Investigating tools to assist dairy farmers in identifying the causes of lameness in dairy cows
Foot lesions causing lameness in dairy cows are a major source of production and economic losses and affect the welfare of dairy cows. The literature suggests that dairy farmers often diagnose and treat lame cows without expert opinion or assistance. Although there is a paucity of research regarding dairy farmers’ ability to diagnose and treat foot lesions, the high culling rates associated with lameness may indicate poor diagnosis or treatment. Therefore, research into tools to assist dairy farmers in identifying the causes of lameness in dairy cows is a priority. The broad aims of this thesis were to: i) conduct a systematic review of tests described in the literature for the detection of lameness and the diagnosis of foot lesions, ii) determine dairy farmer ability to correctly diagnose and treat foot lesions, iii) investigate the potential for simple mobile phone technology to be used as a remote consultation tool between dairy farmers and veterinarians, and iv) investigate the beliefs underlying dairy farmer intentions to improve their management practices of foot lesions causing lameness.The systematic review identified a number of tests for the detection of lameness, foot lesions, sole ulcers and digital dermatitis. No tests were identified for the diagnosis of specific foot lesions. Key objectives of this study were to assess the methodological quality of the included studies, compare the performance of the identified tests using reported sensitivity and specificity values, and subsequently make recommendations regarding suitability for implementation on farm. However, none of the tests reviewed and assessed could be recommended due to incomplete reporting of pertinent information and significant risk of bias in all studies. A key recommendation from this study is that authors of future studies in this field should use the STARD guidelines. This would enable thorough evaluation of future tests.Data were acquired from a previously conducted observational study to determine dairy farmer ability to correctly diagnose and treat foot lesions and to introduce the concept of a tele-foot-health system, where digital images of foot lesions were sent to a remote veterinarian for assessment. Diagnostic agreement was assessed between two sets of raters, an on-site (farm) veterinarian and a dairy farmer and the farm veterinarian and a remote veterinarian, for four criteria: body region, tissue, diagnosis and treatment. Overall, the farm veterinarian and dairy farmer demonstrated weak to almost perfect agreement, whereas the farm veterinarian and remote veterinarian demonstrated moderate to almost perfect agreement. For the farm veterinarian and dairy farmer, weak levels of agreement for diagnosis and treatment suggest that the dairy farmer may need more assistance in diagnosing and treating the foot lesions occurring in their herd. The moderate to almost perfect agreement achieved between the farm veterinarian and remote veterinarian indicates the potential for success of the proposed tele-foot-health system. More research is needed to further investigate and validate its use.The final research chapter used a questionnaire based on a social–psychology framework, the Theory of Planned Behaviour. In brief, such studies identify individuals’ key behavioural, normative and control beliefs in relation to the behaviour of interest and assess the associations between the beliefs and intention to perform the behaviour. This study identified that dairy farmers believed improving their current management practices of foot lesions would improve animal welfare, increase milk production and was worth the cost involved (behavioural beliefs). Dairy farmers indicated that the opinions of consumers, staff, and animal welfare groups were important in their decision to make improvements (normative beliefs). Better equipment and facilities, improved knowledge and training, and a favourable cost benefit ratio were perceived as factors that would enable dairy farmers to improve their management practices (control beliefs). While all of these beliefs may be considered as potential drivers to facilitate positive behavioural change, the behavioural beliefs were identified as the priority beliefs that industry should target in the development of strategies to increase dairy farmer intentions to make improvements to their current management practices of foot lesions.This thesis has demonstrated that dairy farmers need support for diagnosing the foot lesions that affect the dairy cows in their herds. While no tools of this nature currently exist, the tele-foot-health system introduced in this thesis offers a possible solution to assist dairy farmers in both the diagnosis and treatment of foot lesions. However, further research is required to fully support its implementation on the farm. To support the uptake of tools like this, this thesis demonstrates the importance of targeting dairy farmer behavioural beliefs in the development of strategies to promote improved dairy cow foot health. In conclusion, this thesis has provided direction for further research into tools to aid dairy farmers in improving their management of foot lesions causing lameness in their dairy herds.
