D. A. Graham
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View article: Estimating sectoral livestock biomass and stock value using data from national diseases eradication programs: a case study based on the Irish cattle herd from 2011 to 2021
Estimating sectoral livestock biomass and stock value using data from national diseases eradication programs: a case study based on the Irish cattle herd from 2011 to 2021 Open
Introduction Livestock biomass is a denominator for a wide range of important production metrics, including productivity, environmental impact, greenhouse gas emissions, and antimicrobial usage. Accurate biomass estimates allow cross-secto…
View article: Prevalence and risk factors for Bovine Herpesvirus Type 1 (BoHV-1) infection in Irish beef herds: results from the National Beef Welfare Scheme 2023
Prevalence and risk factors for Bovine Herpesvirus Type 1 (BoHV-1) infection in Irish beef herds: results from the National Beef Welfare Scheme 2023 Open
Infectious bovine rhinotracheitis (IBR), caused by bovine herpesvirus-1 (BoHV-1), is a highly contagious disease with significant economic impacts on the cattle industry. It can also lead to respiratory distress, reproductive losses and co…
View article: Strategies for creating undergraduate research and outreach experiences
Strategies for creating undergraduate research and outreach experiences Open
View article: The use of data for health and welfare management of farmed salmons in Norway, Scotland, and Ireland
The use of data for health and welfare management of farmed salmons in Norway, Scotland, and Ireland Open
Data-driven solutions can support stakeholders' decision-making when managing health and welfare in Atlantic salmon production. While many different types of data are being collected, knowledge about stakeholders' use and needs regarding t…
View article: Evaluating the effectiveness & costs of strategies post-eradication to monitor for freedom from BVDV infection in Ireland
Evaluating the effectiveness & costs of strategies post-eradication to monitor for freedom from BVDV infection in Ireland Open
View article: Estimation of sensitivity and specificity of bulk tank milk PCR and 2 antibody ELISA tests for herd-level diagnosis of Mycoplasma bovis infection using Bayesian latent class analysis
Estimation of sensitivity and specificity of bulk tank milk PCR and 2 antibody ELISA tests for herd-level diagnosis of Mycoplasma bovis infection using Bayesian latent class analysis Open
Mycoplasmosis (due to infection with Mycoplasma bovis) is a serious disease of beef and dairy cattle that can adversely affect health, welfare, and productivity. Mycoplasmosis can lead to a range of often severe, clinical presentations. My…
View article: Udder health outcomes in Irish herds participating in CellCheck dry cow consults
Udder health outcomes in Irish herds participating in CellCheck dry cow consults Open
The CellCheck dry cow consult (DCC) was developed by the CellCheck Technical Working Group to enable farmers to engage with their nominated veterinarian to develop farm-specific selective dry cow therapy (SDCT) plans, where appropriate. Th…
View article: Estimating Sectoral Livestock Biomass and Stock Value Using Data from National Diseases Eradication Programmes: A Case Study Based on the Irish Cattle Herd from 2011 to 2021
Estimating Sectoral Livestock Biomass and Stock Value Using Data from National Diseases Eradication Programmes: A Case Study Based on the Irish Cattle Herd from 2011 to 2021 Open
View article: Evaluating the Effectiveness & Costs of Strategies Post-Eradication to Monitor for Freedom from Bvdv Infection in Ireland
Evaluating the Effectiveness & Costs of Strategies Post-Eradication to Monitor for Freedom from Bvdv Infection in Ireland Open
View article: An observational study of ear-tagged calf mortality (1 to 100 days) on Irish dairy farms and associations between biosecurity practices and calf mortality on farms participating in a Johne's disease control program
An observational study of ear-tagged calf mortality (1 to 100 days) on Irish dairy farms and associations between biosecurity practices and calf mortality on farms participating in a Johne's disease control program Open
Postnatal mortality among replacement stock has a detrimental effect on the social, economic, and environmental sustainability of dairy production. Calf mortality rates vary between countries and show differences in temporal trends; most, …
View article: A Multi-Methods, Multi-Actor Exploration of the Benefits and Barriers to Milk Recording on Irish Farms Using the Com-B Model
A Multi-Methods, Multi-Actor Exploration of the Benefits and Barriers to Milk Recording on Irish Farms Using the Com-B Model Open
View article: The Irish cattle population structured by enterprise type: overview, trade & trends
The Irish cattle population structured by enterprise type: overview, trade & trends Open
View article: Seroprevalence of Mycoplasma bovis in bulk milk samples in Irish dairy herds and risk factors associated with herd seropositive status
Seroprevalence of Mycoplasma bovis in bulk milk samples in Irish dairy herds and risk factors associated with herd seropositive status Open
Mycoplasma bovis is a serious disease of cattle worldwide; mastitis, pneumonia, and arthritis are particularly important clinical presentations in dairy herds. Mycoplasma bovis was first identified in Ireland in 1994, and the reporting of …
View article: Risk factors for detection of bovine viral diarrhoea virus in low-risk herds during the latter stages of Ireland’s eradication programme
Risk factors for detection of bovine viral diarrhoea virus in low-risk herds during the latter stages of Ireland’s eradication programme Open
View article: The Irish Johne's Control Programme
The Irish Johne's Control Programme Open
The Irish Johne's Control Programme (IJCP) provides a long-term approach to the voluntary control of Johne's disease (JD) in Ireland, strongly supported by Irish cattle industry leadership. It leverages the establishment of Animal Health I…
View article: A Herd Investigation Tool in Support of the Irish Bovine Viral Diarrhoea Eradication Programme
A Herd Investigation Tool in Support of the Irish Bovine Viral Diarrhoea Eradication Programme Open
