Main Article Content

Miroslav Záhradník


This review aims to summarize the current knowledge about the logical basis of the decision support systems and highlighting future research and development needs for their effective adoptions by dairy farmers. Thus, an emphasis was given on the barriers to their wider uptake in the farming community. The article investigates scientific and professional literature regarding the decision support system framework, according to different factors affecting dairy farm profitability, such as optimal replacement decisions, reproductive performance, economic efficiency, and mortality rates. Accordingly, the description of the various methods being applied was covered. Special attention was drawn on the sustainability agenda, also linking to the idea of benchmarking farm performance and modeling impacts of different management decisions. Benchmarking helps to identify where strengths and weaknesses lie within a farm business. The decision support tools can be used to run various scenarios in the field of structural and technical change on dairy farms. Moreover, they can be tailored for dairy farms that differ in intensity and scale. The multi-actor approach during the development phase of the tools, also enabling dairy farmers to co-design them, may improve the acceptance of co-created solutions at the farm-level. It is also important to drive scientists and extension specialists to provide better understandable outputs by the sets of specific training.

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Abeni, F., Calamari, L., Stefanini, L. & Pirlo, G. (2000). Effects of daily gain in pre- and post-pubertal replacement dairy heifers on body condition score, body size, metabolic profile, and future milk production. Journal of Dairy Science, 83, 1468−1478.

AgSource Cooperative Service. (2005). Block G, yearly turnover. http:// www.crinet.com/hsblockg.htm.

Alenljung, B. (2008). Envisioning a future decision support system for requirements engineering: A holistic and human-centred perspective. Doctoral Thesis, Department of Computer and Information Science, Linköping University, Sweden, Thesis No. 1155

Allaire, F. R. (1981). Economic consequences of replacing cows with genetically improved heifers. Journal of Dairy Science, 64, 1985−1995.

Alvarez, J. & Nuthall, P. (2006). Adoption of computer based information systems: the case of dairy farmers in Canterbury, NZ, and Florida, Uruguay. Computers and Electronics in Agriculture, 50, 48−60.

Andrew, M., Grundy, M., & Harris, C. (2013). Decision support tools for agriculture. http://www.csiro.au/en/Organisation-Structure/Flagships/Sustainable-Agriculture-Flagship/Decision-support-tools-agri.aspx. Accessed August 24, 2020.

Andrieu, N., Poix, C., Josien, E. & Duru, M. (2007). Simulation of forage management strategies considering farm-level diversity: example of dairy farms in the Auvergne. Computers and Electronics in Agriculture, 55, 36−48.

Aubert, B. A., Schroeder, A. & Grimaudo, J. (2012). IT as enabler of sustainable farming: An empirical analysis of farmers' adoption decision of precision agriculture technology. Decision Support Systems, 54, 510−520. https://doi.org/10.1016/j.dss.2012.07.002

Bailey, T. & Currin, J. (2009). Heifer Inventory and the Economics of Replacement Rearing. https://www.pubs.ext.vt.edu/404/404-287/404-287.html. Accessed August 24, 2020

Barragan, A. A., Workman, J. D., BAS, S., Proudfoot, K. L. & Schuenemann, G. M. (2016): Assessment of an application for touchscreen devices to record calving-related events in dairy herds and monitor personnel performance. Journal of Dairy Science, 99, 662−5670. https://doi.org/10.3168/jds.2015-10841

Bayliss, H. R., Wilcox, A. & Randall, N. (2012). Does research information meet the needs of stakeholders? Exploring evidence selection in the global management of invasive species. Evidence and Policy, 8, 37−56.

Beaudeau, F., van der Ploeg, J. D., Boileau, B., Seegers, H. & Noordhuizen, J. P. T. M. (1996). Relationships between culling criteria in dairy herds and farmers' management styles. Preventive Veterinary Medicine, 25, 327−342.

Berglund, B., Steinbock, L. & Elvander, M. (2003). Causes of stillbirth and time of death in Swedish Holstein calves examined post mortem. Acta Veterinaria Scandinavia, 44, 111−120.

Bernet, T., Ortiz, O., Estrada, R. D., Quiroz, R. & Swinton, S. M. (2001). Tailoring agricultural extension to different production contexts: a user-friendly farm household model to improve decision-making for participatory research. Agricultural Systems, 69, 183−198.

Bewley, J. M., Boehlje, M. D., Gray, A. W., Hogeveen, H., Kenyon, S. J., Eicher, S. D. & Schultz, M. M. (2010). Stochastic simulation using @Risk for dairy business investment decisions. Agricultural Finance Review, 70, 97−125. https://doi.org/10.1108/00021461011042666

Binder, C. R., Feola, G., & Steinberger, J. K. (2010). Considering the normative, systemic and procedural dimensions in indicator-based sustainability assessments in agriculture. Environmental Impact Assessment Review, 30(2), 71−81. https://doi.org/10.1016/j.eiar.2009.06.002

Bond, A. J., & Morrison-Saunders, A. (2013). Challenges in determining the effectiveness of sustainability assessment. In A. J. Bond, A. Morrison-Saunders, & R. Howitt (Eds.), Sustainability assessment: pluralism, practice and progress (pp. 37−50). Routledge.