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21
- 10.1016/j.prevetmed.2019.104767
- Sep 3, 2019
- Preventive Veterinary Medicine
Understanding dairy farmer intentions to make improvements to their management practices of foot lesions causing lameness in dairy cows
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15
- 10.1016/j.prevetmed.2017.11.003
- Nov 4, 2017
- Preventive veterinary medicine
A systematic review of tests for the detection and diagnosis of foot lesions causing lameness in dairy cows
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226
- 10.1016/j.compedu.2012.04.001
- Apr 16, 2012
- Computers & Education
Exploring pre-service teachers' beliefs about using Web 2.0 technologies in K-12 classroom
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3
- 10.1155/2024/2732333
- Jan 1, 2024
- Veterinary Medicine International
Lameness is one of the greatest constraints on the productivity, health, and welfare of dairy cattle. A cross-sectional study was carried out from March 2021 to September 2021 in Hawassa town with the aim of assessing the prevalence and identifying the associated risk factors of lameness in dairy farms. The study was conducted on 440 animals belonging to 19 randomly selected intensive dairy farms. Data regarding lameness and its possible risk factors were collected both at animal and farm level using a questionnaire. The results showed that the overall prevalence of lameness was 10.2% (n = 45/440). The association of lameness prevalence with various risk factors including milking status, exercise, age, parity, milk yield, and lactation stage was statistically tested using logistic regression model. There was a significant variation in the prevalence of lameness (P < 0.05) between cattle with different milking status, age, parity, milk yield, and stage of lactation by the univariable analysis result. According to the multivariable analysis, only milk yield and lactation stage were statistically associated with the occurrence of lameness. Milking animals (8%) had higher prevalence of lameness than nonmilking (2.2%). The occurrence of lameness increased with milk yield. The highest prevalence of lameness was recorded in the early stage of lactation. Lameness was more frequent in hind limbs (6.6%) than in forelimbs (3.6%). The main causes of lameness observed in this study were both claw overgrowth 10 (2.3%), unequal claw size 10 (2.3%), solar ulcer 8 (1.8%), interdigital necrobacillosis 2 (0.5%), interdigital hyperplasia 2 (0.5%), and digital dermatitis 1 (0.2%). There was no means of early lameness diagnosis in 94.7% of farms. Lameness was found to be an important disease in dairy cows at Hawassa town. Prevention and early diagnosis leading to prompt treatment of lameness in cows should be part of dairy farm management practice.
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1
- 10.1016/j.childyouth.2022.106693
- Oct 15, 2022
- Children and Youth Services Review
BackgroundParenting support guidelines for public health nurses have shifted from a problem-focused to a solution-focused approach. Given the fundamental differences between these two approaches, implementation of solution-focused parenting support is assumed to be difficult. Since the way public health nurses provide parenting support is largely guided by their beliefs, knowledge about their beliefs concerning solution-focused parenting support is important for its actual implementation. This study aims to explore the behavioral, normative, and control beliefs of public health nurses about solution-focused parenting support for future design of implementation interventions and related research activities. MethodsA theory of planned behavior questionnaire was systematically developed and tested using focus groups. Thematic analysis and nominal group technique were used to analyze the data and to reach consensus. Next, this questionnaire was conducted among 449 public health nurses in the Netherlands. Factor analysis and descriptive statistical analysis were performed. ResultsFactor analysis resulted in three distinguishing subscales: behavioral beliefs (α = 0.79), normative beliefs (α = 0.80), and control beliefs (α = 0.64). Beliefs of public health nurses about solution-focused parenting support were moderately positive to positive (means varying from 4.24 to 5.54, on a 1–7 scale), and differences were statistically significant for various background variables. Control beliefs were less positive than behavioral and normative beliefs. Public health nurses trained in solution-focused parenting support reported more positive control beliefs (M = 4.34, SD = 0.83) as compared to untrained public health nurses (M = 4.00, SD = 0.82). ConclusionThis study is the first to provide insight into public health nurses’ beliefs about solution-focused parenting support. The overall moderately positive to positive beliefs of PHNs about solution-focused parenting support suggests that PHNs tend to accept solution-focused parenting support as a viable approach. Compared to behavioral and normative beliefs, PHNs score the lowest on control beliefs.
