Biosecurity and Risk Management for Dairy Replacements

Maunsell, Fiona P.; Donovan, G. A.

doi:10.1016/j.cvfa.2007.10.007

Cited by 57 publications

(61 citation statements)

References 126 publications

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“…cows and heifers) may be an important mode of Salmonella transmission. A study on biosecurity and risk management practices on dairy replacement rearing units in the United States by Maunsell and Donovan (2008) identified the minimisation of direct and indirect contact between different age groups of cattle as a practice to prevent new infections occurring in young stock. Grazing of heifers on cows pasture in such livestock systems should therefore be avoided to prevent new infections occurring in young stock.…”

Section: Discussionmentioning

confidence: 99%

Management practices as risk factors for the presence of bulk milk antibodies to Salmonella, Neospora caninum and Leptospira interrogans serovar hardjo in Irish dairy herds

Doherty

Berry

Grady

et al. 2014

Animal

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A survey of management practices in 309 Irish dairy herds was used to identify risk factors for the presence of antibodies to Salmonella, Neospora caninum and Leptospira interrogans serovar hardjo in extensively managed unvaccinated dairy herds. A previous study documented a herd-level seroprevalence in bulk milk of 49%, 19% and 86% for Salmonella, Neospora caninum and leptospira interrogans serovar hardjo, respectively in the unvaccinated proportion of these 309 herds in 2009. Association analyses in the present study were carried out using multiple logistic regression models. Herds where cattle were purchased or introduced had a greater likelihood of being positive to leptospira interrogans serovar hardjo (P < 0.01) and Salmonella (P < 0.01). Larger herds had a greater likelihood of recording a positive bulk milk antibody result to leptospira interrogans serovar hardjo (P < 0.05). Herds that practiced year round calving were more likely to be positive to Neospora caninum (P < 0.05) compared to herds with a spring-calving season, with no difference in risk between herds that practiced split calving compared to herds that practiced spring calving. No association was found between presence of dogs on farms and prevalence of Neospora caninum possibly due to limited access of dogs to infected materials including afterbirths. The information from this study will assist in the design of suitable control programmes for the diseases under investigation in pasture-based livestock systems.

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Section: Discussionmentioning

confidence: 99%

Management practices as risk factors for the presence of bulk milk antibodies to Salmonella, Neospora caninum and Leptospira interrogans serovar hardjo in Irish dairy herds

Doherty

Berry

Grady

et al. 2014

Animal

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“…Veterinarians play a major role as key informants on the BS for cattle holders; indeed, they consider their veterinary practitioner as the main source of information and adopt BSM based on veterinary advices (Gunn, Heffernan, Hall, McLeod, & Hovi, ; Heffernan, Nielsen, Thomson, & Gunn, ; Sayers et al., ). On the other hand, veterinarians also represent an important risk factor in terms of disease spread, as many studies have listed visitors, and more specifically professional visitors such as veterinarians, as a key risk factor in terms of bio‐exclusion (Anderson, ; Brennan & Christley, ; Canadian Food Inspection Agency, ; Maunsell & Donovan, ; Mee, Geraghty, O'Neill, & More, ; NADIS, ; Nöremark, Frössling, & Lewerin, ; Sayers et al., ; van Schaik et al., ; van Winsen et al., ). Meanwhile, an ongoing survey implemented in Belgian cattle farms (unpublished data) confirmed that most cattle holders were not feeling comfortable in asking their veterinarians to wear clean and/or specific work clothes or boots when visiting their premises; they prefer relying on their professionalism in that regard.…”

Section: Introductionmentioning

confidence: 99%

Rural veterinarian's perception and practices in terms of biosecurity across three European countries

Renault

Humblet

Moons

et al. 2017

Transbound Emerg Dis

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The implementation of biosecurity measures in the animal health and production context is quite broad and aims at limiting the risk of introduction and spread of diseases. Veterinarians play a major role in biosecurity as key informants on the subject for cattle holders, key players in terms of disease prevention/control and eradication programs, as well as key risk factor in terms of disease dissemination. Many biosecurity studies have highlighted professional visitors such as veterinary practitioners as representing a high-risk factor in terms of disease introduction in animal facilities but, to date, very few studies have focused on the implementation level of biosecurity measures by veterinarians. An online survey was implemented in three European countries (Belgium, France and Spain) to assess the behaviour of rural veterinarians towards biosecurity, as well as their implementation level of the biosecurity measures. A descriptive analysis of data and a scoring system were applied to assess the implementation level of measures. The influence of different factors on the implementation level of biosecurity measures was investigated through a negative binomial regression model. The study identified different strengths, weaknesses, possible constraints and solutions in terms of veterinary perspectives. Veterinarians are considered as key informants by the farmers and could therefore play a more active role in terms of guidance and improvement of biosecurity at farm level. Based on the survey outcomes, two factors seemed to influence significantly the implementation level of measures: the country where he/she practices and the veterinarian's perception level of biosecurity. The biosecurity stages with the lowest application level, therefore representing the biggest threats, were bio-exclusion (increasing the risk of disease introduction) and biocontainment (increasing the risk of inter-herd transmission).

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“…Buying youngstock, whilst not risk free, is often the most biosecure but may not meet the needs of the buyer. A comprehensive review of applying this risk assessment process to the sourcing of new dairy animals is given by Maunsell and Donovan (2008).…”

Section: Preventative Measuresmentioning

confidence: 99%

Control of infectious diseases in dairy cattle

Wapenaar¹,

Archer²,

Remnant³

et al. 2017

Burleigh Dodds Series in Agricultural Science

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This chapter describes developments of infectious disease control in the dairy cattle industry, and outlines recent research in this area. A risk analysis approach is presented as a framework for managing infectious disease at global and farm level. Disease hazards, and the release and exposure of these are discussed. The importance of disease detection, the use of diagnostic tests, their appropriate interpretation and surveillance are highlighted. The range of impacts of infectious disease on the dairy industry is described and guidelines to estimate and evaluate risks of infectious diseases are provided. In addition, the challenges around successful implementation and effective communication of risk management on dairy farms are reviewed.

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Biosecurity and Risk Management for Dairy Replacements

Cited by 57 publications

References 126 publications

Management practices as risk factors for the presence of bulk milk antibodies to Salmonella, Neospora caninum and Leptospira interrogans serovar hardjo in Irish dairy herds

Management practices as risk factors for the presence of bulk milk antibodies to Salmonella, Neospora caninum and Leptospira interrogans serovar hardjo in Irish dairy herds

Rural veterinarian's perception and practices in terms of biosecurity across three European countries

Control of infectious diseases in dairy cattle

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