Bonev, G. & Kostadinova, N. (2011). Economic investigation on reproduction model in sheep farming. Agricultural Economics and Management, 56(6), 23−28.

Booty, W., Wong, I., Lam, D. & Resler, O. (2009). A decision support system for environmental effects monitoring. Environmental Modelling & Software, 24, 889−900.

Brett, J. (2003). What is the ideal culling rate? Dairy Herd Manager, 40, 100.

Britt, J. H. (1985). Enhanced reproduction and its economic implications. Journal of Dairy Science, 68, 1585−1592.

Brown, S. (1995). Measures of Perfection. Sales and Marketing Management, 104−105.

Bush, R. D., Windsor, P. A., Toribio, J. A. & Webster, S. R. (2008). Financial modelling of the potential cost of ovine Johne's disease and the benefit of vaccinating sheep flocks in southern New South Wales. Australian Veterinary Journal, 86, 398−403.

Cabrera, V. E., Breuer, N. E., Hildebrand, P. E. & Letson, D. (2005). The dynamic North Florida dairy farm model: a user-friendly computerized tool for increasing profits while minimizing N leaching under varying climatic conditions. Computers and Electronics in Agriculture, 49, 286−308.

Cabrera, V. E., Hildebrand, P. E., Jones, J. W., Letson, D., & De Vries, A. (2006). An integrated North Florida dairy farm model to reduce environmental impacts under seasonal climate variability. Agriculture, Ecosystems and Environment, 113(1-4), 82−97. https://doi.org/10.1016/j.agee.2005.08.039

Cabrera, V. E. (2012). A simple formulation and solution to the replacement problem: A practical tool to assess the economic cow value, the value of a new pregnancy, and the cost of pregnancy loss. Journal of Dairy Science, 95, 4683−4698.

Cabrera, V. E. & Giordano, J. O. (2010). Economic decision making for reproduction. Dairy Cattle Reproduction Conference, St. Paul, MN, p. 77−86.

Calsamiglia, S., Astiz, S., Baucells, J. & Castillejos, L. (2018): A stochastic dynamic model of a dairy farm to evaluate the technical and economic performance under different scenarios. Journal of Dairy Science, 101, 7517−7530.

Carson, A. F., Dawson, L. E. R., McCoy, M. A., Kilpatrick, D. J. & Gordon, F. J. (2002). Effects of rearing regime on body size, reproductive performance and milk production during the first lactation in high genetic merit dairy herd replacements. Animal Science, 74, 553−565.

Castelan-Ortega, O. A., Fawcett, R. H., Arriaga-Jordan, C. & Herrero, M. (2003). A decision support system for smallholder campesino maize-cattle production systems of the Toluca Valley in Central Mexico. Part I – Integrating biological and socio-economic models into a holistic system. Agricultural Systems, 75, 1−21.

Cerf, M., Mathieu, A., Béguin, P. & Thiery, O. (2008). A collective analysis of co-design projects. Empowerment of the rural actors: a renewal of farming systems perspectives. 8th European IFSA Symposium, pp. 1−6. Clermont-Ferrand, France.

Coffey, M. P., Hickey, J. & Brotherstone, S. (2006). Genetic aspects of growth of Holstein-Friesian dairy cows from birth to maturity. Journal of Dairy Science, 89, 322−329.

Compton, C. W. R., Heuer, C., Thomsen, P. T., Carpenter, T. E., Phyn, C. V. C. & McDougall, S. (2017). Invited review: A systematic literature review and meta-analysis of mortality and culling in dairy cattle. Journal of Dairy Science, 100, 1−16. https://doi.org/10.3168/jds.2016-11302

Coteur, I., Marchand, F., Debruyne, L., Daelemans, F. & Lauwers, L. (2016). A framework for guiding sustainability assessment and on-farm strategic decision making. Environmental Impact Assessment Review, 60, 16−23.

Council for Agriculture Science and Technology. (1999). Animal Agriculture and Global Food Supply, Task Force Report no. 135. Ames, Iowa, USA.

Cournut, S. & Dedieu, B. (2004). A discrete events simulation of flock dynamics: a management application to three lambings in two years. Animal Research, 53, 383−403.

Crosson, P., O'Kiely P., O'Mara, F. P. & Wallace, M. (2006). The development of a mathematical model to investigate Irish beef production systems. Agricultural Systems, 89, 349−370.

Dairy Records Management Systems. (1997). DHIA-202 herd summary, Fact Sheet A-1. Online. Available http://www.drms.org/PDF/materials/202fact1.pdf

Daniels, K. M. 2010. Dairy heifer mammary development. Proc. 19th Annual Tri-State Dairy Nutrition Conference, pp. 69–76, Ft. Wayne, IN.

