Publications for Erik Jørgensen

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2003



E. Jørgensen (2003). Foderforbrug pr kg tilvækst hos slagtesvin. fordeling mellem forbrug til vedligehold og til produktion i besætninger under den rullende afprøvning. Internal report, Biometry Research Unit, Danish Institute of Agricultural Sciences, 1 pp. 1-10.

E. Jørgensen (2003). Note concerning non-informative priors in the context of sensitivity estimation. Internal report, Biometry Research Unit, Danish Institute of Agricultural Sciences, 3 pp. 1-10.


2002



Höhle, M. and E. Jørgensen, (2002). Estimating Parameters for Stochastic Epidemics. Dina Research Report no. 102, 2002.

Jørgensen, E. and A.P. Ravn (eds) (2002). Dina Research School: Workshop November 28-29, 2002. Hybrid Systems. Tune Landboskole. Dina Notat No. 103. pp 14.

Jørgensen, E., (2002). Evaluation of height measurement for automatic weight assessment of slaughter pigs Danmarks JordbrugsForskning, Biometry Research Unit, Technical Report 2002-01. 9 pp.

Jørgensen, E., (2002). Circadian variation : Estimation of time at maximum. Danmarks JordbrugsForskning, Biometry Research Unit, Internal Report 2002-01. 19 pp.

Jørgensen E. (2002) Diagnostic testing: Model estimation and decision support using graphical models. Abstract submitted for the EFITA 2003 Congress in Hungary.

Jørgensen E. (2002) Decision theoretic troubleshooting applied to the tail biting problem in pigs Abstract submitted for the EFITA 2003 Congress in Hungary.

Jørgensen E. & Toft N. (eds.) (2002) Dina Workshop: Sequential Monitoring in Animal Husbandry: Controlling Error Rates. Dina Notat No. 98, March 2002. pp 9.

Jørgensen E. & Waagepetersen. R. (eds.) (2002) Dina Research School: Workshop April 18-19, 2002. Dataseries, state-space models, and the Kalman filter. Dina Notat No. 99 - April 2002 pp. 44

Toft, N., E. Jørgensen., S. Højsgaard (2002) Diagnosing Diagnostic Tests: Evaluating the precision of different approaches for estimation of sensitivity and specificity. SVEPM Cambrigde 2002, pp. 10.

Toft, N., S. S. Nielsen, E. Jørgensen. (2002) Diagnostic testing with multiple classification. First European Workshop on Sequential Decisions under Uncertainty in Agriculture and Natural Resources. Toulouse, France, September 19-20. p. 83-88.

Jensen, K.H., Vestergaard, E.-M., Jørgensen, E. & Pedersen, B.K., (2002). Sammenhæng mellem stimiljø og aggression hos slagtesvin under produktionsforhold. Intern rapport nr. 162 fra Danmarks Jordbrugsforskning, Bilag fra Temamøde "Aggression hos søer og slagtesvin samt Strategisk fodring til styring af kødkvalitet" på DJF d. 20. August, 25-29.

Studnitz, M., Jensen, K.H. & Jørgensen, E., (2002). Storflokke - betydning af grupperingsstrategier og stiindretning. Intern rapport nr. 162 fra Danmarks Jordbrugsforskning, Bilag fra Temamøde "Aggression hos søer og slagtesvin samt Strategisk fodring til styring af kødkvalitet" på DJF d. 20. August, 15-19.

Højsgaard, S. & Jørgensen, E., (2001). Mixed Models Applied in Agricultural Sciences II based on A Course in Mixed Models for Use in Research in Animal Nutrition and Physiology. Danmarks JordbrugsForskning, Biometry Research Unit, Internal Report 2002-04. 373 pp.


2001



Højsgaard, S. & Jørgensen, E., (2001). Lecture slides on mixed models based on a course in mixed models for use in animal health and animal welfare research. Danmarks JordbrugsForskning, Biometry Research Unit, Internal Report 2001-04. 373 pp.

Højsgaard, S. & Jørgensen, E., (2001). Mixed models applied in agricultural sciences based on a course in mixed models for use in animal health and animal welfare research. Internal report 2001-06. 133 pp.

