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Key references

  1. Andersen, H.M.-L., E. Jørgensen, L. Dybkjær & B. Jørgensen. 2008. The ear skin temperature as an indicator of the thermal comfort of pigs. Applied Animal Behaviour Science 113, 43–56.
  2. Aparna, U., L. J. Pedersen & E. Jørgensen. 2011. Pre-parturition behaviour of sows measured by sensors. Proc. of the 5th ECPLF conference, Prague, July 11-14.
  3. Aparna, U., L. J. Pedersen & E. Jørgensen. 2011. Hidden phase-type Markov model for the prediction of farrowing in loose housed sow: Estimation. Submitted to Computers and Electronics in Agriculture.
  4. Cornou, C. & S. Lundbye-Christensen. 2010. Classification of sows’ activity types from acceleration patterns using univariate and multivariate models. Computers and Electronics in Agriculture 72, 53-60.
  5. Cornou, C. & S. Lundbye-Christensen. 2012. Modeling of sows' diurnal activity pattern and detection of parturition using acceleration measurements. Submitted to Computers and Electronics in Agriculture 80, 97-114.
  6. Cornou, C., S. Lundbye-Christensen & A.R. Kristensen. 2011. Modeling and monitoring sows' activity types in farrowing house using acceleration data. Computers and Electronics in Agriculture 76, 316-324.
  7. Damm, B.I., T. Heiskanen, L. J. Pedersen, E. Jørgensen & B. Forkman. 2010. Sow preferences for farrowing under a cover with and without access to straw. Applied Animal Behaviour Science 126, 97 – 104.
  8. Ferrari, S., M. Silva, M. Guarino, J.M. Aerts & D. Berckmans. 2008. Cough sound analysis to identify respiratory infection in pigs. Computers and Electronics in Agriculture 64, 318-325.
  9. Greve, J. 1995. The dynamic ranking approach and its application in piglet production. PhD Thesis. Dina Research Report No. 35.
  10. Halekoh, U., E. Jørgensen, M. B. Jensen, L. Pedersen, M. Studnitz & S. Højsgaard. 2007. Ranking of simultaneously presented choice options in animal preference experiments. Biometrical Journal 49, 599–612.
  11. Jørgensen, E. 2007. Weight estimation for pigs via image analysis. NJF Report, 3 (2): 379–380, 2007.
  12. Jørgensen, E., A.R. Kristensen & D. Nilsson. Markov LIMID Processes for Representing and Solving Renewal Problems. Submitted to Annals of Operations Research.
  13. Kristensen, A. R. 1988. Hierarchic Markov processes and their applications in replacement models. European Journal of Operational Research 35, 207-215.
  14. Kristensen, A. R. 1992. Optimal replacement in the dairy herd: A multi component system. Agricultural Systems 39, 1-24.
  15. Kristensen, A.R. & E. Jørgensen. 2000. Multi-level hierarchic Markov processes as a framework for herd management support. Annals of Operations Research 94, 69-89.
  16. Kristensen, A.R. & T.A. Søllested. 2004. A sow replacement model using Bayesian updating in a three-level hierarchic Markov process II. Optimization model. Livestock Production Science 87, 25-36.
  17. Lauritzen, S.L. & D. Nilsson. 2001. Representing and solving decision problems with limited information. Management Science 47, 1235-1251.
  18. Madsen, T.N. & A.R. Kristensen. 2005. A model for monitoring the condition of young pigs by their drinking behavior. Computers and Electronics in Agriculture 48, 138-154.
  19. Madsen, T.N., S. Andersen & A.R. Kristensen. 2005. Modelling the drinking pattern of young pigs using a state space model. Computers and Electronics in Agriculture 48, 39-62.
  20. Marchioro, G.F., C. Cornou, A.R. Kristensen & J. Madsen.  Sows' Activity Classification Device using Acceleration Data - a Resource Constrained Approach. Computers and electronics in Agriculture 77, 110-117.
  21. Nielsen, L.R., E. Jørgensen & S. Højsgaard. 2011. Embedding a state space model into a Markov decision process. Annals of Operations Research 190, 289-309.
  22. Nielsen, L.R., E. Jørgensen, A. R. Kristensen & S. Østergaard. 2010. Optimal replacement policies for dairy cows based on daily yield measurements. Journal of Dairy Science 93, 75-92
  23. Nielsen, L.R. & A.R. Kristensen. 2006. Finding the K best policies in a finite-horizon Markov decision process. European Journal of Operational Research 175, 1164-1179
  24. Oliviero, C., M. Pastell, M. Heinonen, J. Heikkonen, A. Valros, J. Ahokas, O. Vainio, & O.A.T. Peltoniemi. 2008. Using movement sensors to detect the onset of farrowing. Biosystems Engineering 100, 281–285.
  25. Ostersen, T., C. Cornou & A. R. Kristensen. 2010. Detecting Oestrus by Monitoring Sows’ Visits to a Boar. Computers and Electronics in Agriculture 74, 51-58.
  26. Rodríguez, S.V., T.B. Jensen, L.M. Plà & A.R. Kristensen. 2011. Optimal replacement policies and economic value of clinical observations in sow herds. Livestock Science 138, 207-219.
  27. Tu, G.J., H. Karstoft, L. J. Pedersen & E. Jørgensen. 2011. Tracking of sows in farrowing pens using image analysis. Submitted to Computers and Electronics in Agriculture.