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Affiliation |
Faculty of Agriculture Region of Animal and Plant Biosciences |
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Title |
Associate Professor |
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External Link |
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Related SDGs |
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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 Interests 【 display / non-display 】
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放牧、ウシ、動物行動学、Animal-Robot Interaction(ARI)、アニマルウェルフェア、スマート畜産、ドローン、リモートセンシング、獣害対策、イノシシ、分離不安、ネコ、行動アルゴリズム
Research Areas 【 display / non-display 】
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Environmental Science/Agriculture Science / Agricultural environmental engineering and agricultural information engineering
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Life Science / Animal production science
Education 【 display / non-display 】
Campus Career 【 display / non-display 】
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University of Miyazaki Faculty of Agriculture Region of Animal and Plant Biosciences Associate Professor
2025.04 - Now
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University of Miyazaki Faculty of Agriculture Department of Animal and Grassland Sciences Associate Professor
2024.03 - 2025.03
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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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動物の行動と管理学会
2025
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全国放牧畜産ネットワーク協議会
2020
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畜産システム研究会
2019
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日本畜産学会
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日本草地学会
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
DOI： 10.1016/j.applanim.2022.105751
Other Link： https://miyazaki-u.repo.nii.ac.jp/records/2000352
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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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研究室ガイド Invited
安在弘樹
臨床獣医 43 ( 8 ) 2025.7
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)
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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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農畜産業での四足ロボットの活用―動物の移動制御技術の開発 Invited
安在弘樹
Robot Innovation Week 2025 Unitree Developer Conference
Event date： 2025.12.16 - 2025.12.18
Presentation type：Oral presentation (invited, special)
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四足歩行ロボットを用いた追い払いによるイノシシ等害獣の出没状況の変化
安在弘樹・河野唯
動物の行動と管理学会 2025年度大会
Event date： 2025.9.17 - 2025.9.18
Language：Japanese Presentation type：Oral presentation (general)
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留守番を模した状況における動物型ロボットの提示がイエネコの行動に及ぼす影響
田頭美月・安在弘樹・勝俣沙智
動物の行動と管理学会 2025年度大会
Event date： 2025.9.17 - 2025.9.18
Language：Japanese Presentation type：Oral presentation (general)
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ドローンと四足歩行ロボットによる牛追いに対する放牧牛の行動反応の違い
岩谷綺玲佳・田村佳音・宮城帆乃佳・宮本咲耶・安在弘樹
日本草地学会宮崎大会 2025.3.19
Event date： 2025.3.17 - 2025.3.20
Language：Japanese Presentation type：Poster presentation
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放牧家畜の空間分布を制御するロボット牧畜技術の開発に向けた研究事例の紹介 Invited
安在弘樹
日本草地学会宮崎大会「若手の会小集会：南九州における自給飼料生産および スマート畜産技術について」 2025.3.19
Event date： 2025.3.17 - 2025.3.20
Language：Japanese Presentation type：Symposium, workshop panel (nominated)
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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家畜の情動的応答評価に資する新規生体情報計測手法の開発
Grant number：24K09161 2024.04 - 2027.03
独立行政法人日本学術振興会 科学研究費基金 基盤研究(C)
Authorship：Coinvestigator(s)
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東アフリカの持続的社会実現に向けた竹産業よる自律的農村構築のための実践的地域研究
Grant number：23KK0021 2023.09 - 2029.03
独立行政法人日本学術振興会 科学研究費基金 国際共同研究加速基金(海外連携研究)
Authorship：Coinvestigator(s)
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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 - 2027.03
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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スマート放牧技術とウェルフェア評価
慣れを制御する獣害対策
ペットの分離不安を緩和するインタラクション設計Related fields where technical consultation is available：・動物の行動モニタリングとデータ解析（GPS、センサ、ドローン等）
・動物行動学に基づくロボットの挙動アルゴリズム設計
・アニマルウェルフェア（動物福祉）の客観的評価Message：動物の心を動かす知能を備えたデバイスやサービスの開発に関わりたいと考えています。ターゲット動物や利用シーンに合わせた柔軟な共同開発が可能です。動物行動学のエビデンスを付加価値として製品に組み込みたい企業様との連携を歓迎します。
Committee Memberships 【 display / non-display 】
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日本畜産学会 宮崎大会 実行委員会
2025.7 - 2026.10
Committee type：学協会
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肉用牛研究会 宮崎大会 実行委員会
2024.12 - 2025.10
Committee type：学協会
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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 - 2025.3
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