Professor ANDREW BRADLEY's Outputs (33)

Molecular epidemiology of Streptococcus uberis clinical mastitis in dairy herds: strain heterogeneity and transmission (2015)
Journal Article
Davies, P., Archer, S. C., Emes, R. D., Bradley, A. J., Leigh, J., & Green, M. J. (2016). Molecular epidemiology of Streptococcus uberis clinical mastitis in dairy herds: strain heterogeneity and transmission. Journal of Clinical Microbiology, 54(1), https://doi.org/10.1128/JCM.01583-15

Multi Locus Sequence Typing was successfully completed on 494 isolates of S. uberis from clinical mastitis cases in a study of 52 commercial dairy herds over a 12 month period. In total, 195 sequence types (STs) were identified. S. uberis mastitis ca... Read More about Molecular epidemiology of Streptococcus uberis clinical mastitis in dairy herds: strain heterogeneity and transmission.

Recycling manure as cow bedding: potential benefits and risks for UK dairy farms (2015)
Journal Article
Lech, K. A., Archer, S. C., Breen, J. E., Green, M. J., Ohnstad, I. C., Tuer, S., & Bradley, A. J. (in press). Recycling manure as cow bedding: potential benefits and risks for UK dairy farms. Veterinary Journal, 206(2), https://doi.org/10.1016/j.tvjl.2015.08.013

Material obtained from physical separation of slurry (recycled manure solids; RMS) has been used as bedding for dairy cows in dry climates in the US since the 1970s. Relatively recently, the technical ability to produce drier material has led to adop... Read More about Recycling manure as cow bedding: potential benefits and risks for UK dairy farms.

An investigation of the dynamics of intramammary infections acquired during the dry period on European dairy farms (2015)
Journal Article
Bradley, A. J., De Vliegher, S., Green, M. J., Larrosa, P., Payne, B., van de Leemput, E. S., Samson, O., Valckenier, D., Van Werven, T., Waldeck, H., White, V., & Goby, L. (2015). An investigation of the dynamics of intramammary infections acquired during the dry period on European dairy farms. Journal of Dairy Science, 98(9), https://doi.org/10.3168/jds.2014-8749

The dry period is acknowledged as playing a key role in mastitis epidemiology and yet surprisingly few studies have explored dry period infection dynamics in detail. The aim of this study was to investigate the dynamics of intramammary infection acro... Read More about An investigation of the dynamics of intramammary infections acquired during the dry period on European dairy farms.

Dairy herd mastitis and reproduction: using simulation to aid interpretation of results from discrete time survival analysis (2015)
Journal Article
Hudson, C. D., Bradley, A. J., Breen, J. E., & Green, M. J. (2015). Dairy herd mastitis and reproduction: using simulation to aid interpretation of results from discrete time survival analysis. Veterinary Journal, 204(1), https://doi.org/10.1016/j.tvjl.2015.01.024

Probabilistic sensitivity analysis (PSA) is a simulation-based technique for evaluating the relative importance of different inputs to a complex process model. It is commonly employed in decision analysis and for evaluation of the potential impact of... Read More about Dairy herd mastitis and reproduction: using simulation to aid interpretation of results from discrete time survival analysis.

An investigation of the efficacy of a polyvalent mastitis vaccine using different vaccination regimens under field conditions in the United Kingdom (2014)
Journal Article
Bradley, A., Breen, J., Payne, B., White, V., & Green, M. (2015). An investigation of the efficacy of a polyvalent mastitis vaccine using different vaccination regimens under field conditions in the United Kingdom. Journal of Dairy Science, 98(3), https://doi.org/10.3168/jds.2014-8332

Vaccination can play a useful role in mastitis control programs, although there is a relative dearth of large, well-controlled field efficacy studies. This paper presents the findings on the use of a commercially available vaccine (Startvac, Hipra UK... Read More about An investigation of the efficacy of a polyvalent mastitis vaccine using different vaccination regimens under field conditions in the United Kingdom.

Effect of extended cefquinome treatment on clinical persistence or recurrence of environmental clinical mastitis (2013)
Journal Article
Swinkels, J., Lam, T., Green, M. J., & Bradley, A. J. (2013). Effect of extended cefquinome treatment on clinical persistence or recurrence of environmental clinical mastitis. Veterinary Journal, 197(3), https://doi.org/10.1016/j.tvjl.2013.03.010

The effectiveness of antibiotic treatment of clinical mastitis (CM) is classically evaluated using bacteriological cure, which provides a concise and objective way of assessing efficacy but does not reflect the situation in the field where persistenc... Read More about Effect of extended cefquinome treatment on clinical persistence or recurrence of environmental clinical mastitis.

