?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Organic+Poultry+Nutrition+and+Rations&rft.creator=Dinnage%2C+Gerard&rft.subject=+Poultry&rft.subject=+Feeding+and+growth&rft.description=The+scope+of+the+review+is+to+consider+recent+sources+of+information+relating+to+the+feeding+of+organic+laying+hens%2C+broilers+and+turkeys.+In+particular+it+reviews+all+the+research+commissioned+by+Defra+together+with+other+UK+and+European+work+and+collates+the+results+of+that+work+in+the+light+of+commercial+experience%2C+providing+advisers+with+a+summary+of+the+key+recommendations.+The+study+will+in+particular+focus+on+determining+the+suitability+and+availability+of+organic+ingredients+and+the+ways+in+which+farmers+can+make+the+best+use+of+these.+Best+practice+i.e.+the+use+of+100%25+organic+ingredients+should+be+at+the+forefront+of+all+feed+formulation.+The+main+problem+faced+by+producers+is+the+sourcing+of+organic+ingredients+that+provide+adequate+levels+of+essential+amino+acids+(AA)+such+as+methionine+and+lysine+without+introducing+higher+levels+of+anti-nutritional+factors+(ANF)+into+the+diet.+For+these+reasons+many+diets+are+formulated+using+the+non-organic+allowance+i.e.+15%25+annual+dry+mater+intake+can+be+approved+nonorganic+ingredients%2C+permitted+until+31st+December+2007.+After+that+date+the+level+falls+to+10%25+then+5%25+two+years+later+and+finally+100%25+organic+from+1st+January+2012.+Genotype%2C+the+birds%C3%A2%C2%80%C2%99+ability+to+utilise+naturally+occurring+ingredients+and+factors+governing+the+use+of+range+will+be+reviewed.+The+review+will+indicate+the+ways+in+which+farmers+can+optimise+performance+taking+into+account+the+types+of+bird+available%2C+the+feed+that+can+be+provided+on+the+farm+and+the+management+of+the+range.+There+will+be+some+consideration+of+the+cost+of+feed+and+the+ways+in+which+this+may+change.&rft.date=2008&rft.type=Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Forgprints.org%2F13562%2F1%2FRes_Review_2a_briggs.pdf&rft.identifier=Dinnage%2C+Gerard+(2008)+Organic+Poultry+Nutrition+and+Rations.&rft.relation=http%3A%2F%2Forgprints.org%2F13562%2F