@article{oai:miyazaki-u.repo.nii.ac.jp:00000535,
 author = {曹, 旭敏 and 長谷川, 信美 and Hasegawa, Nobumi and 宋, 仁徳 and Song, Rende and 李, 国梅 and Li, Guomei and 孫, 軍 and Cao, Xumin and Sun, Jun},
 issue = {1},
 journal = {日本暖地畜産学会報, Journal of Warm Regional Society of Animal Science, Japan},
 month = {Mar},
 note = {本研究の目的は,生態系保全型放牧確立に向けた基礎的データの提供である.中国青海省玉樹蔵族自治州の暖季・寒季放牧地（それぞれWSGPおよびCSGP）でヤク3頭の行動観察を行った.採食時間は,WSGPでは2009年7月（W09）に590.2分/日,2010年8月（W10）に511.8分/日,CSGPでは2008年4月（C08）に468.0 分/日で, W09が最も長かった（P<0.05）.反芻時間はそれぞれ373.5,419.8,195.3分/日で,WSGPがCSGP よりも長かった（P<0.05）.反芻行動での咀嚼数/食塊は観察期による有意差を示し（P<0.001）,咀嚼速度はCSGPがWSGPよりも速かった（P<0.05）.採食行動ではWSGPがCSGPよりもバイト速度は速く（P<0.001）,パッチ間歩数は多かった（P<0.001）.採食時間/フィーディングステーション（FS）はC08がW09よりも長く（P<0.05）,バイト/FSはC08がW10よりも少なかった（P<0.05）.野草放牧地の植生と現存量の季節による違いがヤクの行動に影響していると考えられ,新たな放牧方式の検討が必要と考えられた., This study was aimed to obtain fundamental data to establish the grazing system for sustainable use and ecological preservation of rangeland in Qinghai-Tibetan Plateau through investigation of yak behaviour in rotational-grazing paddocks between winter-spring （cold） and summer-autumn （warm） seasons. Behavioural observations of 3 grazing yaks were conducted in warm season paddock （WSGP） and cold season paddock （CSGP） in Yushu Tibetan-Autonomous State, Qinghai Province, China. Grazing time of yak was 590.2 min/day in July 2009 （W09） and 511.8 min/day in August 2010 （W10） in WSGP, and 468.0 min/day in April 2008 （C08） in CSGP. It was significantly shorter in CSGP than in WSGP （P<0.001）. The rumination time was significantly longer in WSGP （W09: 373.5 min/day and W10: 419.8 min/day） than in CSGP （C08:195.3 min/day） （P<0.001）. The chewing number per bolus in rumination was significantly different among the observation periods （p<0.001） and chewing rate was greatest in C08 among the three （P<0.001）. The bite number per patch in foraging behaviour was not significantly different among the observation periods （p>0.05）. Bite rate in a patch and number of steps between patches were significantly greater in WSGP （W09 and W10） than that in CSGP （C8） （p<0.001）. Number of feeding station （FS） per patch was greater in C08 than in W09 and foraging time per FS was greater in C08 than in W09, but bite number per FS was smaller in C08 than in W10 （p<0.05）. It was considered that the differences of vegetation and biomass influenced on grazing and rumination in yak behaviour and that new grazing system should be investigated., 利用は著作権の範囲内に限られます。},
 pages = {9--15},
 title = {チベット高原南部高山野草地における暖季と寒季放牧地でのヤクの行動},
 volume = {55},
 year = {2012},
 yomi = {ハセガワ, ノブミ}
}