Effect of a test and control program for bovine Johne's disease in Victorian dairy herds 1992 ‐ 2002

Tf, Jubb; Jw, Galvin

doi:10.1111/j.1751-0813.2004.tb12685.x

Cited by 25 publications

(16 citation statements)

References 9 publications

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“…The level of adoption observed here was larger than other studies (Wraight et al, 2000;Jubb and Galvin, 2004;Ridge et al, 2005;Sorge et al, 2010b). However, it is important to note that behavior in this study was defined as the uptake or adoption of at least one on-farm management practice specifically for JD control, and as such there is no opportunity to assess the retention and sustainability of the behaviors that were reported to have changed.…”

Section: Study Limitationsmentioning

confidence: 80%

“…Although RA-based JD control programs have been widely implemented, their efficacy is largely dependent on the veterinarian's ability to communicate with his or her clients and the producer's willingness to adopt the recommended on-farm management practices for JD control (Sorge et al, 2010b). Several studies examining the uptake of on-farm management practices to control JD have reported poor producer uptake (Wraight et al, 2000;Jubb and Galvin, 2004;Ridge et al, 2005;Sorge et al, 2010b). This is likely due to the inability of the RA, and the veterinarian administering the RA, to address the factors associated with behavioral change (Sorge et al, 2010b).…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the effect of Focus Farms on Ontario dairy producers’ knowledge, attitudes, and behavior toward control of Johne’s disease

Roche

Jones‐Bitton

Meehan

et al. 2015

Journal of Dairy Science

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This study evaluated a participatory-based, experiential learning program, Ontario Focus Farms (FF), which aimed to change dairy producer behavior to control Johne's disease (JD) in Ontario, Canada. The goals were to (1) assess the effect of FF on participating dairy producers' knowledge, attitudes, and behavior with regard to JD control; (2) compare changes in these factors among FF participants to changes among a group of nonparticipating dairy producers; and (3) describe the characteristics of producers who made at least one on-farm management change. Pre- and post-FF intervention questionnaires collected data on respondents' knowledge, attitudes, behavior, herd production, and demographic information; before and after JD-risk assessments were used to assess respondents' on-farm risk of JD transmission. Overall, 176 dairy producers participated in the FF process; 39.8% (70/176) of FF and 14.6% (52/357) of control participants responded to both the pre- and postintervention questionnaires. Upon comparison, FF respondents were more likely to be younger, have larger herds, and have higher management scores. The proportion of FF participants who reported making at least one on-farm change (81%) was significantly higher than that of control respondents (38%). Overall, FF respondents significantly changed their risk score in 4 out of 5 risk areas and had an average reduction of 13 points in their overall risk score between before and after risk assessments. Control respondents' risk assessment scores did not significantly change during the study period. In a JD knowledge assessment, FF and control respondents exhibited a moderate knowledge score before the intervention period, with median scores of 75.9% (22/29) in each group. The FF respondents significantly increased their score at the postintervention assessment, with a median of 82.8% (24/29); control-respondent scores did not significantly change. Both FF and control respondents held strong positive attitudes toward JD control and felt a moderate amount of social pressure from veterinarians and industry organizations to make on-farm changes. However, they questioned their ability to effectively control JD on the farm. Last, participating in FF, having a moderate herd management score, having a positive perception about the practicality of on-farm recommendations, and having a singular learning preference were associated with increased odds of making an on-farm change. Overall, the FF process appears to be effective at influencing producer behavior toward implementing on-farm management practices for JD control. Future JD control programs should consider implementing peer-learning extension processes, such as FF, in combination with other extension approaches, to influence producer behavior.

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Section: Study Limitationsmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Evaluating the effect of Focus Farms on Ontario dairy producers’ knowledge, attitudes, and behavior toward control of Johne’s disease

Roche

Jones‐Bitton

Meehan

et al. 2015

Journal of Dairy Science

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“…Diagnostic tests have low sensitivity, especially in the early stages of the disease. The within‐herd prevalence is typically low in cattle . Practically, this means that the majority of farmers do not know precisely how or when infection first entered their herd and this obscures the full economic impact of the disease.…”

Section: Bjd In Australiamentioning

confidence: 99%

Farm economic impacts of bovine Johne's disease in endemically infected Australian dairy herds

SHEPHARD¹,

Williams²,

Beckett³

2016

Aust Veterinary J

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“…Several studies have investigated the control of PTB in affected dairy farms [7-12], but only a few in beef farms [13,14]. Both test-and-cull strategies and strategies of management improvement have been used in such control programs.…”

Section: Introductionmentioning

confidence: 99%

Observed management practices in relation to the risk of infection with paratuberculosis and to the spread of Mycobacterium avium subsp. paratuberculosisin Swiss dairy and beef herds

et al. 2014

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BackgroundMany studies have been conducted to define risk factors for the transmission of bovine paratuberculosis, mostly in countries with large herds. Little is known about the epidemiology in infected Swiss herds and risk factors important for transmission in smaller herds. Therefore, the presence of known factors which might favor the spread of paratuberculosis and could be related to the prevalence at animal level of fecal shedding of Mycobacterium avium subsp. paratuberculosis were assessed in 17 infected herds (10 dairy, 7 beef). Additionally, the level of knowledge of herd managers about the disease was assessed. In a case–control study with 4 matched negative control herds per infected herd, the association of potential risk factors with the infection status of the herd was investigated.ResultsExposure of the young stock to feces of older animals was frequently observed in infected and in control herds. The farmers’ knowledge about paratuberculosis was very limited, even in infected herds. An overall prevalence at animal level of fecal shedding of Mycobacterium avium subsp. paratuberculosis of 6.1% was found in infected herds, whereby shedders younger than 2 years of age were found in 46.2% of the herds where the young stock was available for testing. Several factors related to contamination of the heifer area with cows’ feces and the management of the calving area were found to be significantly associated with the within-herd prevalence. Animal purchase was associated with a positive herd infection status (OR = 7.25, p = 0.004).ConclusionsNumerous risk factors favoring the spread of Mycobacterium avium subsp. paratuberculosis from adult animals to the young stock were observed in infected Swiss dairy and beef herds, which may be amenable to improvement in order to control the disease. Important factors were contamination of the heifer and the calving area, which were associated with higher within-herd prevalence of fecal shedding. The awareness of farmers of paratuberculosis was very low, even in infected herds. Animal purchase in a herd was significantly associated with the probability of a herd to be infected and is thus the most important factor for the control of the spread of disease between farms.

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Effect of a test and control program for bovine Johne's disease in Victorian dairy herds 1992 ‐ 2002

Cited by 25 publications

References 9 publications

Evaluating the effect of Focus Farms on Ontario dairy producers’ knowledge, attitudes, and behavior toward control of Johne’s disease

Evaluating the effect of Focus Farms on Ontario dairy producers’ knowledge, attitudes, and behavior toward control of Johne’s disease

Farm economic impacts of bovine Johne's disease in endemically infected Australian dairy herds

Observed management practices in relation to the risk of infection with paratuberculosis and to the spread of Mycobacterium avium subsp. paratuberculosisin Swiss dairy and beef herds

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