This thesis is an investigation of the characteristics and behaviour of loads of cattle that are unloaded for feed, water and rest at a rest station in Thunder Bay, Ontario. Truck drivers were surveyed as they arrived at the rest station and the cattle were observed as they were unloaded and reloaded to score animal handling (n=129). Behavioural observations were conducted on an additional 53 loads (87 pens) using counts of the number of animals lying, feeding and drinking. A majority of the loads (60.94%) were feeder calves (300-550kg). On average drivers were in transit for 28.2±5.0 hours before stopping and rested for 11.2±2.8 hours. These values are within the maximum and minimum allowed in the current Canadian regulations. Behaviour was not found to be associated with time in transit, but was instead found to be strongly associated with whether the entire truckload was grouped in a single pen. / Ontario Ministry of Agriculture and Food

京都大学 / 0048 / 新制・課程博士 / 博士(農学) / 甲第21806号 / 農博第2319号 / 新制||農||1065(附属図書館) / 学位論文||H31||N5178(農学部図書室) / 京都大学大学院農学研究科応用生物科学専攻 / (主査)教授 松井 徹, 教授 久米 新一, 教授 廣岡 博之 / 学位規則第4条第1項該当 / Doctor of Agricultural Science / Kyoto University / DGAM