?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Effect+of+breed+suitability%2C+system+design+and+management+on+welfare+%26+performance+in+traditional+%26+organic+poultrymeat+(OF0153)&rft.creator=Gordon%2C+Mrs+Sue&rft.subject=+Poultry&rft.subject=+Technology+transfer&rft.subject=+Breeding+and+genetics&rft.description=Background%0D%0AOver+the+past+fifty+years+broiler+production+accounted+for+almost+all+of+the+meat+chickens+produced+in+the+UK.++As+a+result%2C+only+broiler+hybrids+were+available+for+use+by+UK+producers%2C+and+these+were+not+thought+to+be+suited+for+use+in+some+extensive+production+systems.++This+meant+that+when+consumer+demand+for+extensively+produced+chicken+meat+increased+in+the+late+1990s+producers+were+unable+to+quickly+identify+and+source+the+most+suitable+hybrids+for+UK+conditions.++Furthermore%2C+systems+of+extensive+production+were+still+being+developed%2C+and+little+was+known+about+design+and+management+factors+affecting+range+usage.++%0D%0AProject+OF0153+aimed+to+characterise+breed+suitability+for+extensive+production+(free-range%2C+traditional+free-range+and+organic+production)+and+to+assess+the+contribution+of+management+and+system+design+on+bird+performance%2C+range+usage+and+animal+welfare+parametres.+%0D%0AObjectives%0D%0A1.%09To+characterise+performance%2C+behaviour+and+meat+yields+in+several+hybrids+by+permitting+the+genotypes+to+express+themselves+under+non-limiting+conditions%2C+and+when+fed+either+presumed+non-limiting+rations+or+Label+Rouge+rations.%0D%0A2.%09To+establish+the+interactive+effects+of+breed+and+post+brooding+temperature+on+performance%2C+meat+yields+and+the+insulative+value+of+feather+cover.%0D%0A3.%09To+examine+the+effect+of+range+design+on+performance%2C+bird+well-being+and+range+usage+when+grown+in+winter+months.+%0D%0A4.%09To+examine+the+effects+of+brooding+facility+and+range+design+on+performance%2C+bird+well-being+and+range+usage+when+grown+in+summer+months.+%0D%0A5.%09To+characterise+bird+movement+within+a+standard+controlled+environment+house+and+a+free-range+house.%0D%0A6.%09To+examine+the+interactive+effects+of+brooding+facility+and+feed+and+water+provision+on+mortality+and+performance+of+free-range+ISA+657+birds.%0D%0A7.%09To+examine+the+effects+of+early+nutrient+intake+on+mortality+and+performance+of+ISA+657+chicks+brooded+in+free-range+facilities.%0D%0A%0D%0AThe+work+was+done+in+three+phases.++%0D%0A%0D%0APhase+1+characterised%2C+across+a+wide+range+of+breeds%2C+suitability+for+use+in+extensive+production+systems+and+concluded+that+it+is+possible+to+choose+breeds+suitable+for+extensive+production+systems.%0D%0A%0D%0APhase+2+examined+the+effects+of+system+design+and+management+on+range+usage+and+bird+performance.+Early+access+to+pasture+increased+range+usage%2C+and+natural+shelter+in+the+form+of+a+conifer+wig-wam+was+attractive+to+the+birds+and+well+used.++Brooding+in+the+low-tech+free-range+facilities+was+extremely+labour+intensive+and+sometimes+resulted+in+higher+mortality+than+when+brooding+was+done+in+a+controlled+environment+facility.++Brooding+mortality+in+the+free-range+facilities+was+due+to+difficulties+in+achieving+an+appropriate+thermal+environment+at+all+times+of+the+day+and+night.++%0D%0A%0D%0APhase+3+comprised+two+studies.++Study+6+examined+the+effects+of+brooder+facility%2C+and+feed+and+water+provision+during+early+life+on+mortality+and+performance+to+81+days+of+age.++In+a+factorial+design%2C+chicks+were+brooded+in+the+climatic+house+or+free-range+facilities%2C+and+allowed+standard+or+generous+feed+and+water+provision.++Study+7+examined+the+effects+of+early+nutrient+intake+on+mortality+and+performance+and+in+this+study+chicks+were+brooded+only+in+the+free-range+facilities.+++%0D%0A%0D%0AImplications+of+findings%2C+future+work+and+policy+relevance%0D%0AThe+research+characterised+the+relative+merits+of+varying+breed%2C+management+and+rearing+options%2C+for+extrapolation+to+a+range+of+extensive+poultry+production+systems.+Producers+may+choose+from+the+wide+range+of+hybrids+available%2C+those+that+best+suit+their+production+system%2C+in+terms+of+live+weight+at+slaughter%2C+meat+conformation+and+behaviour.%0D%0AThere+is+a+more+substantial+and+detailed+executive+summary+at+the+start+of+the+attached+main+report.&rft.date=2002&rft.type=Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Forgprints.org%2F8104%2F1%2FOF0153_2552_FRP.pdf&rft.identifier=Gordon%2C+Mrs+Sue+(2002)+Effect+of+breed+suitability%2C+system+design+and+management+on+welfare+%26+performance+in+traditional+%26+organic+poultrymeat+(OF0153).&rft.relation=http%3A%2F%2Forgprints.org%2F8104%2F