[Dairy Production Economy]. Ed. M. Vestergaard 28–3<strong>1.</strong> http://www.lr.dk/oekonomijura/oekonomiogjura/07-1-17pjece2003.htm. Assessed April 2006. Noe, E., N. Halberg, <strong>and</strong> J. Reddersen, 2005. Indicators <strong>of</strong> biodiversity <strong>and</strong> conservational wildlife quality on Danish organic farms for use in farm management: a multidisciplinary approach to indicator development <strong>and</strong> testing. Journal <strong>of</strong> Agricultural <strong>and</strong> Environmental Ethics 18: 383–414. Oudshoorn, F.W. <strong>and</strong> I.J.M. de Boer. 2005. Survey <strong>of</strong> the sustainability aspects <strong>of</strong> Automatic Milking Systems (AMS) in organic dairy production. In Precision Livestock Farming ’05. ed. S. Cox, 193-199. Wageningen: Wageningen Academic Publishers. Rasmussen, J.B. 2000. Arbejdsbehov ved AMS [Labour use with AMS]. Farm test report, www.lr.dk/bygningerogmaskiner/informationsserier/farmtest/arbejdsfirbrug_ams.htlm. Assessed April 2006. Rasmussen, M.D. 2006. Personal communication Raun, C. <strong>and</strong> M.D. Rasmussen. 200<strong>1.</strong> Afgræsningens effekt på malkefrekvens, mælkeydelse og driftsøkonomi i automatiske malkesystemer [The effect <strong>of</strong> grazing on milking frequency, milk yield <strong>and</strong> gross margin for automatic milking systems]. Report No. 26, Livestock Production, Danish Institute <strong>of</strong> Agricultural Sciences, Foulum. http://web.agrsci.dk/djfpublikation/index.asp?action=show&id=539. Assessed April 2006. Rotz, C.A., C.U. Coiner, K.J. Soder. 2003. Automatic milking systems, farm size, <strong>and</strong> milk production. Journal <strong>of</strong> Dairy Science 86: 4167–4177 Somers, J.G.C.J., K. Frankena, E.N. Noordhuizen-Stassen, <strong>and</strong> J.H.M. Metz. 2003. Prevalence <strong>of</strong> claw disorders in Dutch dairy cows exposed to several floor systems. Journal <strong>of</strong> Dairy Science 86: 2082– 2093 Søegaard, K., P. Lund, J. Vinther, S.O. Petersen, <strong>and</strong> O. Aaes. 200<strong>1.</strong> Afgræsning med malkekøer i praksis, afgrødekvalitet, botanisk sammensætning og management [Grazing with dairy cows, practice, forage quality, botanical composition <strong>and</strong> management]. Report No. 51, Livestock Production, Danish Institute <strong>of</strong> Agricultural Sciences, Denmark. http://web.agrsci.dk/djfpublikation/index.asp?action=show&id=546. Assessed April 2006. Torjusen, H., L. Sangstad, K. O’Doherty Jensen, <strong>and</strong> K. Kjærness. 2004. European conceptions <strong>of</strong> organic food. A review <strong>of</strong> available research. National Institute for Consumer Research, Oslo. http://orgprints.org/00002490. Assessed April 2006. Van der Zijpp, A.J. 200<strong>1.</strong> Animal production systems: on integration <strong>and</strong> diversity. Inaugural address, Wageningen University <strong>and</strong> Research.. Van Dooren, H.J.C., E. Spörndly, <strong>and</strong> H. Wiktorsson. 2003. Automatic milking <strong>and</strong> grazing, applied grazing strategies. Deliverable 25, QLK5-2000-31006, 2002, 26–27. >http://www.automatic milking.nl. Assessed April 2006. Van Ruiterbeek, B. 2005. EKO monitor 2005 [<strong>Organic</strong> monitor 2005]. >http://www.biologica.nl/ eko- monitor/. Assessed April 2006. Verhoog, H.,M. Matze, E. Lammerts Van Bueren, <strong>and</strong> T. Baars. 2003. The role <strong>of</strong> the concept <strong>of</strong> nature (naturalness) in organic farming. Journal <strong>of</strong> Agricultural <strong>and</strong> Environmental Ethics 16: 29– 49. Veysset, P., P. Wallet, <strong>and</strong> E. Prugnard. 200<strong>1.</strong> Automatic milking systems: characterizing the farms equipped with AMS, impact <strong>and</strong> economic simulations. In ICAR Technical Series 7. ed. A. Rosati, S. Mihina, <strong>and</strong> C. Mosconi, 141–150.Rome, Italy. Water, C. 2002. Economische resultaten geven reden tot zorg [Economic results give reason to worry]. On request from Dutch extension service >http://www.dlv.nl. 38 <strong>Sustainable</strong> <strong>Technology</strong> in <strong>Organic</strong> Dairy Farming
Chapter 3 Quantification <strong>of</strong> Sustainability Indicators on <strong>Organic</strong> Dairy Farms in Denmark using Automatic or Conventional Milking Systems F. W. Oudshoorn¹, T. Kristensen, A. J. Van der Zijpp², <strong>and</strong> I. J. M. de Boer² ¹ Aarhus University, Faculty <strong>of</strong> Agricultural Sciences, Dept. <strong>of</strong> Agricultural Engineering ² Wageningen University, Wageningen Institute <strong>of</strong> Animal Sciences, Animal Production Systems Group (Submitted) Thesis Frank W. Oudshoorn 39
