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Improving aviary designs by observing laying hen locomotor development and determining navigational preferences

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dc.contributor.advisor Harlander, Alexandra Kozak, Madison 2016-05-11T20:00:45Z 2016-05-11T20:00:45Z 2016-04 2016-04-18 2016-05-11
dc.description.abstract This thesis focused on the development of locomotor, perching, and physical activity patterns of four strains of laying hens in a complex three-dimensional system. Video observations of chicks (1-9 weeks of age) showed that chicks performed more locomotor events on the ground than on elevated surfaces and performed more locomotive and perching events on leveled surfaces than inclined surfaces (ramps/ladders). Elevated surface use began at 8 days of age. Accelerometers showed that birds (10-37 weeks of age) allocated 70%, 22%, and 8% of their time towards moderate-, low-, and high-intensity physical activities, respectively. Pullets performed the greatest amount of high-intensity activity. Our Random Forest prediction accuracy for physical activities was 98. To provide proper locomotor development for layer-hen chicks, I recommend elevated surfaces connected via surfaces with moderate incline angles. Overall these finding provide insight that developing chicks preferentially use lower elevations and moderate activity when navigating a complex aviary. en_US
dc.description.sponsorship Swiss Federal Food Safety and Veterinary Office (project number 2.13.09, Bern, Switzerland) and the AgriInnovation program under the Growing Forward 2 policy framework, Canada. en_US
dc.language.iso en en_US
dc.rights Attribution-NonCommercial-NoDerivs 2.5 Canada *
dc.rights.uri *
dc.subject Gallus Gallus domesticus en_US
dc.subject Physical Activity en_US
dc.subject Locomotion en_US
dc.subject Development en_US
dc.subject Aviary en_US
dc.subject Accelerometer en_US
dc.subject Laying Hens en_US
dc.subject Chicks en_US
dc.subject Incline en_US
dc.title Improving aviary designs by observing laying hen locomotor development and determining navigational preferences en_US
dc.type Thesis en_US
dc.type Article en_US Animal and Poultry Science en_US Master of Science en_US Department of Animal Biosciences en_US
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Attribution-NonCommercial-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada