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Affiliation |
Faculty of Agriculture Department of Animal and Grassland Sciences |
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Title |
Associate Professor |
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External Link |
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ANZAI Hiroki
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Degree 【 display / non-display 】
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博士（農学） ( 2016.3 京都大学 )
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修士（農学） ( 2013.3 京都大学 )
Research Areas 【 display / non-display 】
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Life Science / Animal production science
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Environmental Science/Agriculture Science / Agricultural environmental engineering and agricultural information engineering
Education 【 display / non-display 】
Campus Career 【 display / non-display 】
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University of Miyazaki Faculty of Agriculture Department of Animal and Grassland Sciences Associate Professor
2024.03 - Now
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University of Miyazaki Faculty of Agriculture Department of Animal and Grassland Sciences Assistant Professor
2017.07 - 2024.02
Professional Memberships 【 display / non-display 】
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全国放牧畜産ネットワーク協議会
2020.4
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畜産システム研究会
2019.4
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日本畜産学会
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日本草地学会
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システム農学会
Papers 【 display / non-display 】
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Effects of continuous drone herding on behavioral response and spatial distribution of grazing cattle Reviewed International journal
Anzai H., Kumaishi M.
Applied Animal Behaviour Science 268 2023.11
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Applied Animal Behaviour Science
Robotic herding is expected to become a new technology for the management of grazing animals. We investigated the behavioral responses of cows to drone herding on consecutive days and the potential of this technology to manipulate grazing distribution in a pasture. A herd of ∼30 cows was stocked in a 1.1-ha pasture for 5 consecutive days each month from May to October 2022. The cows were herded using a drone for 10 days during the grazing period in August (days 1–5) and September (days 6–10). The pasture was divided into nine plots, with two and three plots assigned as the ‘herding area’ in August and September, respectively. When the cows were grazing in the herding area, the operator maneuvered the drone to move the animals out of the area. The drone first approached at an altitude of 10 m; if the cows did not move away, the altitude was gradually lowered to 3 m. The behavioral responses to the drone, success or failure of herding (whether the cows left the area or not), and drone altitude were classified based on videos recorded during herding. The behavior and location of the cows in the pasture were observed during this period. The utilization rates of the plots (percentage of grazing time) were calculated to evaluate the effects of herding and the number of herding days. The cows responded in 59% and 46% of the cases on days 1 and 2, respectively. Startle behavior was recorded in 23% of the responses on day 1. Herding was successful in 51–75% of the cases on days 1–3. However, these percentages decreased thereafter. The utilization rate of the herding area on day 1 was approximately half that on days without herding. It increased from day 2, and almost no effect on grazing distribution was observed on or after day 3. These findings suggest that the cows exhibited little fear of drones after 1-day herding, and responses to the drones decreased as the animals subsequently became habituated to frequently repeated stimuli. Even after a 24-day interval, responsiveness to drone herding barely recovered and then declined. Therefore, drone herding was hardly effective in manipulating grazing distribution. Further investigation of stimulation that persistently elicits desirable responses is needed for future applications in technologies for the autonomous control of animal movement.
DOI： 10.1016/j.applanim.2023.106089
Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85174696725&origin=inward
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Hiroki Anzai, Hina Sakurai
Applied Animal Behaviour Science 256 105751 2022.10
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV
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Let’s Classify the Distribution Pattern of Pasture Botanical Composition to Understand the Spatial Distribution of Grazing Cattle! Reviewed
Anzai Hiroki
Japanese Journal of Grassland Science 67 ( 4 ) 204 - 208 2022.4
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Grassland Science
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Shift in management strategy of yak herding in the south of Mustang District, Nepal, Himalaya Reviewed International coauthorship
Anzai H, Shah MK, Kumagai H.
Proceedings of the XXIV International Grassland Congress / XI International Rangeland Congress 2021.10
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (international conference proceedings)
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Interindividual differences and their consistency in grazing cattle behavior across seasons Reviewed
Anzai H, Shitajikkoku M, Hani K, Yamada N, Hirata M.
