?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Effect+of+artificial+structuring+on+the+use+of+laying+hen+runs+in+a+free-range+system&rft.creator=Zeltner%2C+Esther&rft.creator=Hirt%2C+Helen&rft.subject=+Poultry&rft.subject=+Health+and+welfare&rft.description=1.+This+study+examined+whether+a+free+range+with+roofed+boxes+with+sand+to+structure+the+hen+run+had+an+effect+on+the+numbers+of+hens+going+outside+and+on+the+distribution+of+the+hens+in+the+hen+run.%0D%0A2.+On+a+poultry+farm+with+8+flocks+of+laying+hens+of+roughly+500+birds+per+flock%2C+each+flock+was+observed+with+and+without+roofed+boxes+with+sand.%0D%0A3.+There+was+no+difference+in+the+number+of+hens+on+free+range+with+and+without+roofed+boxes+but+there+was+an+influence+on+the+distribution.%0D%0A4.+In+free+range+with+structures+there+was+a+higher+percentage+of+the+hens+outside+in+the+furthest+quarter+where+the+structures+were+located.%0D%0A5.+We+conclude+that+structures+in+the+free+range+have+an+effect+on+the+distribution+of+laying+hens.&rft.date=2003&rft.type=Journal+paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Forgprints.org%2F2784%2F1%2Fzeltner-2003-british-poultry-science.pdf&rft.identifier=Zeltner%2C+Esther+and+Hirt%2C+Helen+(2003)+Effect+of+artificial+structuring+on+the+use+of+laying+hen+runs+in+a+free-range+system.+British+Poultry+Science%2C+44+(4)%2C+pp.+533-537.&rft.relation=http%3A%2F%2Forgprints.org%2F2784%2F