Højsgaard, S. & Jørgensen, E., (2001). Note concerning analysis of stratified data - objective evaluation of health status in Danish pig herds. Danmarks JordbrugsForskning, Biometry Research Unit, Internal Report 2001-05. 11 pp.

Jørgensen, E. (2001) Decision support systems in animal production: A Bayesian future. ed. Jérôme Steffe. Proceedings from the Third conference of the European Federation for Information technology in Agriculture, Food and the Environment. June 18-20. Montpellier, France. vol 2. p 367-372 Fullscreen Slides. (PDF) Slides for Handouts. (PDF)

Takai, H., G. Zhang, P. Dahl, B. Bjerg, E. Joergensen and J.P. Nielsen (2001) Full-scale model experiments on airborne particle transport between pigs in a room. Proc. 6th int. symp. on livestock environment, Kentucky, USA. ASAE publ. 701P0201, 571-578.

Toft,N, A.R. Kristensen and E. Jørgensen (2001) Tradeoff's in modeling epidemic disease in slaughter pig production ed. Jérôme Steffe. Proceedings from the Third conference of the European Federation for Information technology in Agriculture, Food and the Environment. June 18-20. Montpellier, France. vol 2. p 391-396. Fullscreen Slides. (PDF)

Jørgensen, E. (2001) Fra Registrering til Information. Dyrlægeregningens størrelse afspejler sundheden i en kvægbesætning !?. Indlæg ved Dansk Boologisk Selskabs forårsseminar 2001, 19. april. Slides i skærmformat. Slides i kompakt form til udskrift.

Studnitz, M., K.H. Jensen, E. Jørgensen, K. K. Jensen. (2001) The effect of nose ringing on explorative behaviour in gilts. Submitted to Animal Welfare.

Studnitz, M., K.H. Jensen, E. Jørgensen. (2001) Explorative behaviour in outdoor nose ringed and unringed gilts exposed to different tests. Submitted to Applied Animal Behaviour Science.

Studnitz, M., Jensen, K.H., Jørgensen, E. & Jensen, K.K. (2001) , The effect of nose ringing on exploratory behaviour in gilts. Proc. 25th Congress of ISAE, 4-9 August, California, USA, 55.

Toft, N., A.R. Kristensen, E. Jørgensen (2001). A framework for decision support related to epidemic disease in slaughter pig production. submitted to European Journal of Operations Research


2000



Höhle, M., Jørgensen, E. & Nilsson, D. (2000) Modeling with LIMIDs - Examplified by Disease Treatment in Slaughter Pigs. in Proc. from International Symposium on Pig Herd Management Modelisation. Lleida, Spain, September 18-19, 2000 p 17-26.

Kristensen A.R & Jørgensen, E. (2000). Multi-level hierarchic Markov processes as a framework for herd management support. Annals of Operations Research. 94 p. 69-89

Jensen,K.H., L.S. Sørensen, D. Bertelsen, A.R. Pedersen, E. Jørgensen, N.P. Nielsen & K.S. Vestergaard (2000). Management factors affecting activity and aggression in dynamic group housing systems with electronic sow feeding - a field trial. Animal Science. 71 p. 535-546

Jørgensen, E., Søllested, T.A. & Toft, N. (2000) Evaluation of SIR epidemic models in slaughter pig units using Monte Carlo simulation in Proc. from International Symposium on Pig Herd Management Modelisation. Lleida, Spain, September 18-19, 2000 p 27-36. Slide presentation as pdf-file. and Manuscript as a pdf-file.

Jørgensen, E. (2000). Calibration of a Monte Carlo simulation model of disease spread in slaughter pig units. Computers and Electronics in Agriculture. 25 p. 245-259

Jørgensen, E. (2000). Elements of Bayesian network specification in an animal health economy research project. Internal Report 2000-02. Biometry Research Unit. Danish Institute of Agricultural Sciences. pp. 24.

Jørgensen, E. (2000). Decision Support Systems in Animal Production. A Bayesian Future ? Abstract submitted to the symposium on "Decision support systems in animal production" The 3rd conference of the European Federation for Information Technology in Agriculture, Food and the Environment. Montpellier, France, June 18-20, 2001.

