00776nas a2200193   4500000000100000000000100001008004100002260007000043100001300113700001500126700001300141700002500154700001200179245010600191300001000297490000800307520025300315022001400568       2008                            d  c03/2008bSchlütersche Verlagsgesellschaft mbH & Co. KGaHannover1 aB Scholz1 aS Rönchen1 aH Hamann1 aM Hewicker-Trautwein1 aO Distl00aKeel bone condition in laying hens: a histological evaluation of macro-scopically assessed keel bones  a89-940 v1213 aThe objective of the present study was to conduct a corresponding histologi-cal analysis of 162 macroscopically assessed keel bones (1: severe, 2: moderate, 3: slight, 4: no deformity). Four layer lines were used and hens were kept in furnished ...  a0005-9366