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44
- 10.1348/135910708x339542
- Sep 1, 2009
- British Journal of Health Psychology
To use a theory of planned behaviour (TPB) framework to explore the beliefs underlying communication of the donation decision for people who had not previously registered their consent on a donor register or discussed their decision with significant others. Initially, a focus group study elicited the common TPB (behavioural, normative, and control) beliefs about registering and discussing the organ donation decision. The main study assessed the important TPB belief predictors of intentions to register and discuss the donation decision. University students and community members from Queensland, Australia (N=123) completed items assessing their intentions and the TPB behavioural, normative, and control beliefs for registering and discussing their donation decision. Structural equation modelling (SEM) analyses revealed significant paths between people's intentions to register their donation decisions and underlying behavioural (e.g. enabling efficient donation procedures), normative (e.g. friends, doctors/medical professionals), and control (e.g. lack of motivation, knowing details about transplant recipients) beliefs (R2=.30). There were also significant paths between people's intentions to discuss their donation decision and underlying behavioural (e.g. feeling uncomfortable talking about death related topics) and normative (e.g. partner/spouse, family members) beliefs, but not control beliefs (R2=.33). There was a significant path between intentions to register and intentions to discuss one's donation decision. Results highlight the importance of focusing on behavioural and normative beliefs about communicating the donation decision, specifically for people who have not previously communicated their decision, and suggest potential targets for interventions designed to promote decision communication.
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920
- 10.1080/01490409109513137
- Jan 1, 1991
- Leisure Sciences
The theory of planned behavior (Ajzen 1985, 1987) is offered as a comprehensive framework for understanding of leisure participation. Salient behavioral, normative, and control beliefs, theoretically the basic determinants of behavior, were assessed with respect to five leisure activities: spending time at the beach, jogging or running, mountain climbing, boating, and biking. College students completed a questionnaire containing measures of these beliefs and of global expressions of attitude, subjective norm, and perceived behavioral control. One year later the participants reported how often they had performed each behavior in the preceding 12 months. Behavioral beliefs were found to partition into beliefs about affective reactions and beliefs about costs and benefits. Participation in leisure activities was influenced by these affective and instrumental beliefs, as well as by normative beliefs about the expectations of important others and by control beliefs about required resources and other f...
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49
- 10.1016/j.jsams.2010.07.004
- Aug 30, 2010
- Journal of Science and Medicine in Sport
Identifying key belief-based targets for promoting regular physical activity among mothers and fathers with young children
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46
- 10.1017/s0962728600001901
- Nov 1, 2010
- Animal Welfare
Lameness is one of the greatest infringements of welfare in dairy cows. The objective of this study was to investigate associations between milk yield and foot lesions causing lameness in Chilean dairy cattle with the hypothesis that if we can demonstrate that lameness reduces yield, and so income, from lame dairy cows then we have both economic and welfare arguments for reducing lameness in dairy cattle. For one year, all lame cows from seven farms with Holstein Friesian cattle were treated by their herdsmen. Herdsmen were trained by the researcher and a colour atlas was utilised to assist in diagnosis of lesions. All abnormalities on the foot and the suspected cause of lameness were recorded, and cattle were treated. A two-level hierarchical model with repeated monthly test-day yields within cows was used to investigate the impact of double sole (DS), sole ulcer (SU), white line disease (WLD), digital dermatitis (DD) and all ‘other’ causes of lameness on milk yield before and after treatment. There were 1,635 cows with complete data. Cattle with a DS were higher yielding than cattle that were never lame with a reduction in yield from four months before treatment. Cattle lame with DD were higher yielding than non-lame cattle before and after treatment. For all causes of lameness, yield increased the month after treatment. We conclude that lesions causing lameness reduced the milk yield of dairy cows in these seven herds in Chile. We discuss the current evidence base for prevention of lameness in dairy cows and hypothesise that rapid treatment is a feasible current approach to improve cow welfare immediately and probably reduce milk lost; more evidence for effective prevention is required.