Jørgensen, E. (2000). Monte Carlo simulation models: Sampling from the joint distribution of 'State of Nature'-parameters. p. 73-84. Proc. of the symposium on "Economic modelling of Animal Health and Farm Management". November 23-24, 2000 Wageningen, The Netherlands. van der Fels-Klerx, I. and Mourits, M. ed. Farm Management Group, Department of Social Sciences, Wageningen University. Slide presentation as pdf-file

Nilsson, D. & E. Jørgensen (2000). Representing and Evaluating POMDP's with Limited Memory. abstract Beyond MDPs: Representations and Algorithms. Workshop at the Conference Uncertainty in Artificial Intelligence - 2000, 30/6-4/7.. Stanford, California.

Toft, N., Jørgensen, E. & Dethlefsen, C. (2000) Estimation of farm specific parameters in a longitudinal model for litter size with variance component and random dropout. in Proc. from International Symposium on Pig Herd Management Modelisation. Lleida, Spain, September 18-19, 2000 p 127-136.

Toft, N., A.R. Kristensen, E. Jørgensen (2000). A framework for decision support related to an infectious disease in slaughter pig production. p. 109-118 Proc. of the symposium on "Economic modelling of Animal Health and Farm Management". November 23-24, 2000 Wageningen, The Netherlands. van der Fels-Klerx, I. and Mourits, M. ed. Farm Management Group, Department of Social Sciences, Wageningen University.


1999



Thodberg, K. L., K. H. Jensen, M. S. Herskin & E. Jørgensen. (1999). Influence of environmental stimuli on nest Building and farrowing behaviour in domestic sows. Applied Animal Behaviour Science. 63 p. 131-144

Kristensen, A.R.  & Jørgensen, E. (1999). Decision Support Models. Proc. 25th International Dairy Congress, Aarhus 21.-24. September 1998. Vol 3. Future Milk Farming p. 145-163

Jørgensen, E. & N. Toft (1999). A Bayesian network based monitoring system for sow management Computers and Electronics in Agriculture. (submitted)


1998



Jørgensen, E. (1998). Techniques for reuse of Monte Carlo simulation runs. Dina Notat 77, pp. 1-33.

Jørgensen, E. (ed.) (1998). Dina Workshop 1998. Forskningscenter Foulum. Dina Notat 75, pp. 1-21.

Jørgensen, E. & Kristensen, A.R. (1998). Edb letter beslutningen Landsbladet Svin, 11, November 1988, p. 18.

Jørgensen, E. (1998). Stochastic modelling of pig production. Working Paper: Growth Models. Dina Notat 73, pp. 1-23.

Vestergaard, E.-M. & Jørgensen E. (1998). Stochastic Dynamic Modelling of Respiratory Diseases in Pigs. . Poster at the Conference Biology of Animal Stress. Implications for Animal Well-being. August 16.-19. 1988. University of Califonia. Abstract.

Jørgensen E. (1998). Principper for planlægning af forsøg. Bilag til kursus A-36. Statistisk forsøgsplanlægning og generelle lineære modeller. Koldkærgård Landboskole, d. 3-7. august 1998. dupl.

Jørgensen, E. & S.L. Lauritzen (1998). Bedre beslutninger med bayesianske net. Naturens Verden, no. 7. p. 280-287.

Jørgensen, E. (1998). Stochastic modelling of pig production. Working Paper: Model of management. Dina Notat 71, pp. 1-30.

Jørgensen, E. (1998).  Stochastic modelling of pig production. Working Paper: Measurements. Dina Notat 64, pp. 1-16.

Jørgensen, E. (1998).  Stochastic modelling of pig production. Working Paper: Reproduction Model. Dina Notat 65, pp. 1-26.

Jørgensen, E. & Pedersen A.R. (1998 ). How to obtain those nasty standard errors from transformed data - and why they should not  be used. Biometry Research Unit - Internal report 7. Danish Institute of Agricultural Sciences. pp 20


1997



Jørgensen, E. (1997). An Object Oriented Simulation Model of a Pig Herd with Emphasis on Information Flow in Mating Management. Proc.of the Dutch/Danish Symposium on Animal Health and Management Economics. Copenhagen, January 23-24 1997. (Anders Ringgaard Kristensen, ed.) Dina Notat No. 56. .  Abstract.  Paper.

