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Randomized controlled field trial comparing quarter and cow level selective dry cow treatment using the California Mastitis Test (2021)
Journal Article
Swinkels, J., Leach, K., Breen, J., Payne, B., White, V., Green, M., & Bradley, A. (2021). Randomized controlled field trial comparing quarter and cow level selective dry cow treatment using the California Mastitis Test. Journal of Dairy Science, 104(8), 9063-9081. https://doi.org/10.3168/jds.2020-19258

Selective use of antibiotic dry cow treatment can be implemented at the cow or quarter level, with the latter having the potential to further reduce antibiotic use. Our objective was to compare these 2 approaches in 6 herds in the United Kingdom in w... Read More about Randomized controlled field trial comparing quarter and cow level selective dry cow treatment using the California Mastitis Test.

The impact of dairy cows' bedding material and its microbial content on the quality and safety of milk: a cross sectional study of UK farms (2017)
Journal Article
Bradley, A. J., Leach, K. A., Green, M. J., Gibbons, J., Ohnstad, I. C., Black, D. H., …Breen, J. E. (in press). The impact of dairy cows' bedding material and its microbial content on the quality and safety of milk: a cross sectional study of UK farms. International Journal of Food Microbiology, https://doi.org/10.1016/j.ijfoodmicro.2017.12.022

The introduction of bedding dairy cows on recycled manure solids (RMS) in the UK led to concern by competent authorities that there could be an increased, unacceptable risk to animal and human health. A cross-sectional study was designed to evaluate... Read More about The impact of dairy cows' bedding material and its microbial content on the quality and safety of milk: a cross sectional study of UK farms.

A Bayesian micro-simulation to evaluate the cost-effectiveness of interventions for mastitis control during the dry period in UK dairy herds (2016)
Journal Article
Down, P., Bradley, A., Breen, J., Browne, W., Kypraios, T., & Green, M. (2016). A Bayesian micro-simulation to evaluate the cost-effectiveness of interventions for mastitis control during the dry period in UK dairy herds. Preventive Veterinary Medicine, 133, 64-72. https://doi.org/10.1016/j.prevetmed.2016.09.012

Importance of the dry period with respect to mastitis control is now well established although the precise interventions that reduce the risk of acquiring intramammary infections during this time are not clearly understood. There are very few interve... Read More about A Bayesian micro-simulation to evaluate the cost-effectiveness of interventions for mastitis control during the dry period in UK dairy herds.

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.

Dairy herd health (2012)
Book
Green, M., Bradley, A., Breen, J., Green, L., Hayton, A., Higgins, H., …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.

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.