De Jong. (2013). Sustainable Dairy Production. Wiley-Blackwell. ISBN: 978-0-470-65584-9

De Vries, M. & de Boer, I. J. M. (2009) Comparing environmental impacts for livestock products: a review of life cycle assessments. Livestock Science, 128, 1−11.

De Vries, M., Bokkers, E. A. M., Dijkstra, T., van Schaik, G. & de Boer, I. J. M. (2011). Invited review: Associations between variables of routine herd data and dairy cattle welfare indicators. Journal of Dairy Science, 94, 3213−3228. http://dx.doi.org/10.3168/jds.2011-4169.

Debauche, O., Mahmoudi, S., Andriamandroso, A. L. H., Manneback, P., Bindelle, J. & Lebeau, F. (2018): Cloud services integration for farm animals' behavior studies based on smartphones as activity sensors. Journal of Ambient Intelligence and Humanized Computing, 10(12), 4651−4662

Diaz-Solis, H., Kothmann, M. M., Hamilton, W. T. & Grant, W. E. (2003). A simple ecological sustainability simulator (SESS) for stocking rate management on semi-arid grazing lands. Agricultural Systems, 76, 655−680.

Dicks, L. V., Walsh, J. & Sutherland., W. J. (2014). Organising evidence for environmental management decisions: a '4S' hierarchy. Trends in Ecology and Evolution, 29, 607−613

Dohoo, I. R. & Dijkhuizen, A. A. (1993). Techniques involved in making dairy cow culling decisions. Compendium on Continuing Education for the Practicing Veterinarian, 15, 515−520.

Eicker, S. W. & Fetrow, J. (2003). A prospective view of culling. Midwest Dairy Herd Health Conference. University of Wisconsin, Madison. https://nanopdf.com/download/a-prospective-view-of-culling-steve-eicker-dvm-ms_pdf

Elhag, M. & Walker, S. (2011). A Decision Support Tool to Assess Desertification Condition in Arid and Semi-Arid Regions. International Journal of Water Resources and Arid Environments, 1(5), 378−381.

El-Osta, H. S. & Morehart, M. J. (2000). Technology adoption and its impact on production performance of dairy operations. Review of Agricultural Economics, 22 (2), 477−498.

Ettema, J. F., Østergaard, S. & Sørensen M. K. (2011). Effect of including genetic progress in milk yield on evaluating the use of sexed semen and other reproduction strategies in a dairy herd. Animal, 5, 1887−1897.

Ettema, J. F. & J. E. Santos. (2004). Impact of age at calving on lactation, reproduction, health, and income in first-parity Holsteins on commercial farms. Journal of Dairy Science, 87, 2730−2742.

Fetrow, J., Nordlund, K. V. & Norman, H. D. (2006). Invited Review: Culling: Nomenclature, Definitions, and Recommendations. Journal of Dairy Science, 89, 1896−1905.

Fraisse, C. W., Perez, N. & Andreis, J. H., (2015). Smart Strawberry Advisory System for Mobile Devices. EDIS Publication AE516, UF/IFAS Extension. https://edis.ifas.ufl.edu/pdffiles/AE/AE51600.pdf

Franks, J. R. & Collis, J. (2003). On-farm benchmarking: how to do it and how to do it better. International Farm Management Association. 14th Congress, Perth, Western Australia, August 10-15.

Freebairn, D. M., Robinson, J. B. & Glanville, S. F. (2002). Software tools for learning and decision support. http://www.mssanz.org.au/MODSIM01/Vol%204/ Freebairn.pdf

Fricke, P. M. (2004). Strategies for optimizing reproductive management of dairy heifers. Proceedings of Western Canadian Dairy Seminar, Red Deer, AB, Canada, 9-12 Mar 2004, pp. 163−176.

Fricke, P. M. (2003). Heifer reproduction. Raising Dairy Replacements. Midwest Plan Service. Ames, IA, pp.77−83.

Gabler, M. T. & Heinrichs, A. J. (2003). Dietary protein to metabolizable energy ratios on feed efficiency and structural growth of prepubertal Holstein heifers. Journal of Dairy Science, 86, 268−274.

Gangwer, M., Gamroth M. & Seldin, R. (1993). 10 important measures: Understanding dairy herd performance measurements from the Agri-Tech Analytics DHIA Herd Total Report, EM8540. http://eesc.orst.edu/agcomwebfile/edmat/html/EM/EM8540/EM8540.html

Gargiulo, J. I., Eastwood, C. R., Garcia, S. C. & Lyons, N. A. (2018): Dairy farmers with larger herd sizes adopt more precision dairy technologies. Journal of Dairy Science, 101(6), 5466−5473.

Garmestani, A., Allen, C., Mittelstaedt, J., Stow, C., & Ward, W. (2006). Firm size diversity, functional richness, and resilience. Environment and Development Economics, 11(4), 533-551. https://doi.org/10.1017/S1355770X06003081

Gasparatos, A. & Scolobig, A. (2012). Choosing the most appropriate sustainability assessment tool. Ecological Economics, 80, 1−7. https://doi.org/10.1016/j.ecolecon.2012.05.005

Gent, D. H., Mahaffee, W. F., McRoberts, N. & Pfender, W. F. (2013). The use and role of predictive systems in disease management. Annual Review of Phytopathology, 51, 267−289.