Jørgensen, E. (1997). Calibration of a Monte Carlo Simulation Model of Disease Spread in Slaughter Pig Units. Proc. First European Conference for Information Technology in Agriculture The Royal Veterinary and Agricultural University, Copenhagen, Denmark.  January 15-18 1997. (H. Kure, I Thysen & A. R. Kristensen, eds.).  Full Paper

Jørgensen, E. (1997). Principper bag almen beslutningsteori illustreret ved problemstillinger fra sohold. Biometry Research Unit - Internal report 97-5 Department of Biometry and Informatics. Danish Institute of Agricultural Sciences. pp. 13

Jørgensen, E. (1997). Potential Application Areas for Bayesian Networks within Sow Production. Biometry Resarch Unit - Internal report 97-6 Department of Biometry and Informatics. Danish Institute of Agricultural Sciences. pp 11

Kristensen, A. R. and Jørgensen, E. (1997). Simultaneous optimization of management decisions at the operational and tactical level in animal production. in Risk Management Strategies in Agriculture: State of the Art and Future Perspectives. Mansholt studies 7. Huirne, R.B.M. et al. ed. p 215-223. Proc. EUNITA seminar, January 7-10, 1996. Wageningen, The Netherlands.


1996



Brandl, N. and Jørgensen, E. (1996). Determination of Live Weight in Pigs from Dimensions by Image Analysis. Computers and Electronics in Agriculture 15, pp. 57-72.

Dethlefsen, C. & Jørgensen, E. (1996). A longitudinal model for litter size with variance components and random dropout. Dina Research Report 50, Research Centre Foulum, P.O. Box 23, DK-8830 Tjele, Denmark. (PDF-fil)

Kristensen, A. R. and Jørgensen, E. (1996). Multi-level hierarchic Markov processes as a framework for herd management support. Dina Research Report 41, pp. 1-29

Kristensen, A.R. & E. Jørgensen. 1996. Textbook notes of herd management: Basic concepts. Dina Notat No. 48. PDF-format

Jensen, K. H., Pedersen, L. J., Heller, K. E., Ladewig, J. and Jørgensen, E. (1996). Intermittent Stress in pigs: effects on behavior, pituarity-adrenocortical axis, growth and gastric ulceration.. Physiol. Behav. 59 pp 741-748.

Jørgensen E. (1996). Planlægning af forsøg. Bilag til kursus A-36. Statistisk forsøgsplanlægning og generelle lineære modeller. Koldkærgård Landboskole, d. 6-10. maj 1996.dupl.

Jørgensen, E. (1996). Textbook notes of herd management: From registration to information. Dina Notat 51, pp. 1-130. PDF-format

Jørgensen, E. (1996). Textbook notes of herd management: Influence diagrams - potential use and current limitations. Dina Notat 52, pp. 1-16. PDF-format

Jørgensen, E. (1996). Textbook notes of herd management: Monte Carlo simulation techniques. Dina Notat 53, pp. 1-42.

Jørgensen, E., C. Dethlefsen & A. R. Kristensen. (1996) Systems for monitoring and decision support with respect to sow longevity. NJF-Utredning/rapport nr 111. Proc. of NJF-seminar no. 265. LONGEVITY OF SOWS. (Ed. V. Danielsen). Research Centre Foulum, 27.-28. March 1996. Postscript-format

Pedersen, L. J., Jensen, K. H. and Jørgensen, E. (1996). Pre- and Postpubertal LH and Estradiol Pattern in Gilts subjected to intermittent Inescapable Electroshock. Acta Vet. Scand. 37, pp. 153-161.


1995



Jensen, K. H., Pedersen, B. K., Pedersen, L. J. and Jørgensen, E. (1995). Well-being in pregnant sows: Confinement vs Group Housing with electronic sow feeding and confinement. Acta Agric. Scand. Sect. A. , Animal Sci. 45, pp. 266-275.

Jensen, K. H., Pedersen, L. J., Hagelsø, A. M. G., Heller, K. E., Jørgensen, E. and Ladewig, J. (1995). Intermittent stress in pigs: behavioral and pituitary-adrenocortical reactivity. Acta Agric. Scand. Sect. A. , Animal Sci. 45, pp. 276-285.

