{
  "eprintid": "8390",
  "rev_number": "1",
  "eprint_status": "archive",
  "userid": "4832",
  "dir": "disk0/00/00/83/90",
  "datestamp": "2006-10-20",
  "lastmod": "2009-08-20 14:32:22",
  "status_changed": "2009-08-20 14:32:22",
  "type": "conference_item",
  "metadata_visibility": "show",
  "item_issues_count": "0",
  "doclang": "en",
  "projects": [
    "uk",
    "uk-cor-2002",
    "se",
    "zother2"
  ],
  "confdates": "26-28 March 2002",
  "conference": "UK Organic Research 2002 Conference",
  "confloc": "Aberystwyth",
  "refereed": "never",
  "budget": "0",
  "publicfulltext": "TRUE",
  "presentationtype": "paper",
  "creators": [
    {
      "name": {
        "family": "Bystrom",
        "given": "Sara"
      },
      "id": ""
    },
    {
      "name": {
        "family": "Jonsson",
        "given": "Simon"
      },
      "id": ""
    },
    {
      "name": {
        "family": "Martinsson",
        "given": "Kjell"
      },
      "id": ""
    }
  ],
  "title": "Organic versus conventional dairy farming – studies from the Öjebyn Project",
  "ispublished": "pub",
  "subjects": [
    "2farming",
    "1dairy",
    "3feeding"
  ],
  "keywords": "Colloquium of Organic Researchers; COR; dairy, feed intake, milk production, feed efficiency, Ojebyn project, farming systems",
  "abstract": "This report was presented at the UK Organic Research 2002 Conference. A study (the Öjebyn Project) was conducted to determine differences between organic and conventional dairy farming systems. Comparisons of feed intake, milk production, live weight (LW), feed efficiency and animal health were conducted, based on records from 145 dairy cows (238 parities). A lower daily metabolisable energy (ME) intake, lower milk yield and a higher protein content were recorded in the organic herd during the first ten weeks of lactation. No differences were recorded between the systems in either average total DM intake or efficiency of feed conversion, calculated as MJ of feed/kg of energy-corrected milk (ECM). There were a trend to lower LW change and better health in the organic herd. Most differences between the systems were recorded during the early lactation period.",
  "date": "2002",
  "date_type": "published",
  "publication": "Proceedings of the UK Organic Research 2002 Conference",
  "publisher": "Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth",
  "editors": [
    {
      "name": {
        "family": "Powell",
        "given": "Jane"
      },
      "id": ""
    },
    {
      "name": {
        "family": "et al."
      },
      "id": ""
    }
  ],
  "referencetext": "Buxton D R (1996). Quality-related characteristics of forages as influenced by plant environment and agronomic factors. Animal Feed Science Technology 59, 37-49. Collard B L; Boettcher P J; Dekkers J C M; Petitclerc D; Schaeffer L R (2000). Relationships between energy balance and health traits of dairy cattle in early lactation. Journal of Dairy Science 83, 2683-2690. Ebbesvik M (1993). Melkeproduksjon i økologisk landbruk. Statens fagtjeneste for landbruket. FAGINFO 22, 1993. [in Norwegian]. Feed Tables for Ruminants (1995). (ed. Spörndly, R.). Report No. 235. Dept. of Animal Nutrition and Management. Swedish University of Agricultural Sciences, Uppsala, Sweden. [in Swedish]. Gruber L; Steinwender P; Guggenberger T; Häusler J; Schauer A (2001). Comparison of organic and conventional farming on a grassland farm. 2st communication: Feed intake, milk yield, health and fertility parameters. Bodenkultur 52, 55-70. Hardeng F (1998). Helsemessige forhold ved økologisk mjølkeproduksjon sammenlignet med konvensjonell drift. Husdyrforsøksmøtet 1998. Norges landbrukshøgskole 10-11 februar 1998. [in Norwegian]. KRAV standards (2000). KRAV organic standards for the organic market in Sweden, Box 1940, 751 49 Uppsala. Kristensen T; Kristensen E S (1998). Analysis and simulation modelling of the production in Danish organic and conventional dairy herds. Livestock Production Science 54, 55-65. Reksen O; Tverdal A; Ropstad E (1999). A comparative study of reproductive performance in organic and conventional dairy husbandry. Journal of Dairy Science 82, 2605-2610. SAS Institute Inc. (2000). SAS/STAT Software, Version 6 Edition. SAS Institute, Cary, NC, USA. Sundrum A (2001). Organic livestock farming – A critical review. Livestock Production Science 67, 207-215. Weller R F; Cooper A (1996). Health status of dairy herds converting from conventional to organic farming. The Veterinary Record 139, 141-142.",
  "full_text_status": "public",
  "pagerange": "179-184",
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      "security": "public",
      "main": "bystrom_organic_conventional_dairy_ojebyn.pdf",
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