Gibson, R. B. (2006). Beyond the pillars: sustainability assessment as a framework for effective integration of social, economic and ecological considerations in significant decision-making. Journal of Environmental Assessment Policy and Management, 8, 259−280. https://doi.org/org/10.1142/S1464333206002517

Giordano, J. O., Fricke, P. M., Wiltbank, M. C. & Cabrera, V. E. (2011). An economic decision − making support system for selection of reproductive management programs on dairy farms. Journal of Dairy Science, 94, 6216−6232.

Giordano, J. O., Kalantari, A. S., Fricke, P. M., Wiltbank, M. C. & Cabrera, V. E. (2012). A daily herd Markov-chain model to study the reproductive and economic impact of reproductive programs combining timed artificial insemination and estrus detection. Journal of Dairy Science, 95, 5442−5460.

Godfray, H. C. J., Beddington, J. R., Crute, I. R., Haddad, L., Lawrence, D., Muir, J. F., Pretty, J., Robinson, S., Thomas, S. M. & Toulmin, C. (2010) Food Security: The Challenge of Feeding 9 Billion People. Science, 327(5967) 812−818. https://doi.org/10.1126/science.1185383

Gómez-Limón, J. A., & Riesgo, L. (2009). Alternative approaches to the construction of a composite indicator of agricultural sustainability: An application to irrigated agriculture in the Duero basin in Spain. Journal of Environmental Management, 90(11), 3345−3362. https://doi.org/10.1016/j.jenvman.2009.05.023

Graham, R., Mancher, M., Miller Wolman, D., Greenfield, S. & Staiberg, E. (2011) Clinical Practice Guidelines We Can Trust, National Academic Press (US). https://doi.org/10.17226/13058

Groenendaal, H., Galligan, D. & Mulder, H. (2004). An economic spreadsheet model to determine optimal breeding and replacement decisions for dairy cattle. Journal of Dairy Science, 87, 2146−2157.

Hall, P., Holmes-Ling, P., Stewart, K. & Sheane, R. (2010). A Scottish farm-based greenhouse gas accounting tool for Scotland. Report for the Scottish Government by Laurence Gould Partnership Ltd. and Best Foot Forward.

Harris, M. A. & Weistroffer, H. R. (2009). A New Look at the Relationship between User Involvement in Systems Development and System Success. Communications of the Association for Information Systems, 24(42), 739−756

Hartwick, J., & Barki, H. (2001) Communication as a dimension of user participation. IEEE Transactions on Professional Communication, 44(1), 21−36.

Henchion, M., Hayes, M., Mullen, A., Fenelon, M. & Tiwari, B. (2017). Future protein supply and demand: strategies and factors influencing a sustainable equilibrium. Foods, 2017, 6(7), 53. https://doi.org/10.3390/foods6070053

Herve, D., Genin, D. & Migueis, J. (2002). A modelling approach for analysis of agro pastoral activity at the one-farm level. Agricultural Systems, 71, 187−206.

Hoekema, M. J. (1999a). Guess what may be eating your lunch: The hidden costs of cull rate (part 1 of 2). http://dairy.ifas.ufl.edu/DBAP/The%20hidden%20costs%20of%20cull%20rate%201

Hoekema, M. J. (1999b.) Guess what may be eating your lunch: The hidden costs of cull rate (part 2 of 2). http://dairy.ifas.ufl.edu/DBAP/The%20hidden%20costs%20of%20cull%20rate%202.pdf

Hopwood, B., Mellor, M., & Brien, G. O. (2005). Sustainable Development − Mapping Different Approaches. Inter Science, 52, 38−52. https://doi.org/10.1002/sd.244

Huba, J., Záhradník, M., Dianová, M. & Kotrbová, I. 2017. Dobrá správa – v našej populácii stúpa produkcia na deň života dojníc.. [Good news − the day production in our population per dairy cows' lives is rising..]. Mini Info, 10(4), 36−38.

Ingrand, S., Cournut, S., Dedieu, B. & Antheaume, F. (2003). Modelling beef herd management decisions. INRA Productions Animales, 16, 263−270.

Iribarren, D., Hospido, A., Moreira, M. T. & Feijoo, G. (2011). Benchmarking environmental and operational parameters through eco-efficiency criteria for dairy farms. Science of the Total Environment, 409(10), 1786−1798.

Jakeman, A. J. (Ed.), Voinov, A., Rizzoli, A. E. & Chen, S. H. (2008). Environmental modelling, software and decision support: state of the art and new perspectives: also as e-book. (Developments in integrated environmental assessment; Vol. 3). Amsterdam etc.: Elsevier.

Jakku, E. & Thorburn, P. J. (2010). A conceptual framework for guiding the participatory development of agricultural decision support systems. Decision Support Systems, 103, 675−682.