Jørgensen, E. and Kristensen, A. R. (1995). An object oriented simulation model of a pig herd with emphasis on information flow. in FACTs 95 March 7, 8, 9, 1995, Orlando Florida, Farm Animal Computer Technologies Conference. pp. 206-215. PDF-format

Jørgensen, E. , Kristensen, A. R. and Vestergaard, E. -M. (1995). Modelling of Respiratory Disease. Working paper: Generic Disease Model. Dina Notat 40, pp. 1-18.

Jørgensen, E. , Dybkjær, L. , Møller, F. , Studnitz, M. and Jensen, K. H. (1995). Midtvejsrapport for: Udvikling af hensigtsmæssige og velfærdsmæssigt forbedrede systemer og metoder til farende og diegivende søer - specielt sociale mekanismers udvikling og funktion i forskellige løsdriftssystemer til farende og diegivende søer. VEL92-SH4 & VEL92-SJF4. Intern Rapport, Statens Husdyrbrugsforsøg 43,

Kristensen, A. R. and Jørgensen, E. (1995). The application of Markov decision processes as a framework for decision support in animal production. in FACTs 95 March 7, 8, 9, 1995, Orlando Florida, Farm Animal Computer Technologies Conference. pp. 36-145.

Kristensen, A. R. and Jørgensen, E. (1995). Applicational Perspectives of Recent Developments in Dynamic Programming Methods for Herd Management Support. Dina Notat 33, pp. 1-14.

Pedersen, B. K., Ruby, V. and Jørgensen, E. (1995). Quality Evaluation of Equipment and Facilities. in Proc. Animal Behavior and the Design of Livestock and Poultry Systems International Conference. Indianapolis, Indiana april 19-21 1995. pp. 263-276.

Pedersen, B. K., Ruby,V. and Jørgensen. E. (1995) Organisation and application of research and development in commercial pig herds: the Danish approach. In D. P. Hennesy and P. D. Cranwell (eds.): Manipulating Pig Production V. Proceedings of the Fifth Biennial Conference of the Australasian Pig Science Association (APSA) Canberra, November 26 to 29, 1995.


1994



Jensen, K. H., Oksbjerg, N. and Jørgensen, E. (1994). Dietary Salbutamol and Level of Protein: Effects on Acute Stress Response in Pigs. Physiol. Behav. 55 No. 2, pp. 375-379.

Jørgensen, E. (1994). Det etiske regnskab som husdyrbrugerens styringsredskab 1994. I: Etiske regnskaber for husdyrbrug. Intern rapport, SH 32.

Pedersen, O. G., Ruby, V., Pedersen, B. K. and Jørgensen, E. (1994). Organisation and Application of Research and Development in Commercial Pig Herds: The Danish Approach, Landsudvalget for Svin - Danske Slagterier, København.pp. 26.


1993



Jørgensen, E. (1993). The influence of weighing precision on delivery decisions in slaughter pig production. Acta Agric. Scand. Sect. A., Animal Sci. 43, pp. 181-189.

Jørgensen, E. and Ali, N. M. (1993). The Repeatability of Pregnacy Rate in Danish Sow Herds. (dupl pp. 19)

Thysen, I., Jørgensen, E. and Greve, J. (1993). Decision Support in pig production: New Approaches. in Proceedings of the Symposium on Herd Health Decision Support. Utrecht June 15-16. (Report no. SKBS/B2/93-13). pp 125-142.


Earlier



Ali, N. M. and Jørgensen, E. (1992). Determination of Live Weight in Pigs from Dimensions by Image Analysis. in Proc. Symp. Image Analysis in Animal Science. Dina Research Report no 7.

Jørgensen, E. (1992). Sow replacement: Reduction of State Space in Dynamic Programming Model and Evaluation of Benefit from Using the Model. Dina Research Report 6, -21.

Jørgensen, E. (1992). The utility value of information in pig production. Chap 21 in European Association for Animal Production. Commision on Pig Production. Satellite Symposium on: Pig Management Information Systems. Madrid 12th september 1992, Spain. ( Martin Rillo, S., Aumaitre, A., den Hartog, L., Backus, G., Glodek, P., Saiz, F., and Salehar, A., Eds.) INIA Madrid, EAAP Roma, Madrid, Roma. 135-144.

