Publications

Gussmann, M., Steeneveld, W., Kirkeby, C., Hogeveen, H., Farre, M., Halasa, T. 2019. Intervention Strategies for Clinical and Subclinical Mastitis, In Proc. Of the symposium of veterinary epidemiology and preventive medicine (SVEPM), Utrecht, The Netherlands, March 2019.

Line Svennesen, Søren S. Nielsen, Yasser S. Mahmmod, Volker Krömker, Karl Pedersen and Ilka C. Klaas (2018). Association between teat skin colonization and intramammary infection with Staphylococcus aureus and Streptococcus agalactiae in herds with automatic milking systems. Journal of Dairy Science. Accepted.

Line Svennesen, Yasser S. Mahmmod, Nanna K. Skjølstrup, Louise R. Mathiasen, Jørgen Katholm, Karl Pedersen, Ilka C. Klaas and Søren S. Nielsen (2018). Validation of qPCR and Bacterial Culture for the Diagnosis of Bovine Intramammary Infections and Teat Skin Colonisation with Streptococcus agalactiae and Staphylococcus aureus using Bayesian Analysis. Preventive Veterinary Medicine, 161:69-74. https://doi.org/10.1016/j.prevetmed.2018.10.013

Troels Ronco, Ilka C. Klaas, Marc Stegger, Line Svennesen, Lærke B. Astrup, Michael Farre and Karl Pedersen (2018). Genomic investigation of Staphylococcus aureus isolates from bulk tank milk and dairy cows with clinical mastitis. Microbiology, 215:35-42. https://doi.org/10.1016/j.vetmic.2018.01.003

Yasser S. Mahmmod, Bettina Nonnemann, Line Svennesen, Karl Pedersen and Ilka C. Klaas (2018). Typeability of MALDI-TOF assay for identification of non-aureus staphylococci associated with bovine intramammary infections and teat apex colonization. Journal of Dairy Science, 101:9430-9438 https://doi.org/10.3168/jds.2018-14579

Yasser S. Mahmmod, Ilka C. Klaas, Line Svennesen, Karl Pedersen, Hanne Ingmer (2018). Communications of Staphylococcus aureus and non-aureus Staphylococcus species from bovine intramammary infections and teat apex colonization. Journal of Dairy Science, 101:7322-7333 https://doi.org/10.3168/jds.2017-14311

Halasa, T., Hogeveen, H. Culling cows with mastitis: An economic perspective. 2018. Invited Speaker: In proceedings of the annual meeting of the National Mastitis Council, 30th Jan to 2nd Feb 2018, Tucson, Arizona, USA.

Kirkeby, C., Servens, L.M., Toft, N., Farre, M., Græsbøll, K., Halasa, T., 2018. Transmission rate and infection duration of Staphylococcus aureus in two Danish dairy cattle herds. Journal Dairy Science, Accepted. https://doi.org/10.3168/jds.2018-15106

Gussmann, M., Steeneveld, W., Kirkeby, C., Farre, M., Hogeveen, H., Nielen, M., Halasa, T. 2018. Modelling the impact of different treatment and culling strategies for clinical mastitis. Journal of Dairy Science. Accepted. https://doi.org/10.3168/jds.2018-14939.

Gussmann, M., Kirkeby, C., Græsbøll, K., Farre, M., Halasa, T. 2018. A strain, cow and herd specific bio-economic model of spread of intramammary infections in dairy cattle herds. Journal of Theoretical Biology. 449:83-93. DOI.org/10.1016/j.jtbi.2018.04.022

Gussmann, M., Græsbøll, K., Toft, N., Nielsen S.S., Farre, M., Kirkeby, C., Halasa, T., 2018. Determinants of antimicrobial treatment in Danish dairy cattle herds. Journal of Dairy Science. 101:505-517.

Kirkeby, C., Halasa, T., Gussmann, M., Toft, N., Græsbøll, K., 2017. Methods for estimating disease transmission rates: Evaluating the precision of Poisson regression and two novel methods. Scientific Reports. DOI:10.1038/s41598-017-09209-x.

Græsbøll, K., Kirkeby, C., Nielsen S.S., Halasa, T., Toft, N., Christiansen, L.E., 2017. A Robust statistical model to predict the future value of milk production of dairy cows using herd recording data. Frontiers in Veterinary Science. doi: 10.3389/fvets.2017.00013.

Græsbøll, K., Kirkeby, C., Nielsen S.S., Halasa, T., Toft, N., Christiansen, L.E., 2016. Models to estimate lactation curves of milk and somatic cell count in dairy cows at the herd level for the use in simulations and predictive models. Frontiers in Veterinary Science. 3:115. doi:10.3389/fvets.2016.00115.

Mweu, M.M., Nielsen, S.S., Halasa, T., Toft, N., 2014. Spatiotemporal pattern, annual baseline and movement-related incidence of Streptococcus agalactiae in Danish dairy herds: 2000 – 2009, Preventive Veterinary Medicine, 113, 219-230.

Mweu, M.M., Fournié, G., Halasa, T., Toft, N., Nielsen, S.S., 2013. Temporal characterisation of the network of Danish cattle movements and its implication for disease control: 2000 – 2009. Preventive Veterinary Medicine, 110, 379-387.

Halasa, T., 2012. Bioeconomic modelling of interventions against clinical mastitis caused by contagious pathogens, Journal of Dairy Science, 95, 5740-5749.

Mweu, M.M., Nielsen, S.S., Halasa, T., Toft, N., 2012. Annual incidence, prevalence and transmission characteristics of Streptococcus agalactiae in Danish dairy herds, Preventive Veterinary Medicine, 106, 244–250.

Borne van den, B. H. P. T. Halasa, van Schaik G., Hogeveen H., Nielen M. 2010. Bio-economic modeling of lactational antimicrobial treatment of new bovine subclinical intramammary infections caused by contagious pathogens, Journal of Dairy Science 93:4034-4044.

Halasa, T., Nielen, M., Whist, A.C., Van Werven, T., Hogeveen, H., Østerås, O. Meta-analysis on the efficacy of dry cow therapy interventions. In Proc. Of the symposium of veterinary epidemiology and preventive medicine (SVEPM), London, UK, April 2009, pp. 105-115.

Halasa, T., Nielen M., Van Werven T., Hogeveen H. 2010. Stochastic simulation model to calculate the cost and benefits of dry period interventions in dairy cattle, Livestock Science 129:80-87.

Halasa, T., Nielen M. De Roos A., van Hoorne R., de Jong G., Lam T., Hogeveen H. 2009. Production loss due to new subclinical mastitis in Dutch Dairy herds estimated using a test-day model, Journal of Dairy Science 92:599-606.

Halasa, T., Nielen M., Huirne R., Hogeveen H. 2009. Stochastic bio-economic modeling of bovine intramammary infections, Livestock Science 124:295-305.

Halasa, T., Østerås O., Hogeveen H., van Werven T., Nielen M. 2009. Meta-analysis of Dry Cow Managements in Lactating Dairy Cattle. Part 1. Protection against New Intramammary Infections, Journal of Dairy Science 92:3134-3149.

Halasa, T., Whist A.C., Nielen M., Østerås O. 2009. Meta-analysis of Dry Cow Managements in Lactating Dairy Cattle. Part 2. Cure of Existing Intramammary Infections, Journal of Dairy Science 92:3150-3157.

Halasa, T., Huijps K., Østerås O., Hogeveen H. 2007. Economic effects of bovine mastitis and mastitis management: A review, Veterinary Quarterly 29:18-31.