Kalantari, A. S., Mehrabani-Yeganeh, H. & Moradi, M. (2010). Determining the optimum replacement policy for Holstein dairy herds in Iran. Journal of Dairy Science, 93, 2262−2270.

Kalantari, A. S., Cabrera, V. E. & Solis D. (2014). A comparison analysis of two alternative dairy cattle replacement strategies: optimization versus simulation models. Economía Agraria, 18, 12−24.

Kaloxylos, A., Groumas, A., Sarris, V., Katsikas, L., Magdalinos, P., Antoniou, E., Politopoulou, Z., Wolfert, S., Brewster, C., Eigenmann, R. & Maestre Terol, C. (2014). A cloud-based Farm Management System: Architecture and implementation. Computers and Electronics in Agriculture, 100 168−179.

Kaspersson, E., Rabinowicz, E. & Schwaag Serger, S. (2002). EU milk policy after enlargement: competitiveness and politics in four candidate countries. Lund: Swedish Institute for Food and Agricultural Economics.

Korte, M., Lee, K. & Fung, C. C. (2012) Sustainability in Information Systems: Requirements and Emerging Technologies. In Proc. 2012 International Conference on Innovation, Management and Technology Research (ICIMTR2012), Malacca, Malaysia, 21-22 May, 2012, pp. 481−485.

Kristensen, A. R. (1988). Hierarchic Markov processes and their applications in replacement models. European Journal of Operational Research, 35, 207−215.

Kristensen, A. R. & Thysen, I.1991. Ranking of dairy cows for replacement. Acta Agriculturae Scandinavica, 41, 295−303.

Krupová, Z., Michaličková, M. & Krupa, E. 2012. Review of methodologies for costs calculating of ruminants in Slovakia. Journal of Central European Agriculture, 2012, 13(3), 426−445. https://doi.org/10.5513/JCEA01/13.3.1068

Kustermann, B., Kainz, M. & Hulsbergen, K. J. (2008). Modeling carbon cycles and estimation of greenhouse gas emissions from organic and conventional farming systems. Renewable Agriculture and Food Systems, 23, 38−52.

Leeuwis, C., & Van den Ban, A. W. (2004). Communication for Rural Innovation: rethinking agricultural extension. Blackwell Publishing Ltd.Lehenbauer, T. W., and J. W. Oltjen. (1998). Dairy cow culling strategies: making economical culling decisions. Journal of Dairy Science, 81, 264−271.

Lindblom, J., Lundström, C. & Ljung, M. (2014). Next generation decision support systems for farmers: sustainable agriculture through sustainable IT. 11th European IFSA Symposium, Farming Systems Facing Global Challenges: Capacities and Strategies, Proceedings, Berlin, Germany, 1-4 April 2014. http://ifsa.boku.ac.at/cms/fileadmin/Proceeding2014/WS_1_1_Lindblom.pdf

Matzek, V., Covino, J. Funk, J. L. & Saunders, M. (2014) Closing the knowing-doing gap in invasive plant management: accessibility and interdisciplinarity of scientific research. Conservation Letters, 7, 208−215.

McCown R. L. (2005). New Thinking About Farmer Decision Makers. In: The Farmer's Decision: Balancing Economic Successful Agriculture Production with Environmental Quality. J.L. Hatfield (ed.) Soil and Water Conservation Society, Ankeny, Iowa, USA, pp. 11−44.

McCown, R. L. (2002) Changing systems for supporting farmers' decisions: problems, paradigms, and prospects. Agricultural Systems, 74, 179−220.

McIntosh, B. S., Ascough II, J. C., Twery, M., Chew, J., Elmahdi, A., Haase, D., Harou, J. J., Hepting, D., Cuddy, S., Jakeman, A. J., Chen, S., Kassahun, A., Lautenbach, S., Matthews, K., Merritt, W., Quinn, N. W. T., Rodriguez-Roda, I., Sieber, S., Stavenga, M., Sulis, A., Ticehurst, J., Volk, M., Wrobel, M., van Delden, H., El-Sawah, S., Rizzoli, A. & Voinov, A. (2011) Environmental decision support systems (EDSS) development – Challenges and best practices. Environmental Modelling & Software, 26, 1389−1402.

McIntosh, B. S., Giupponi, C., Smith, C., Voinov, A., Assaf, H., Crossman, N., Gaber, N., Groot, J., Haase, D., Hepting, D., Kolkman, R., Matthews, K., Monticino, M., Mysiak, J., Quinn, N., Scholten, H., Sieber, S. (2008). Bridging the gaps between design and use: developing tools to support management and policy. U.S. Environmental Protection Agency Papers, p. 71.

Melville, N.P. (2010). Information Systems Innovation for Environmental Sustainability. MIS Quarterly, 34(1), 1–21.

Meyer, C. L., Berger, P. J., Koehler, K. J., Thompson, J. R. & Sattler, C. G. (2001). Phenotypic trends in incidence of stillbirth for Holsteins in the United States. Journal of Dairy Science, 84, 515−523.