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213
- 10.1176/ps.2007.58.10.1358
- Oct 1, 2007
- Psychiatric Services
This study assessed beliefs about mental health treatment in a group of soldiers newly returning from the war in Iraq. Participants were 20 National Guard soldiers who had served in Operation Iraqi Freedom. Soldiers who in phone interviews screened positive for a mental disorder were asked about advantages and disadvantages of seeking treatment, who would or would not support treatment seeking, and facilitators and barriers to treatment seeking. Stigma was portrayed as a major disadvantage to treatment seeking. Yet most participants indicated that people would be supportive of treatment seeking. Reducing symptoms was a major advantage of care. Barriers, especially those viewed as "self-induced," such as pride, not being able to ask for help, and not being able to admit to having a problem, were considered major impediments. The findings suggest that interventions developed to engage veterans in care must be directed toward cognitive factors that motivate treatment seeking.
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2
- 10.23887/jpi-undiksha.v10i3.29812
- Oct 18, 2021
- JPI (Jurnal Pendidikan Indonesia)
Beliefs take a vital role in influencing students' decision about integrating digital literacy in EFL classroom. This case study investigated students' behavioral, control, and normative beliefs toward integrating digital literacy into the EFL classroom. This research used the Theory of Planned Behavior initiated by Ajzen to collect and analyze the data. The results of interviews and observations highlighted students' integration of digital literacy into EFL classroom referred to several beliefs. The behavioral beliefs (attitude toward advantages of a behavior) about the value of digital literacy for its effectiveness and efficiency potential to find information, to promote students cognitive skills and ethical awareness, and to improve English proficiency; normative beliefs (about social support) about the meeting of the expectation of school, teachers, parents, and friends; and control beliefs (about perceive behavioral control) about the opportunity and the availability to interact with the technology. This study highlighted a substantive theory related to the findings: Students' positive beliefs about integrating digital literacy into EFL classroom influence students' learning strategy. By having positive beliefs about the outcomes that students will get (behavioral beliefs), support from family, teachers, and the school environment (normative beliefs), as well as beliefs about the presence of factors that may facilitate or hinder the performance (control beliefs), students demonstrate the tendency to always use digital technology in learning English.
- Research Article
74
- 10.3390/ani5030369
- Jul 13, 2015
- Animals
Simple SummaryDairy cow lameness is a major problem for the industry, causing reduced animal welfare and economic loss. Digital dermatitis (DD) is a bacterial disease causing painful lesions, generally on the heels of the rear feet, and is an important cause of lameness. There appears to be individual variation between animals in susceptibility to this disease. Particular physical, physiological and behavioural factors might influence individual susceptibility, but further work is required to clarify the influence of these factors and to determine how this information could be used to develop breeding and management strategies to reduce DD prevalence.Digital dermatitis (DD) is a bacterial disease that primarily affects the skin on the heels of cattle. It is a major cause of lameness in dairy cows and a significant problem for the dairy industry in many countries, causing reduced animal welfare and economic loss. A wide range of infection levels has been found on infected farms, prompting investigations into both farm level and animal level risk factors for DD occurrence. There also appears to be individual variation between animals in susceptibility to the disease. The identification of factors affecting individual variation in susceptibility to DD might allow changes in breeding policies or herd management which could be used to reduce DD prevalence. Factors mentioned in the literature as possibly influencing individual variation in susceptibility to DD include physical factors such as hoof conformation and properties of the skin, physiological factors such as the efficacy of the immune response, and behavioural factors such as standing half in cubicles. Further work is required to determine the influence of these factors, identify the genetic basis of variation, clarify the level of heritability of DD susceptibility and to determine how this is correlated with production and health traits currently used in breeding programmes.
