Each hen was placed in a motion limiting restraint, scanned using computed tomography (CT), fitted in vests containing tri-axial accelerometers, and placed back in their cages for 21 d. After 21 d, the hens were rescanned and returned to their cages. This process was repeated after 133 d...
Keel bone differences in laying hens housed in enriched colony cages.doi:10.3382/ps/pey421Nicholas J. ChargoCara I. RobisonHope O. AkaezeSydney L. BakerMichael J. ToscanoMaja M. MakagonDarrin M. KarcherOxford University Press
This study lends support to the growing body of evidence indicating that interactions with perch contribute to the keel bone damage sustained by laying hens housed in enriched colony cage systems, however, the relationship between acceleration events and occurrence of keel bone damage has yet to be...
Keel impacts and associated behaviors in laying hensdoi:10.1016/j.applanim.2019.104886Sydney L. BakerCara I. RobisonDarrin M. KarcherMichael J. ToscanoMaja M. MakagonElsevier
Keel bone damage assessment: consistency in enriched colony laying hensdoi:10.3382/ps/pey373Nicholas J ChargoCara I RobisonSydney L BakerMichael Jeffrey ToscanoMaja M MakagonDarrin M KarcherOxford University Press
backyard chickens are potentially exposed to different types of contaminants, such as heavy metals, pesticides, and other chemicals, due to their free access to the natural environment. This study focuses on the presence of four toxic elements in eggs from free-range hens raised in a large park...