Search Results - "Clegg, T. A"

Recent spatial changes in bovine tuberculosis in the Republic of Ireland by McGrath, G., Clegg, T. A, More, S. J

“…There has been a steady reduction in the levels of bovine tuberculosis (bTB) in Ireland for some years. This paper presents a number of methods employing…”
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The comparative performance of the single intradermal comparative tuberculin test in Irish cattle, using tuberculin PPD combinations from different manufacturers by Good, M., Clegg, T.A., Murphy, F., More, S.J.

“…Ireland currently obtains its avian and bovine tuberculin purified protein derivatives (PPDs) from a single source. Because problems of supply or quality…”
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The impact of badger removal on the control of tuberculosis in cattle herds in Ireland by Griffin, J.M., Williams, D.H., Kelly, G.E., Clegg, T.A., O’Boyle, I., Collins, J.D., More, S.J.

“…In Ireland, the herd prevalence of bovine tuberculosis has remained stable for several decades, and in common with several other countries, progress towards…”
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Characteristics of Mycobacterium bovis infected herds tested with the interferon-gamma assay by Clegg, T.A., Doyle, M., Ryan, E., More, S.J., Gormley, E.

“…The IFN-γ (interferon gamma) assay is used in Ireland as an ancillary diagnostic test to the single intradermal comparative tuberculin test (SICTT) to maximise…”
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Eradicating BVD, reviewing Irish programme data and model predictions to support prospective decision making by Thulke, H.-H., Lange, M., Tratalos, J.A., Clegg, T.A., McGrath, G., O’Grady, L., O’Sullivan, P., Doherty, M.L., Graham, D.A., More, S.J.

“…•Multi-source research supports the strategic eradication of Bovine Viral Diarrhoea virus (BVDV) from Irish cattle population.•International experience,…”
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Future risk of bovine tuberculosis recurrence among higher risk herds in Ireland by Clegg, T.A., Good, M., More, S.J.

“…Within the Irish national bovine tuberculosis (bTB) eradication programme, controls are tighter on higher risk herds, known as H-herds. These H-herds are…”
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The performance of the interferon gamma assay when used as a diagnostic or quality assurance test in Mycobacterium bovis infected herds by Clegg, T.A., Good, M., Doyle, M., Duignan, A., More, S.J., Gormley, E.

“…There are two different contexts in the Irish bTB eradication programme in which the interferon-gamma assay (IFN-γ) is applied. Firstly, the IFN-γ assay is…”
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Risk factors for cattle presenting with a confirmed bTB lesion at slaughter, from herds with no evidence of within-herd transmission by Clegg, T.A., Good, M., More, S.J.

“…•Abattoir surveillance for bTB is conducted on all slaughtered cattle in Ireland.•∼80% of breakdowns started by a bTB-lesion animal have no within-herd…”
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Temporal trends in the retention of BVD+ calves and associated animal and herd-level risk factors during the compulsory eradication programme in Ireland by Clegg, T.A., Graham, D.A., O’Sullivan, P., McGrath, G., More, S.J.

“…•A voluntary BVD eradication programme began in 2012, becoming compulsory in 2013.•The programme relies on identification and prompt removal of BVD+ calves.•A…”
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Quantifying the risk of spread of bovine viral diarrhoea virus (BVDV) between contiguous herds in Ireland by Graham, D.A., Clegg, T.A., Thulke, H.-H., O’Sullivan, P., McGrath, G., More, S.J.

“…•Contiguous spread is likely an important problem in the Irish BVD eradication programme.•The risk of BVD spread between contiguous farms has not previously…”
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Survival time of calves with positive BVD virus results born during the voluntary phase of the Irish eradication programme by Graham, D.A., Clegg, T.A., O'Sullivan, P., More, S.J.

“…•We conducted a study on the survival of BVD virus-positive calves.•Modelling identified BVD status and county as key factors associated with survival.•The…”
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The relative effectiveness of testers during field surveillance for bovine tuberculosis in unrestricted low-risk herds in Ireland by Clegg, T.A., Duignan, A., More, S.J.

“…In Ireland, new bovine tuberculosis (bTB) cases are detected using both field and abattoir surveillance. Field surveillance is conducted on all cattle annually…”
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Comparison of bovine tuberculosis recurrence in Irish herds between 1998 and 2008 by Gallagher, M.J., Higgins, I.M., Clegg, T.A., Williams, D.H., More, S.J.

“…During the last several decades in Ireland, there has been substantial scientific progress in our understanding and related policy changes in the bovine…”
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Influence of the retention of PI calves identified in 2012 during the voluntary phase of the Irish national bovine viral diarrhoea virus (BVDV) eradication programme on herd-level outcomes in 2013 by Graham, D.A., Clegg, T.A., O’Sullivan, P., More, S.J.

“…•The herd level impact of retaining calves with positive BVDV results was modelled.•Retention of BVD+ calves was significantly associated with herds being…”
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Herd-level factors associated with the presence of bovine viral diarrhoea virus in herds participating in the voluntary phase of the Irish national eradication programme by Graham, D.A., Clegg, T.A., Lynch, M., More, S.J.

“…A risk factor study was conducted to identify variables associated with initial positive or inconclusive results for bovine viral diarrhoea virus (BVDV) in ear…”
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The effect of somatic cell count data adjustment and interpretation, as outlined in European Union legislation, on herd eligibility to supply raw milk for processing of dairy products by More, S J, Clegg, T A, Lynch, P J, O'Grady, L

“…Somatic cell count (SCC) limits are a key component of national and international regulation for milk quality. As yet, very limited work has been published on…”
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Impact of the national full herd depopulation policy on the recurrence of bovine tuberculosis in Irish herds, 2003 to 2005 by Good, M., Clegg, T. A., Duignan, A., More, S. J.

“…This study evaluated the impact of the Irish herd bovine tuberculosis (bTB) depopulation policy (depopulation, disinfection, contiguous testing and local…”
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Shorter-term risk of Mycobacterium bovis in Irish cattle following an inconclusive diagnosis to the single intradermal comparative tuberculin test by Clegg, T.A., Good, M., Duignan, A., Doyle, R., More, S.J.

“…In Ireland, new cases of bovine tuberculosis (bTB) are detected using both field and abattoir surveillance ( More and Good, 2006). Field surveillance is…”
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Evaluation of single reactor bovine tuberculosis breakdowns based on analysis of reactors slaughtered at an Irish export meat plant by Murray, D., Clegg, T. A., More, S. J.

“…The ‘Singleton Protocol’ was adopted by the Irish Department of Agriculture Fisheries and Food (DAFF) in 1996 to address the incomplete specificity of the…”
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Longer-term risk of Mycobacterium bovis in Irish cattle following an inconclusive diagnosis to the single intradermal comparative tuberculin test by Clegg, T.A., Good, M., Duignan, A., Doyle, R., Blake, M., More, S.J.

“…In Ireland, new bovine tuberculosis (bTB) cases are detected using both field and abattoir surveillance. During field surveillance, an animal may be deemed a…”
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