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Current Affiliation Organization 【 display / non-display 】

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Thesis 【 display / non-display 】

• 我が国南西諸島における放牧地の牧養力の向上に関する研究

  2004.03

Published Papers 【 display / non-display 】

Published Papers 【 display / non-display 】

• Palatability of Fattened Retired Breeding Japanese Black Beef Produced By the Fermented Total Mixed Rations Composed of Food By-Products

  Tomoyuki NAMIHIRA, Sanae ITO1, Yukari UEZATO2, Tomonori YARA, Masayuki MURATA, Daiki KAYANO, Shiori SUZUKI, Mika ARAKAKI, Hiroyasu KINOSHITA

      2026.03 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

• Detection and quantification of species-specific gastrointestinal nematode DNA in goat feces using quantitative PCR.

  Aoyama H, Yara T, Namihira T

  Tropical animal health and production   57 ( 9 ) 511   2025.11 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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• Species and behavioral patterns of wild birds invading a cow barn in the subtropical region: A case study in the central region of Okinawa-jima Island, Japan

  Eto, T; Yara, T; Namihira, T; Imura, Y

  APPLIED ANIMAL BEHAVIOUR SCIENCE ( Applied Animal Behaviour Science )  292   2025.11 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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• Basic research of developing a system fro classification of goat behavior using inertial sensor

  Tadafumi Sugi, Tomoyuki Namihira, Takeshi Eto, Eizo Taira, Yuya Aoyagi, Muneshi Mitsuoka

    87 ( 3 ) 197 - 203   2025.09 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

  　View Summary

  Compared to other livestock, the establishment of husbandry techniques in goats has lagged behind and there is a need to develop behaviors monitoring system for goats. In this study, behavioral features were extracted from time-series data measured from an inertial sensor mounted on the goat's neck. We made training dataset from the feature values for each of ruminating, foraging, resting and other which are important behavioral indicators, and developed a classifier that classifies the four behaviors. As a result, characteristic periodic waveforms indicating ruminating were identified in pitch and yaw angular velocities. In addition, the number of ruminations in diseased goats increased about sevenfold after medication. Furthermore, the accuracy of the developed classifier was 81.9 %.

• What Motivates Urban Dwellers to Engage in Urban Farming?

  Chen, BX; Miyagi, K; Namihira, T; Kayano, D; Aragaki, M; Suzuki, S

  SUSTAINABILITY ( Sustainability (Switzerland) )  16 ( 16 )   2024.08 [ Peer Review Accepted ]

  Type of publication: Research paper (scientific journal)

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• Development of year-round grazing system of meat goat in tropical grass - overcoming parasitic infection -

  Grant-in-Aid for Scientific Research(C)

  Project Year: 2021.04  -  2024.03 

  Investigator(s): Namihira Tomoyuki 

  Direct: 3,200,000 (YEN)  Overheads: 4,160,000 (YEN)  Total: 960,000 (YEN)

• Grant-in-Aid for Encouragement of Scientists

  Project Year: 2012.04  -  2013.03 

  Direct: 600,000 (YEN)  Overheads: 180,000 (YEN)  Total: 780,000 (YEN)

Other External funds 【 display / non-display 】

Other External funds 【 display / non-display 】

• Project Year: 2025.04  -  2026.03 

  Offer Organization: University of the Ryukyus

  Total: 1,500,000 (YEN)

• Project Year: 2024.08  -  2025.03 

  Investigator(s): Tomoyuki Namihira  Member: Daik Kayano 

  Total: 700,000 (YEN)

• Project Year: 2024.04  -  2025.03 

  Investigator(s): Tomoyuki Namihira  Member: Takeshi Eto, Tomonori Yara 

  Total: 1,400,000 (YEN)

• Project Year: 2022.04  -  2023.03 

  Offer Organization: University of the Ryukyus

  Total: 1,400,000 (YEN)

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Social Activity 【 display / non-display 】

• 2026.02

  　

  　

  

• 2025.12

  　

  　

  

• 2023.12

  　

  　

  

• 2023.11

  　

  　

  

• 2023.09

  　

  　

  

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Media Coverage 【 display / non-display 】

Media Coverage 【 display / non-display 】

• 鉄鋼スラグ原料の舗装資材, 耐久性高く普及進む, vs雑草  Newspaper, magazine

  日本農業新聞  2025.9

  Author： Other 

  　View Summary

  日本製鉄九州製鉄所大分地区（大分市）で開発された舗装資材「カタマSP(スペシャル）」の実証試験を琉球大学農学部附属亜熱帯フィールド科学教育研究センターで実施している。本土で実績のある資材を導入し、亜熱帯の環境条件でも防草効果があるのかを長期的にモニタリング中である。