Bovine viral diarrhoea (BVD) is an important endemic disease of cattle. In Ireland, an industry-led compulsory eradication programme began in January 2013. The main elements of this programme are the identification and elimination of persi…
View article: The Irish Programme to Eradicate Bovine Viral Diarrhoea Virus—Organization, Challenges, and Progress
The Irish Programme to Eradicate Bovine Viral Diarrhoea Virus—Organization, Challenges, and Progress Open
A mandatory national Irish bovine viral diarrhoea (BVD) eradication programme, coordinated by Animal Health Ireland, commenced in 2013. Key decisions and programme review are undertaken by a cross-industry Implementation Group (BVDIG) supp…
View article: Key Learnings During the Development of a Generic Data Collection Tool to Support Assessment of Freedom of Infection in Cattle Herds
Key Learnings During the Development of a Generic Data Collection Tool to Support Assessment of Freedom of Infection in Cattle Herds Open
Various European Member States have implemented control or eradication programmes for endemic infectious diseases in cattle. The design of these programmes varies between countries and therefore comparison of the outputs of different contr…
View article: Combining expert knowledge and machine-learning to classify herd types in livestock systems
Combining expert knowledge and machine-learning to classify herd types in livestock systems Open
View article: Stakeholder perceptions of non-regulatory bovine health issues in Ireland: past and future perspectives
Stakeholder perceptions of non-regulatory bovine health issues in Ireland: past and future perspectives Open
Background In recent years, there have been multiple (political, environmental, cultural) drivers of change in Irish agriculture, including the establishment of Animal Health Ireland (AHI) in 2009, to provide leadership of non-regulatory l…
View article: Epidemiology of age-dependent prevalence of Bovine Herpes Virus Type 1 (BoHV-1) in dairy herds with and without vaccination
Epidemiology of age-dependent prevalence of Bovine Herpes Virus Type 1 (BoHV-1) in dairy herds with and without vaccination Open
View article: Spatial and network characteristics of Irish cattle movements
Spatial and network characteristics of Irish cattle movements Open
Our aim was to examine, for the first time, the spatial and network characteristics of cattle movements between herds in the Republic of Ireland (ROI), to inform policy and research of relevance to the surveillance and management of diseas…
View article: Johne’s disease in Irish dairy herds: considerations for an effective national control programme
Johne’s disease in Irish dairy herds: considerations for an effective national control programme Open
View article: Individual and herd-level milk ELISA test status for Johne's disease in Ireland after correcting for non-disease-associated variables
Individual and herd-level milk ELISA test status for Johne's disease in Ireland after correcting for non-disease-associated variables Open
Antibody-detecting tests for Mycobacterium avium ssp. paratuberculosis (MAP) have low sensitivity and imperfect specificity for detection of infection. Sensitivity increases as the disease progresses. Aside from infection status and stage …
View article: Quantification of risk factors for bovine viral diarrhea virus in cattle herds: A systematic search and meta-analysis of observational studies
Quantification of risk factors for bovine viral diarrhea virus in cattle herds: A systematic search and meta-analysis of observational studies Open
Bovine viral diarrhea virus (BVDV) is endemic in many parts of the world, and multiple countries have implemented surveillance activities for disease control or eradication. In such control programs, the disease-free status can be compromi…
View article: Herd-level factors associated with detection of calves persistently infected with bovine viral diarrhoea virus (BVDV) in Irish cattle herds with negative herd status (NHS) during 2017
Herd-level factors associated with detection of calves persistently infected with bovine viral diarrhoea virus (BVDV) in Irish cattle herds with negative herd status (NHS) during 2017 Open
View article: Genome-wide association study of endo-parasite phenotypes using imputed whole-genome sequence data in dairy and beef cattle
Genome-wide association study of endo-parasite phenotypes using imputed whole-genome sequence data in dairy and beef cattle Open
BACKGROUND: Quantitative genetic studies suggest the existence of variation at the genome level that affects the ability of cattle to resist to parasitic diseases. The objective of the current study was to identify regions of the bovine ge…
View article: Near-Earth Supernova Explosions: Evidence, Implications, and Opportunities
Near-Earth Supernova Explosions: Evidence, Implications, and Opportunities Open
There is now solid experimental evidence of at least one supernova explosion within 100 pc of Earth within the last few million years, from measurements of the short-lived isotope 60Fe in widespread deep-ocean samples, as well as in the lu…
View article: Candidate genes associated with the heritable humoral response to Mycobacterium avium ssp. paratuberculosis in dairy cows have factors in common with gastrointestinal diseases in humans
Candidate genes associated with the heritable humoral response to Mycobacterium avium ssp. paratuberculosis in dairy cows have factors in common with gastrointestinal diseases in humans Open
Infection of cattle with bovine paratuberculosis (i.e., Johne's disease) is caused by Mycobacterium avium ssp. paratuberculosis (MAP) and results in a chronic incurable gastroenteritis. This disease, which has economic ramifications for th…
View article: Investigation of the potential for sera from cattle persistently infected with bovine viral diarrhea virus to generate false-negative antibody ELISA results in pooled serum from seropositive and seronegative cattle
Investigation of the potential for sera from cattle persistently infected with bovine viral diarrhea virus to generate false-negative antibody ELISA results in pooled serum from seropositive and seronegative cattle Open
We investigated the potential for viremic sera from cattle persistently infected with bovine viral diarrhea virus to create false-negative antibody results when testing pools of 10 sera by indirect or blocking ELISAs. Seronegative viremic …