Mourits, M. C. M., Huirne, R. B. M., Dijkhuizen, A. A., Kristensen, A. R., Galligan, D. T. (1999). Economic optimization dairy heifer management decisions. Agricultural Systems, 61, 17−31. https://doi.org/

Murphy, S. P. & Lindsay, L. H. (2003). Nutritional importance of animal source foods. Journal of Nutrition, 133, 3932S-3935S.

Nelson, R. A., Holzworth, D. P., Hammer, G. L. & Hayman, P. T. (2002). Infusing the use of seasonal climate forecasting into crop management practice in North East Australia using discussion support software. Agricultural Systems, 74, 393−414.

Ness, B., Urbel-Piirsalu, E., Anderberg, S., & Olsson, L. (2007). Categorising tools for sustainability assessment. Ecological Economics, 60(3), 498−508. https://doi.org/10.1016/j.ecolecon.2006.07.023

Neumann, C., Harris, D. M. & Rogers, L. M. (2002). Contribution of animal source foods in improving diet quality and function in children in the developing world. Nutrition Research, 22, 193−220.

Nguyen, N., Wegener, M. & Russell, I. (2006). Decision support systems in Australian agriculture: state of the art and future development. Proceedings of the 26th Conference of the International Association of Agricultural Economists, Gold Coast, Australia.

Öhlmér, B. (2001). Analytic and intuitive decision making – Swedish farmers' behaviour in strategic problem solving. In: Proceedings of the Third EFITA Conference, Montpellier, France.

Öhlmér, B., Olson, K. & Brehmer, B. (1998). Understanding farmers' decision making processes and improving managerial assistance. Agricultural Economics, 18, 273−290.

Olynk, N. J. & Wolf, C. A. (2009). Stochastic economic analysis of dairy cattle artificial insemination reproductive management programs. Journal of Dairy Science, 92, 1290−1299.

Ortiz-Pelaez, A., Pritchard, D. G., Pfeiffer, D. U., Jones, E., Honeyman, P. and Mawdsley, J. J. (2008). Calf mortality as a welfare indicator on British cattle farms. Veterinary Journal, 176, 177−181.

Pacini, C., Wossink, A., Giesen, G. & Huirne, R. (2004). Ecological-economic modelling to support multi-objective policy making: a farming systems approach implemented for Tuscany. Agriculture, Ecosystems & Environment, 102, 349−364.

Parker, C. & Sinclair, M. (2001). User-centred design does make a difference: The case of decision support systems in crop production. Behaviour & Information Technology, 20(6), 449−460

Parker, C. & Campion, S. (1997). Improving the Uptake of Decision Support Systems in Agriculture. Proceedings of First European Conference for Information Technology in Agriculture, 129−134.

Perrings, C. (1998). Resilience in the dynamics of economy-environment system. Environment and Resource Economics, 11(3–4), 503−520.

Pirlo, G., Miglior, F. & Speroni, M. (2000). Effect of Age at First Calving on Production Traits and on Difference between Milk Yield Returns and Rearing Costs on Italian Holsteins. Journal of Dairy Science,
83, 603−608. http://dx.doi.org/10.3168/jds.S0022-0302(00)74919-8

Pla, L. M., Pomar, C. & Pomar J. (2003). A Markov decision sow model representing the productive lifespan of herd sows. Agricultural Systems, 76, 253−272.

Pope, J., & Morrison-Saunders, A. (2013). Pluralism in practice. Sustainability assessment: pluralism, practice and progress (pp. 100−114). Routledge.

Pope, J., Annandale, D., & Morrison-Saunders, A. (2004). Conceptualising sustainability assessment. Environmental Impact Assessment Review, 24(6), 595−616. https://doi.org/10.1016/j.eiar.2004.03.001

Poppe, K. J., Wolfert, S., Verdouw, C. & Verwaart, T. (2013). "Information and Communication Technology as a Driver for Change in Agri-Food Chains." EuroChoices, 12(1), 60−65.

Pullin, A. S. & Knight, T. M. (2005). Assessing conservation management's evidence base: a survey of management-plan compilers in the United Kingdom and Australia. Conservation Biology, 19, 1989−1996.

Radke, B. R. (2000). Production management: Sixteen dairy culling and replacement myths. Compendium on Continuing Education for the Practising Veterinarian - North American Edition, 22(2), S36−57.

Rajala-Schultz P. J. & Gröhn Y. T. (1999). Culling of dairy cows. Part III. Effects of diseases, pregnancy status and milk yield on culling in Finnish Ayrshire cows. Preventive Veterinary Medicine, 41, 295−309.

Randolph, T. F., Schelling, E., Grace, D., Nicholson, C. F., Leroy, J. L., Cole, D. C., Demment, M. W., Omore, A., Zinsstag, A. & Ruel, M. (2007). Invited review: Role of livestock in human nutrition and health for poverty reduction in developing countries. Journal of Animal Science, 85, 2788−2800.

Rennings, K., Wiggering, H. (1997). Step towards indicators of sustainable development: linking economic and ecological concepts. Ecological Economics, 20, 25−36.