Dairy herd health (2012)
Book
Green, M., Bradley, A., Breen, J., Green, L., Hayton, A., Higgins, H., Hudson, C., Huxley, J., & Statham, J. (Eds.). (2012). Dairy herd health. CABI

Dairy herd health is an important and universal topic in large animal veterinary practice and farming, covering both preventive medicine and health promotion. With the move towards large-scale farming, the health of the herd is important as an econom... Read More about Dairy herd health.

Associations between udder health and reproductive performance in United Kingdom dairy cows (2012)
Journal Article
Hudson, C., Bradley, A. J., Breen, J., & Green, M. J. (2012). Associations between udder health and reproductive performance in United Kingdom dairy cows. Journal of Dairy Science, 95(7), https://doi.org/10.3168/jds.2011-4629

The objective of this research was to evaluate the relationship between udder health and reproductive performance in UK dairy cows. Data from 80 herds were restructured such that each unit of data represented a 2-d period during lactation where a cow... Read More about Associations between udder health and reproductive performance in United Kingdom dairy cows.

A comparison of broad-spectrum and narrow-spectrum dry cow therapy used alone and in combination with a teat sealant (2011)
Journal Article
Bradley, A. J., Breen, J., Payne, B., & Green, M. J. (2011). A comparison of broad-spectrum and narrow-spectrum dry cow therapy used alone and in combination with a teat sealant. Journal of Dairy Science, 94(2), https://doi.org/10.3168/jds.2010-3192

The dry period is a critical time in the lactation cycle, offering the optimum time for cure of existing intramammary infection (IMI), while also encompassing the periods of highest susceptibility to new intramammary infection. Until recent years, in... Read More about A comparison of broad-spectrum and narrow-spectrum dry cow therapy used alone and in combination with a teat sealant.

Management interventions in dairy herds: exploring within herd uncertainty using an integrated Bayesian model (2009)
Journal Article
Green, M. J., Medley, G. F., Bradley, A. J., & Browne, W. J. (2009). Management interventions in dairy herds: exploring within herd uncertainty using an integrated Bayesian model. Veterinary Research, 41(2), Article Article 22. https://doi.org/10.1051/vetres/2009070

Knowledge of the efficacy of an intervention for disease control on an individual farm is
essential to make good decisions on preventive healthcare, but the uncertainty in outcome associated with
undertaking a specific control strategy has rarely b... Read More about Management interventions in dairy herds: exploring within herd uncertainty using an integrated Bayesian model.

Bayesian analysis of a mastitis control plan to investigate the influence of veterinary prior beliefs on clinical interpretation (2009)
Journal Article
Green, M. J., Browne, W. J., Green, L., Bradley, A. J., Leach, K., Breen, J., & Medley, G. F. (2009). Bayesian analysis of a mastitis control plan to investigate the influence of veterinary prior beliefs on clinical interpretation. Preventive Veterinary Medicine, 91(2-4), https://doi.org/10.1016/j.prevetmed.2009.05.029

The fundamental objective for health research is to determine whether changes should be made to clinical decisions. Decisions made by veterinary surgeons in the light of new research evidence are known to be influenced by their prior beliefs, especia... Read More about Bayesian analysis of a mastitis control plan to investigate the influence of veterinary prior beliefs on clinical interpretation.

Cow, farm, and herd management factors in the dry period associated with raised somatic cell counts in early lactation (2008)
Journal Article
Green, M. J., Medley, G. F., Browne, W. J., & Bradley, A. J. (2008). Cow, farm, and herd management factors in the dry period associated with raised somatic cell counts in early lactation. Journal of Dairy Science, 91(4), https://doi.org/10.3168/jds.2007-0621

This study investigated cow characteristics, farm facilities, and herd management strategies during the dry period to examine their joint influence on somatic cell counts (SCC) in early lactation. Data from 52 commercial dairy farms throughout Englan... Read More about Cow, farm, and herd management factors in the dry period associated with raised somatic cell counts in early lactation.

Cow, farm, and management factors during the dry period that determine the rate of clinical mastitis after calving (2007)
Journal Article
Green, M. J., Bradley, A. J., Medley, G. F., & Browne, W. J. (2007). Cow, farm, and management factors during the dry period that determine the rate of clinical mastitis after calving. Journal of Dairy Science, 90(8), https://doi.org/10.3168/jds.2007-0107

The purpose of the research was to investigate cow characteristics, farm facilities, and herd management strategies during the dry period to examine their joint influence on the rate of clinical mastitis after calving. Data were collected over a 2-yr... Read More about Cow, farm, and management factors during the dry period that determine the rate of clinical mastitis after calving.