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NutrientsStandards
08.06.2005
NutrientsStandardsforpigsinDenmark
TheDanishfeedevaluationsystem
In2002,anewfeedevaluationsystemwasintroducedinDenmark.Thissystemisbasedonthephysiologicalenergyvalueofthe
nutrientsandontheirstandardiseddigestibility,andtwonewfeedunitswereintroducedreplacingtheoldfeedunit:FUgp(feed
unitsforpigsincludinglactatingsows)andFUgs(feedunitsforgestatingsows).
Thecontentoffeedunitsintheindividualingredientswascalculatedonthebasisofthefollowingfactors:
•
Digestiblecrudeproteininileum
•
Digestiblecrudefatinfaeces
•
Easilydigestiblecarbohydrate
•
Carbohydratenoteasilydigested(fermentablecarbohydrates)
•
Extracarbohydrate(includedonlyinthecalculationofFUgsforgestatingsowsandtakesintoaccountthefactthat
gestatingsowsdigest18%ofwhatisindigestibleforfinishers)
•
Energylossinconnectionwithdigestion(2.8KJpergindigestibledrymatteratileum)
Theproteinevaluationsystemisbasedonthestandardisedilealdigestibilityforeachaminoacid.
Atypicalcompletediethasthefollowingenergycontentperkgdiet:
FUgp/FUgsMJMEMJNEMJphysiologicalenergy
Lactationdiets1.06FUgp13.39.67.9
Gestationdiets0.99FUgs12.68.87.4
Weanerdiets,6-9kg1.18FUgp14.410.58.7
Weanerdiets,9-301.17FUgp14.110.48.6
kg
Finisherdiets,1.07FUgp13.4
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