Robinson, J. B. (2004). Understanding and applying decision support systems in Australian farming systems research. PhD Thesis, University of Western Sydney, NSW, Australia.

Rogers, C. A., Fitzgerald, A. C., Carr, M. A., Covey, B. R., Thomas, J. D. & Looper, M. L. (2004). On-Farm management
decisions to improve beef quality of market dairy cows. Journal of Dairy Science, 87, 1558−1564.

Rogers, Y., Sharp, H. & Preece, J. (2011). Interaction Design: Beyond Human-Computer Interaction. Hoboken, NJ: John Wiley.

Rossi, V., Salinari, F., Poni, S., Caffi, T., Bettati, T., (2014). Addressing the implementation problem in agricultural decision support systems: the example of vite.net®. Computers and Electronics in Agriculture, 100, 88−99.

Rotz, C. A., Buckmaster, D. R. & Comerford, J. W. (2005). A beef herd model for simulating feed intake, animal performance, and manure excretion in farm systems. Journal of Animal Science, 83, 231−242.

Serjsen, K. (2005). Mammary Development. Calf and heifer rearing: principles of rearing the modern dairy heifer from calf to calving (ed. PC Garnsworthy), pp. 237−251. Nottingham University Press, Nottingham, UK.

Shamay, A., D. Werner, U. Moallem, H.Barash, & I. Bruckental. (2005). Effect of nursing management and skeletal size at weaning on puberty, skeletal growth rate, and milk production during first lactation of dairy heifers. Journal of Dairy Science, 88, 1460−1469.

Shepherd, M. & Wheeler, D. (2010). OVERSEER® Nutrient Budgets – Thoughts on Developing a Decision Support Tool. AgResearch Ltd. http://www.overseer.org.nz/LinkClick.aspx?fileticket=0ZZecZ-af7k%3D&tabid=81.

Smith, J. W., Ely, L. O. & Chapa, A. M. (2000). Effect of region, herd size, and milk production on reasons cows leave the herd. Journal of Dairy Science, 83, 2980−2987.

Smith, J., Sones, K., Grace, D., MacMillan, S., Tarawali, S. & Herrero, M., (2012). Beyond milk, meat, and eggs: Role of livestock in food and nutrition security. Animal Frontiers, 3, 6−13.

Steinbock, L., Nasholm, A., Berglund, B., Johansson, K. & Philipsson, J. (2003). Genetic effects on stillbirth and calving difficulty in Swedish Holsteins at first and second calving. Journal of Dairy Science, 86, 2228−2235.

Stewart, A. Edwards, D. & Lawrence, A. (2013). Improving the science–policy–practice interface: decision support system uptake and use in the forestry sector in Great Britain. Scandinavian Journal of Forest Research. http://dx.doi.org/10.1080/02827581.2013.

Stonehouse, D. P., Vos, G. W. D. & Weersink, A. (2002). Livestock manure systems for swine finishing enterprises. Agricultural Systems, 73, 279−296.

Tamayo, R. A. C., Ibarra, M. G. L., & Macias, J. A. G. (2010). Better crop management with decision support systems based on wireless sensor networks. 7th International Conference on Electrical Engineering Computing Science and Automatic Control, Chiapas, Mexico.

The Results of Dairy Herd Milk Recording in Slovak Republic. (2016). http://pssr.sk/wp-content/uploads/

Turban, E., Aronson, J. E., Liang, J. E. & Sharda, R. (2007). Decision
support and business intelligence systems (8th ed.). Upper Saddle River, New Jersey, USA: Pearson, Prentice Hall.

Valls-Donderis, P., Duncan, R., Peace, A., Stewart, A., Lawrence, A. & Galiana, F. (2013). Participatory development of decision support systems: which features of the process lead to improved uptake and better outcomes? Scandinavian Journal of Forest Research. http://dx.doi.org/10.1080/02827581.2013. 837950

Van Arendonk, J. A. M. & Dijkhuizen, A. A. (1985). Studies on the replacement policies in dairy cattle. III. Influence of variation in reproduction and production. Livestock Production Science, 13, 333−349.

Van Arendonk. (1985). Studies on the replacement policies in dairy cattle. II. Optimum policy and influence of changes in production and prices. Livestock Science, 13(2), 101−121.

Van Calker, K. J., Berentsen, P. B. M., Giesen, G. W. J. & Huirne, R. B. M. (2005). Identifying and ranking attributes that determine sustainability in Dutch dairy farming. Agriculture and Human Values, 22, 53−63. https://doi.org/10.1007/s10460-004-7230-3

Van Meensel, J., Lauwers, L., Kempen, I., Dessein. J. & van Huylenbroeck, G. (2012). Effect of a participatory approach on the successful development of agricultural decision support systems: The case of Pigs2win. Decision Support Systems, 54, 164−172.

Van Passel, S., & Meul, M. (2010). Multilevel sustainability assessment of farming systems: a practical approach. Proceedings of the 9th European IFSA Symposium, pp. 791−800.

