in agriculture: an economic analysis of coexistence of professional and hobby production. Aust J Agr Resour Econ. 2008, 52 (4): 453-470. 10.1111/j.1467-8489.2008.00438.x.View Article
- Hoe FGH, Ruegg PL: Opinions and practices of Wisconsin dairy producers about biosecurity and animal well-being. J Dairy Sci. 2006, 89 (6): 2297-2308. 10.3168/jds.S0022-0302(06)72301-3.PubMedView Article
- Meuwissen MPM, Huirne RBM, Hardaker JB: Risk and risk management: an empirical analysis of Dutch livestock farmers. Livest Prod Sci. 2001, 69 (1): 43-53. 10.1016/S0301-6226(00)00247-5.View Article
- Moore DA, Merryman ML, Hartman ML, Klingborg DJ: Comparison of published recommendations regarding biosecurity practices for various production animal species and classes. JAVMA-J Am Vet Med Assoc. 2008, 233 (2): 249-256. 10.2460/javma.233.2.249.View Article
- Kristensen E, Jakobsen EB: Danish dairy farmers’ perception of biosecurity. Prev Vet Med. 2011, 99 (2–4): 122-129.PubMedView Article
- University Of Reading & Scottish Agricultural College: Project OZ0144: Constraints to uptake of adequate biosecurity on UK cattle and sheep farms, with special reference to zoonotic diseases.UK: Department for Environment, Food and Rural Affairs Report; 2003:1–25.
- Lensink J, Boissy A, Veissier I: The relationship between farmers’ attitude and behaviour towards calves, and productivity of veal units. Ann Zootech. 2000, 49 (4): 313-327. 10.1051/animres:2000122.View Article
- Slater MD, Rouner D: Value-affirmative and value-protective processing of alcohol education messages that include statistical evidence or anecdotes. Commun Res. 1996, 23 (2): 210-235. 10.1177/009365096023002003.View Article
- Martin A: Implementing your herd health plan. Vet Times. 2011, 41 (7): 12.
- Garforth C: Motivating farmers: Insights from social psychology. Albuquerque, New Mexico: NMC Annual Meeting Proceedings; 2010:60–67.
- Hovi M, McLeod A, Gunn G: Assessing UK farmer attitudes to biosecurity on sheep and cattle farms. Res Vet Sci. 2005, 78 (Supplement A): 24.
- Faust MA, Kinsel ML, Kirkpatrick MA: Characterizing biosecurity, health, and culling during dairy herd expansions. J Dairy Sci. 2001, 84 (4): 955-965. 10.3168/jds.S0022-0302(01)74554-7.PubMedView Article
- Holliman A: Restocking problems post-FMD. Cattle Pract. 2003, 11: 311-312.
- Denney I: Biosecurity, livestock health and the livestock producer. Aust Vet J. 2007, 85 (11): N4.
- McLaughlin C: What do farmers want from their vet?. Cattle Pract. 2011, 19 (2): 141-143.
- Schemann K, Firestone SM, Taylor MR, Toribio JALML, Ward MP, Dhand NK: Horse owners’/managers’ perceptions about effectiveness of biosecurity measures based on their experiences during the 2007 equine influenza outbreak in Australia. Prev Vet Med. 2012, 106 (2): 97-101. 10.1016/j.prevetmed.2012.01.013.PubMedView Article
- Hernandez-Jover M, Gilmour J, Schembri N, Sysak T, Holyoake PK, Beilin R, Toribio J: Use of stakeholder analysis to inform risk communication and extension strategies for improved biosecurity amongst small-scale pig producers. Prev Vet Med. 2012, 104 (3–4): 258-270.PubMedView Article
- Savadori L, Savio S, Nicotra E, Rumiati R, Finucane M, Slovic P: Expert and public perception of risk from biotechnology. Risk Anal. 2004, 24 (5): 1289-1299. 10.1111/j.0272-4332.2004.00526.x.PubMedView Article
- Brennan ML, Christley RM: Biosecurity on cattle farms: a study in north-west England. PLoS One. 2012, 7 (1): e28139-10.1371/journal.pone.0028139.PubMedPubMed CentralView Article
- Kristensen E, Jakobsen EB: Challenging the myth of the irrational dairy farmer; understanding decision-making related to herd health. N Z Vet J. 2011, 59 (1): 1-7. 10.1080/00480169.2011.547162.PubMedView Article
- Boklund A, Alban L, Mortensen S, Houe H: Biosecurity in 116 Danish fattening swineherds: descriptive results and factor analysis. Prev Vet Med. 2004, 66 (1–4): 49-62.PubMedView Article
- Duncan AL: Health security in cattle herds. In Pract. 1990, 12 (1): 29-32. 10.1136/inpract.12.1.29.View Article
- Caldow GL, Crawshaw M, Gunn GJ: Herd health security in the suckler herd. Cattle Pract. 1998, 6 (3): 175-179.
- Brennan ML, Kemp R, Christley RM: Direct and indirect contacts between cattle farms in north-west England. Prev Vet Med. 2008, 84 (3–4): 242-260.PubMedView Article
- Brown PE, Christensen OF, Clough HE, Diggle PJ, Hart CA, Hazel S, Kemp R, Leatherbarrow AJH, Moore A, Sutherst J, Turner J, Williams NJ, Wright EJ, French NP: Frequency and spatial distribution of environmental Campylobacter spp. App Env Micro. 2004, 70 (11): 6501-6511. 10.1128/AEM.70.11.6501-6511.2004.View Article
- Brook E, Hart CA, French N, Christley R: Prevalence and risk factors for Cryptosporidium spp. infection in young calves. Vet Parasit. 2008, 152: 46-52. 10.1016/j.vetpar.2007.12.003.View Article
- Attride-Stirling J: Thematic networks: an analytic tool for qualitative research. Qual Res. 2001, 1 (3): 385-405. 10.1177/146879410100100307.View Article
- Braun V, Clarke V: Using thematic analysis in psychology. Qual Res Psych. 2006, 3 (2): 77-101. 10.1191/1478088706qp063oa.View Article
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