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- Page 5 and 6: Abstract Development of organic dai
- Page 7: Contents 1 General introduction 9 2
- Page 10 and 11: 1.1 Organic dairy farming in Denmar
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- Page 14 and 15: a. What are the economic, ecologica
- Page 16 and 17: References Anonymous, 1977. Eindrap
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- Page 20 and 21: Abstract The aim of this study was
- Page 22 and 23: Table 2. Structural development of
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- Page 28 and 29: According to the advisors, reasons
- Page 30 and 31: Table 5. Dutch (NL) and Danish (DK)
- Page 32 and 33: 2.5 Discussion 2.5.1 Perceptions: D
- Page 34 and 35: ecause of a recently published arti
- Page 36 and 37: References Alrøe, Hugo and Erik St
- Page 40 and 41: Abstract The objective of this rese
- Page 42 and 43: data set. As the size of the herd w
- Page 44 and 45: The N output was computed as the N
- Page 46 and 47: of necessary supplementary silage (
- Page 48 and 49: was compensated by the above-mentio
- Page 50 and 51: level. The most important reason fo
- Page 52 and 53: Animal Health Culling rate was foun
- Page 54 and 55: An inquiry made on motivations to i
- Page 56 and 57: References Anderson, T. W., and D.
- Page 58 and 59: Strudsholm, F., and K. Sejersen. 20
- Page 60 and 61: Abstract The objective of this pape
- Page 62 and 63: 4.2.2 Sward and herd management Thr
- Page 64 and 65: Kristensen et al. (2007). Indoor ex
- Page 66 and 67: Treatment P4, 4 hours of grazing, f
- Page 68 and 69: Table 3. Total number of defecation
- Page 70 and 71: Table 5. Time budget for dairy cows
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- Page 78 and 79: Poulsen, H.D., Kristensen, V.F., 19
- Page 80 and 81: Abstract The objective of this stud
- Page 82 and 83: practices in Denmark. Objections br
- Page 84 and 85: evaluated based on a costs-benefit
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However, we assumed a minor increas
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lactation months when the minimum i
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Economic evaluation For each scenar
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310 for N2O). GHG emissions are com
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Table 6. Production parameters esti
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include the purchase of heifers as
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social dimension in the analysis. I
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Often “kg milk” (fat corrected
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References Alrøe, H.F. Noe, E. 200
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IFOAM, 2008. Principles of organic
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Swedish Dairy Farming. Report FOOD2
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6.1 Introduction In this chapter th
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quantity, besides from being an imp
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additional money, and research shou
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area, weather, control of grass gro
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dairy industry, retail and consumer
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6.3.5 Mobile automatic milking Scen
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6.4 General Conclusions The conclus
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Hovi, M., A., Sundrum, A., Thamsbor
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Summary Organic agriculture provide
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Cows allowed grazing at pasture for
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Samenvatting De biologische landbou
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Dit is onderzocht in een beweidingp
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Resumé Økologisk landbrug leverer
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afgræsning med mælk fra ni timers
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Future Perspectives Based on the re
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Oudshoorn, F. W. , Nadimi, E. S. 20