Van Passel, S., Nevens, F., Mathijs, E., & Van Huylenbroeck, G. (2007). Measuring farm sustainability and explaining differences in sustainable efficiency. Ecological Economics, 62(1), 149−161. http://doi.org/10.1016/j.ecolecon.2006.06.008

Van Schaik, G., Nielen, M. & Dijkhuizen, A. A. (2001). An economic model for on farm decision support of management to prevent infectious disease introduction
into dairy farms. Preventive Veterinary Medicine, 51, 289−305.

Veysset, P., Bebin, D. & Lherm, M. (2005). Adaptation to Agenda 2000 (CAP reform) and optimisation of the farming system of French suckler cattle farms in the Charolais area: a model-based study. Agricultural Systems, 83, 179−202.

Volk, M., Lautenbach, S., van Delden,. H, Newman, L. T. H. & Seppelt, R. (2010). How can we make progress with decision support systems in landscape and river basin management? Lessons learned from a comparative analysis of four different decision support systems. Environmental Management, 46, 834−849.
Waas, T., Hugé, J., Verbruggen, A., & Wright, T. (2011). Sustainable Development: A Bird's Eye View. Sustainability, 3(12), 1637−1661. http://doi.org/

Wathes, D. C., Brickell, J. S. Bourne, N. E., Swalia A. & Cheng, Z. (2008). Factors influencing heifer survival and fertility on commercial dairy farms. Animal, 2(8), 1135−1143 & The Animal Consortium. http://doi.org/10.1017/S1751731108002322

Weaver, P. M. & Rotmans, J. (2006). Integrated sustainability assessment: What is it, why do it and how? International Journal of Innovation and Sustainable Development, 1(4), 284−303.

Whittaker, C., McManus, M. & Smith, P. (2013). A comparison of carbon accounting tools for arable crops in the United Kingdom. Environmental Modelling & Software, pp. 1−12. http://dx.doi.org/10.1016/j.envsoft.2013.03.015.

Woodward, S. J. R., Romera, A. J., Beskow, W. B. & Lovatt, S. J. (2008). Better simulation modelling to support farming systems innovation: review and synthesis. New Zealand Journal of Agricultural Research, 51, 235−252.

Young, K. D. & Van Aarde, R. J. (2011) Science and elephant management decisions in South Africa. Biological Conservation, 144, 876−885

Záhradník, M. (2017). Economic optimization of livestock production systems – EkonMOD milk tool. BIOEAST conference. Ministry of Agriculture, the Research Institute of Agricultural Economics and the National Chamber of Agricultural Economics on 21-22 February, Budapest.

Záhradník, M. (2017). The sustainability of milk production in Slovakia: dissertation thesis. Nitra: SPU v Nitre, 131 p. http://c.?fn=detailBiblioForm&sid=FBA0A0C68B9B2F0CA2CF5BED718F

Záhradník, M., Huba, J., Brestenský, V. & Kumičík, M. (2018). EkonMOD milk – interaktívny model farmy dojníc [EkonMOD milk – interactive model of a dairy farm]. AGROmagazín, 20(5), 30−31.

Záhradník, M. & Huba, J. (2018). Vek jalovíc pri prvom otelení je ekonomicky významným ukazovateľom, jeho optimalizáciu podporuje platforma EkonMOD milk [Heifers age at first calving is an important economic indicator, its optimimisation is supported by the EkonMOD milk tool]. Mini Info, 11(4), 23−26.

Záhradník, M. & Pokrivčák, J. (2016). Decision support tool for replacement heifer management: A strategy comparison. In: International Scientific Days 2016: "The Agri-Food Value Chain: Challenges for Natural Resources Management and Society": Nitra, SR, 19.-20. 5. 2016: Book of Conference Proceedings. Nitra, 1002-1008. ISBN 978-80-552-1503-7. (Book of Abstracts: ISBN 978-80-552-1500-6, p. 146). http://spu.fem.uniag.sk/mvd2016/proceedings/en/articles/s12/zahradnik_pokrivcak.pdf

Záhradník, M. & Pokrivčák. J. (2016). Using decision support tool for dairy farm management to assess the economic impact of various feeding scenarios. In: International Scientific Days 2016: "The Agri-Food Value Chain: Challenges for Natural Resources Management and Society": Nitra, SR, 19.-20. 5. 2016: Book of Conference Proceedings. Nitra, 1009-1013. ISBN 978-80-552-1503-7. (Book of Abstracts: ISBN 978-80-552-1500-6, s. 147). http://spu.fem.uniag.sk/mvd2016/proceedings/en/articles/s12/zahradnik_pokrivcak2.pdf

Záhradník, M., Pokrivčák. J. & Tóth, M. (2018). Modelling the milk production and economics in a dairy farm. In: International Scientific Days 2018: "Towards Productive, Sustainable and Resilient Global Agriculture and Food Systems": Nitra, SR, 16.-17. 5. 2018: Book of Conference Proceedings. Nitra. ISBN 978-80-552-1503-7

Zhong-xiao, L., & Yimit, H. (2008). Environmental decision support system development for soil salinization in the arid area oasis. International Seminar on Business and Information Management.

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