- Abstract
1
- 10.1016/j.jneb.2016.04.111
- Jun 30, 2016
- Journal of Nutrition Education and Behavior
Assessing the Construct Validity of Healthful Eating Belief Scales Among Southeastern United States Office Workers
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1
- 10.1590/0034-7167-2021-0617
- Jan 1, 2023
- Revista brasileira de enfermagem
to analyze the psychosocial factors correlated with the behavioral intention of people with Type 2 Diabetes Mellitus (T2DM) towards insulin use. a cross-sectional study; a validated instrument based on the Theory of Planned Behavior was used to identify the direct measures (attitude, subjective norm and perceived control), indirect measures (behavioral, normative and control beliefs) and behavioral intention for the use of insulin. Descriptive analysis and Spearman's correlation were performed for data analysis. a total of 211 individuals participated in the study, with a positive median of behavioral intention. Attitude, normative and behavioral beliefs were the psychosocial factors that presented a significant correlation (r=0.16, r=-0,15 and r=0.25, respectively; p<0.05) with the intention. there is a positive behavioral intention in the use of insulin by people with T2DM. Attitude, normative beliefs and behavioral beliefs have a low magnitude correlation with the intention of people with T2DM to use insulin.
- Research Article
240
- 10.1086/521663
- Nov 1, 2007
- Infection Control & Hospital Epidemiology
To quantify the different behavioral components of healthcare workers' motivation to comply with hand hygiene in a healthcare institution with a 10-year history of hand hygiene campaigning. Cross-sectional study, by use of an anonymous, self-administered questionnaire. A 2,200-bed university teaching hospital. A stratified random sample of 2,961 medical and nursing staff. A total of 1,042 questionnaires (35.2%) were returned. Of the respondents, 271 (26.0%) were physicians, 629 (60.4%) were nurses, and 141 (13.5%) were nursing assistants. Overall, 1,008 respondents provided information about sex; 718 (71.2%) of these were women. Respondents provided demographic information and data about various behavioral, normative, and control beliefs that determined their intentions with respect to performing hand hygiene. Among behavioral beliefs, the perception that healthcare-associated infections are severe for patients was highly ranked as a determinant of behavior by 331 (32.1%) of the respondents, and the perception that hand hygiene is effective at preventing these infections was ranked highly by 891 respondents (86.0%). Among normative beliefs, perceived social pressure from patients to perform hand hygiene was ranked highly by 760 respondents (73.7%), pressure from superiors was ranked highly by 687 (66.8%), pressure from colleagues was ranked highly by 596 (57.9%), and pressure from the person perceived to be most influential was ranked highly by 687 (68.8%). Among control beliefs, the perception that hand hygiene is relatively easy to perform was rated highly by 670 respondents (65.1%). High self-reported rates of adherence to hand hygiene (defined as performance of proper hand hygiene during 80% or more of hand hygiene opportunities) was independently associated with female sex, receipt of training in hand hygiene, participation in a previous hand hygiene campaign, peer pressure from colleagues, perceived good adherence by colleagues, and the perception that hand hygiene is relatively easy to perform. In a setting with a long tradition of hand hygiene campaigns, behavioral beliefs are strongly in favor of hand hygiene, but adherence is driven by peer pressure and the perception of high self-efficacy, rather than by reasoning about the impact of hand hygiene on patient safety. Female sex, training, and campaign exposure increased the likelihood of compliance with hand hygiene. This additional insight can help to shape future promotional activity.