?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Possibilities+and+limitations+of+protein+supply+in+organic+poultry+and+pig+production.+Summary+of+Results+from+EEC+2092%2F91+(Organic)+Revision&rft.creator=Sundrum%2C+Albert&rft.subject=+Regulation&rft.subject=+Poultry&rft.subject=+Pigs&rft.subject=+Feeding+and+growth&rft.description=One+of+the+main+objectives+of+organic+agriculture+is+to+establish+a+largely+closed+nutrient+cycle+within+the+farm+system.+To+limit+the+input+of+nutrients+in+quantity+and+quality+is+relevant+both+to+plant+and+livestock+production.+If+nutrient+input+is+unavoidable+to+ensure+an+adequate+supply+for+the+farm+animals%2C+this+should+preferably+originate+from+organic+systems%2C+while+the+input+of+conventional+feed+stuffs+should+be+restricted+to+a+minimum%2C+and+synthetic+products+are+banned.+Dealing+with+limited+availability+of+feed+and+nutrient+resources+is+therefore+a+main+feature+of+organic+livestock+production.+%0D%0AThe+organic+approach+stands+in+contrast+to+the+situation+in+conventional+livestock+production+where+the+use+of+feeds+and+nutrients+is+restricted+primarily+by+the+purchase+price.+While+conventional+production+has+to+face+various+local%2C+regional+and+global+problems+caused+by+excess+import+and+use+of+concentrated+feeds%2C+problems+of+organic+livestock+production+are+primarily+related+to+a+lack+of+nutrients+at+the+farm+or+herd+level.+Due+to+these+system-related+conditions%2C+there+is+concern+about+been+able+to+formulate+adequate+rations+for+the+nutritional-physiological+needs+of+livestock%2C+especially+in+relation+to+essential+amino+acids+in+the+feeding+of+poultry+and+pigs.+Nutritional+imbalances+encountered+in+practice+might+lead+to+deteriorating+animal+health+and+welfare.+%0D%0AOn+the+other+hand%2C+there+is+also+concern+that+allowing+conventional+feedstuffs+to+be+fed+in+organic+livestock+production.+This+could+result+in+intensification+of+production%2C+causing+the+same+problems+in+organic+as+in+intensive+livestock+production%2C+such+as+animal+health+problems%2C+risk+of+residues+and+GM+contamination.+Thus%2C+extending+the+derogation+for+conventional+feed+in+the+EU+regulation+may+have+a+damaging+effect+on+consumer+confidence+in+organic+animal+products.+%0D%0A%0D%0AWork+within+an+the+EU+funded+research+project+%C3%A2%C2%80%C2%9COrganic+Revision%C3%A2%C2%80%C2%9D+(Research+to+support+the+revision+of+the+EU+Regulation+on+Organic+Agriculture)+has+the+aim+to+provide+knowledge+on+how+to+achieve+100%25+organic+feed+rations+for+livestock+and+simultaneously+avoid+negative+effects+on+the+farm+animals.+The+first+step+in+the+project+is+to+obtain+an+overview+of+the+many+different+and+system+related+aspects+of+the+protein+supply+in+organic+poultry+and+pig+production.+The+nutritional-physiological+effects+of+a+variation+in+protein+supply+with+respect+to+growth+performance+and+protein+accretion+in+broilers%2C+turkeys%2C+laying+hens+and+pigs+are+examined+by+literature+review.+Furthermore%2C+the+potential+effects+of+the+supply+with+amino+acids+on+product+quality+and+animal+health+and+welfare+are+addressed.+Many+different+aspects+are+taken+into+account+to+discuss+the+question+of+whether+extending+the+derogation+concerning+the+use+of+non-organic+feedstuffs+should+be+considered+with+respect+to+the+objectives+and+framework+conditions+of+organic+livestock+production.%0D%0A&rft.date=2005-05&rft.type=Journal+paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Forgprints.org%2F10981%2F1%2Fsundrum_elmfarmbulletin.pdf&rft.identifier=Sundrum%2C+Albert+(2005)+Possibilities+and+limitations+of+protein+supply+in+organic+poultry+and+pig+production.+Summary+of+Results+from+EEC+2092%2F91+(Organic)+Revision.+Elm+Farm+Research+Centre+Bulletin+(78)%2C+pp.+6-9.&rft.relation=http%3A%2F%2Forgprints.org%2F10981%2F