Jørgensen, E., Ruby, V. and Herløv, L. (1992). Review of Danish Experiences with Decision Support Systems in Pig Production. in Proc. of the 4th International Congress for Computertechnology in Agriculture. Paris- Versailles 1st-3rd of june 1992.

Mortensen, B., Ruby, V., Jørgensen, E. and Johansen, B. B. (1992). Automatic data transfer from feeding equipment used in field test herds. Chap 9 in European Association for animal production. Commission on Pig Production. Satellite Symposium on: Pig Management Information Systems. Madrid 12th september 1992, Spain. ( Martin Rillo, S., Aumaitre, A., den Hartog, L., Backus, G., Glodek, P., Saiz, F., and Salehar, A., Eds.) INIA Madrid, EAAP Roma, Madrid, Rome. 55-62.

Mortensen, B., Ruby, V., Jørgensen, E. and Johansen, B. B. (1992). Informatik i svineproduktionen. rapport, Landudvalget for Svin,

Jørgensen E (1991). Den biologiske variation som grundlag for dimensionering af staldanlægget. Bilag til kursus i Svineproduktion, KVL. dupl.

Jørgensen E (1991). Probabilistic Growth Model for Pigs. Paper presented at DINA-Workshop 1991. Ebeltoft 3-4 december. dupl.

Jørgensen, E. and Ruby, V. (1991). Uddrag af rapport fra 3. Internationale kongres om Computerteknologi. Husdyrforskning 1,

Coenen, G. J., Kruse, P. E. and Jørgensen, E. (1990). Grises immunsvar. Miljøfaktorers indflydelse på det antistofafhængige immunsvar hos grise fravænnet ved 3 eller 5 ugers alderen. Meddelelse fra Statens Husdyrbrugsforsøg. 768, pp. 1-4.

Jørgensen E (1990). Evalueringsrapport vedr. Struer egnens bredbåndsforsøg i landbruget. Anvendelse af video i svineproduktionsrådgivningen. dupl.

Danske Slagterier. Svineavl- og produktion (1989). Automatisk Identifikation i Svineproduktionen pp. 28

Hansen, L. L., Blaabjerg, L., Jørgensen, E. and Barton-Gade, P. (1989). Effect of group size, floor type, and straw on aggressive behaviour, skin damage and meat quality. in 40th annual meeting of the EAAP, Session III. 6

Jensen, K. H., Pedersen, L. J. and Jørgensen, E. (1989). Boar Induced Puberty in chronically stressed gilts: Pre- and Post puberal LH and oestradiol pattern. in 40th Annual Meeting of the EAAP, 27-31. august, Dublin, Ireland, 1989. 463-464.

Jørgensen E, Ruby V, Jensen KH and Udesen F (1989). Udnyttelse af ekspertsystemer. dupl.

Jørgensen E (1989). Den biologiske variation som grundlag for dimensionering af staldanlægget. Bilag til kursus i svineproduktion A og B. dupl. pp 26.dupl.

Jørgensen, E. (1988). The use of new communications technology in supporting livestock producers. in Proc. WAAP- 88, Helsinki. Plenary PL11,. pp 152-161.

Jørgensen E and Ruby V (1988). Betydende forhold ved anvendelse af drægtighedstest - metode til vurdering. dupl.

Jørgensen, E. (1985). [Principles of production control in sow production, Ph. D. Thesis] in Danish. Licentiatafhandling i svinets fodring og pasning, Husdyrbrugsinstituttet, Den Kgl.- Veterinær og Landbohøjskole., København.pp. 113.

Jørgensen, E. (1985). Principper for produktionskontrol i soholdet. Licentiatafhandling i svinets fodring og pasning, Husdyrbrugsinstituttet, Den Kgl.- Veterinær og Landbohøjskole., København.pp. 113.

Jørgensen, E. (1984). Fraselektionen er generelt for kraftig. Tilfældige udsving påvirker en fuld produktion. Hyologisk tidsskrift Svinet 12, pp. 40-44.

Jørgensen E (1984). Kø-teori anvendt til beskrivelse af ad lib. fodring. dupl.

