Léguillette, RenaudBarkema, HermanWasko, Andrea Jayne2017-12-182017-12-182012http://hdl.handle.net/1880/106005Bibliography: p. 127-161A couple pages are in colour.Includes copy of ethics approval and copyright permissions. Original copies with original Partial Copyright Licence.Non-infectious equine respiratory diseases consist of recurrent airway obstruction (RAO) and inflammatory airway disease (IAD). Recurrent airway obstruction has similarities with human asthma, whereas horses with IAD have a milder airway inflammation and do not exhibit respiratory clinical signs at rest. This thesis presents a review on RAO and IAD, followed by a manuscript on the evaluation of a risk-screening questionnaire (RSQ) to detect equine lung inflammation measured by a bronchoalveolar lavage (BAL) in a large field study. The RSQ had a high sensitivity to detect severe lower airway inflammation and would be a good screening tool in practice. Furthermore, there was a high prevalence of moderate airway inflammation in this population, but the RSQ did not differentiate between moderate airway inflammation and normal horses. Finally feeding round hay bales was a risk factor for severe airway inflammation.xi, 161 leaves : ill. ; 30 cm.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.master thesis10.11575/PRISM/5004