Proceedings of the XXIV International Grassland Congress / XI International Rangeland Congress 2021.10
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (international conference proceedings)
Books 【 display / non-display 】
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石井 康之，大野 和朗 他（ Role： Joint author）
宮崎大学・令和２年度「飼料生産におけるツマジロクサヨトウ対策事業」事務局 2021.4
Language：Japanese
MISC 【 display / non-display 】
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乳牛の暑熱対策に関する研究事例紹介 Invited
安在弘樹
臨床獣医 42 ( 5 ) 20 - 23 2024.5
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)
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九州における放牧酪農の現状と課題
宮嵜宥佳・安在弘樹
放牧通信 ( 17 ) 2021.7
Authorship：Last author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other)
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ネパールにおけるヤクの飼養 Invited
熊谷元，安在弘樹
農業 ( 1589 ) 60 - 64 2014.9
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Publisher：大日本農会
Presentations 【 display / non-display 】
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Effect of successive drone herding on behaviour and spatial distribution of grazing cattle International conference
H. Anzai and M. Kumaishi
The EAAP 74th Annual Congress (Lyon, France) 2023.8.29
Event date： 2023.8.28 - 2023.9.1
Language：English Presentation type：Poster presentation
Venue：Lyon, France
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ドローンによる牛追いが放牧牛の行動と空間分布に及ぼす影響
安在弘樹, 熊石万紘
2023年度日本草地学会札幌大会 2023.3.28
Event date： 2023.3.26 - 2023.3.28
Language：Japanese Presentation type：Oral presentation (general)
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放牧家畜の空間分布を遠隔制御する新たな技術の開発に関する予備研究：無人車両によるherdingに対するウシの行動反応とその制御性能
安在弘樹, 櫻井ひな
2022年度日本草地学会岩手大会 2022.3 日本草地学会
Event date： 2022.3
Language：Japanese Presentation type：Oral presentation (general)
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Interindividual differences and their consistency in grazing cattle behavior across seasons International conference
Anzai H, Shitajikkoku M, Hani K, Yamada N, Hirata M.
The Joint International Grassland and International Rangeland Congress 2021 2021.10
Event date： 2021.10.23 - 2021.10.29
Language：English Presentation type：Poster presentation
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Shift in management strategy of yak herding in the south of Mustang District, Nepal, Himalaya International coauthorship International conference
Anzai H, Shah MK, Kumagai H.
The Joint International Grassland and International Rangeland Congress 2021 2021.10
Event date： 2021.10.23 - 2021.10.29
Language：English Presentation type：Oral presentation (general)
Awards 【 display / non-display 】
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日本畜産学会奨励賞
2018.3 日本畜産学会 フィールド調査を軸としたアジアにおける家畜生産システムに関する研究
安在弘樹
Award type：Honored in official journal of a scientific society, scientific journal Country：Japan
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第49回国際応用動物行動学会大会 Student Poster Competition, The Best Presentation Award
2015.9 国際応用動物行動学会 Selectivity for rangeland characteristics by grazing yaks in Western Nepal, Himalaya
Anzai H
Award type：Award from international society, conference, symposium, etc. Country：Japan
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第16回AAAP大会プレゼンテーションアワード
2014.10 日本畜産学会 Use of GPS and GIS for estimating grazing pattern of yak in western Nepal, Himalaya
安在弘樹
Award type：Award from international society, conference, symposium, etc. Country：Japan
Grant-in-Aid for Scientific Research 【 display / non-display 】
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放牧草地の採食分布を制御するロボットherding技術の開発に向けたフィールド研究
Grant number：23K14047 2023.04 - 2026.03
独立行政法人日本学術振興会 科学研究費基金 若手研究
Authorship：Principal investigator
Available Technology 【 display / non-display 】
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Related fields where technical consultation is available：動物の行動モニタリング、ドローン画像解析
Message：放牧に関することであれば、なんでもご連絡ください。
Committee Memberships 【 display / non-display 】
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日本草地学会 和文誌編集委員
2023.4
Committee type：学協会
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日本草地学会 英文誌編集幹事
2023.4
Committee type：学協会
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システム農学 企画委員
2021.6
Committee type：学協会
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日本草地学会 和文誌A編集幹事
2021.4 - 2023.3
Committee type：学協会
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日本草地学会 学会賞推薦委員
2021.4 - 2022.3
Committee type：学協会
Social Activities 【 display / non-display 】
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放牧牛の行動に関する研究紹介 ―暑熱対策と空間分布制御について―
Role(s)： Appearance, Panelist
コープ九州 コープ九州グラスファーミングオンラインミーティング 2022.7.11
Media Coverage 【 display / non-display 】
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A remote-controlled car with a flag on a pole can herd cattle Newspaper, magazine
2022.10.13
Author：Other