Jørgensen, E. (1984). Erfaring fra brugen af kunstig sædoverføring i sobesætninger under De rullende Afprøvninger. in Alt det Nyeste 1985, Landbrug, Havebrug, Husholdning. ( Jensen, B., Thomsen, S., Ullerup, B., and Wulff, J., Eds.) Det Kgl. danske Landhusholdningsselskab, København. 49-53.

Jørgensen, E. and Kjeldsen, N. J. (1983). Prediction of voluntary feed intake in piglets and using the predictions in evaluating the diets. Session IIB. in 34th Annual meeting EAAP, Madrid. pp. 9

Jørgensen E (1983). Prognoseudskrifter. Bilag til indlæg ved kursus på Tune Landboskole vedr. Anvendelse af EDB og elektronik ved kontrol og styring af svinebesætninger.dupl.

Jørgensen E (1983). Forsøg til fastlæggelse af normer for belægningsgrad i svinestalde. Oplæg til gruppearbejde ved kursus på Tune Landboskole i Planlægning og Statistisk analyse af forsøg med husdyr.dupl.

Jørgensen, E. (1983). Experiences with AI from field test's in Danish Sow Units, Session IIIB Artificial Insemination Review. in 34th Annual Meeting of The European Association of Animal Production. Madrid. pp 1-9.

Jørgensen, E. (1983). Bestemmelse af konfidensområde for en responsefunktions optimumspunkt, Institut for Matematik og Statistik. Den kgl. Veterinær- og Landbohøjskole., pp. 28.

Jørgensen, E. (1983). Udsætning af søer på grund af kuldstørrelse bestemt ved hjælp af en logistisk responsemodel. Praktisk-skriftlig opgave i Statistik, Institut for matematik og Statistik. Den kgl. Veterinær- og Landbohøjskole., pp. 21.

Pedersen, O. G., Jørgensen, E., Ingwersen, J. and Ruby, V. (1983). Adaption of piglets weaned at two weeks in triple deck nurseries compared intra herd to weaning at four weeks. Session V/VI. in 34th Annual Meeting of the EAAP, Madrid,. pp 9

Jørgensen, E. (1982). Resultater fra forsøg med produktion med LY-søer og orner af 4 racer. Produktion 9, pp. 22-23.

Jørgensen, E. (1982). Brugen af krydsningsgrise i slagtesvineholdet. Landbonyt 9, pp. 489-497.

Jørgensen, E., Ruby, V., Staun, H., Pedersen, O. G. and Udesen, F. (1982). Krydsningsproduktion med LY-søer og orner af 4 racer. Frugtbarhed, tilvækst og foderforbrug samt resultater fra bedømmelsescentralen. Statens Husdyrbrugsforsøg, meddelelse 428, pp. 1-4.

Jørgensen E (1982). Bestemmelse af udsætningsfrekvenser i soholdet og deres betydning i produktionen. Hovedopgave i statistik A3b.dupl.

Nielsen, H. E., Aherne, F. X., Hardin, R. T., Jørgensen, E. and Kjeldsen, N. (1982). Effect of various levels of dietary energy and lysine on piglets weaned at different ages studied by the response surface methodology. in Commission on Pig Production. 33rd Annual Meeting of the European Association for Animal Production.

Jørgensen, E. and Ruby, V. (1981). Simulation of different production strategies in sow units. in 32th Annual Meeting of the European Association for Animal Production. Zagreb, Yugoslavia. pp. 1-5.

Jørgensen, E. (1981). Opbygning af model til simulering af sobesætninger. Hovedopgave i Svinets fodring og pasning, Husdyrbrugsinstituttet, Den kgl. Veterinær- og Landbohøjskole., pp. 86.

Ruby, V. and Jørgensen, E. (1981). Staldindretning og staldsystemer. Chap 14 in Kompendium i Svinets fodring og pasning. ( Bresson, S., Staun, H., and Jensen, P., Eds.) Husdyrbrugsinstituttet. Den kgl. Veterinær- og Landbohøjskole., København. 9-23.

Lemmich, B. and Jørgensen, E. (1980). Produktionskontrol, opbygning og udnyttelse. Rapportstudiekreds i Statistik A3b, Den Kgl. Veterinær- og Landbohøjskole, Institut for Matematik og Statistik., pp. 102.

Ruby V and Jørgensen E (1980). Rapport over studietur til Harrogate i England. Computers in Animal Production.dupl.

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