Details of a Researcher - Kawamoto Yasuhiro

Evaluation of dried mao pomace (Antidesma bunius linn.) and lactic acid bacteria as additives to ensile stylo legume (stylosanthes guianensis CIAT184)

Bureenok S.

Journal of Animal and Plant Sciences ( Journal of Animal and Plant Sciences ) 29 ( 3 ) 783 - 789 2019.06 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)
Prediction of chemical composition in rhodesgrass by near infrared reflectance Spectroscopy

Naokazu ASATO, Kaori KOUKI, Masumi EBINA, Yasuhiro KAWAMOTO, Hideki NIKADORI

Journal of warm resional society of amimal science, Japan ( Warm resional society of amimal science, Japan ) 61 ( 2 ) 63 - 69 2018.03 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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Near Infrared Reflectance Spectroscopy(NIRS)was used to predict chemical composition of rhodesgrass (200 samples from five cultivars). The results indicated that moisture, CP, NDFom, ADFom, ADL and IVDMD contents in rhodesgrass can be predicted by using NIRS techniques with an ac- ceptable accuracy.
近赤外分析法を用いた暖地型牧草ブラキアリアグラスの飼料成分推定

安里直和, 幸喜香織, 蝦名真澄, 甘利雅拡, 大森英之, 川本康博, 島袋宏俊

日本草地学会誌 ( 日本草地学会 ) 63 ( 3 ) 148 - 153 2017

Type of publication: Research paper (scientific journal)

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<p>近赤外分析法を用いて，ブラキアリアグラス（8品種，192点）の飼料成分について検量線を作成した。192点のサンプルのうち，128点のサンプルを検量線作成用試料，残りの64点を検定用試料とした。作成した検量線の精度は，相関係数（r），推定誤差の標準偏差（SDP）およびEI値を用いて評価を行った。部分最小二乗法（PLSR）における，水分，粗タンパク質（CP），粗繊維（CF），中性デタージェント繊維（NDFom），酸性デタージェント繊維（ADFom），酸性デタージェントリグニン（ADL）および乾物消化率（IVDMD）のrは0.91-0.99と高く，SDPについては，0.25-2.38と低かった。また，EI値については，水分およびCPについてAランク，その他の成分についてはBランクと良好な結果が得られた。以上のことより，ブラキアリアグラスの飼料成分およびIVDMDについて，近赤外分析法にて迅速かつ精度高く推定できる結果となった。</p>
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Environmental assessment of a year-round-grazing fattening of Japanese Brown steers in subtropical region

SETOGUCHI Akira, OISHI Kazato, KUMAGAI Hajime, IMAI Yuriko, KAWAMOTO Yasuhiro, HIROOKA Hiroyuki

Journal of the Japanese Agricultural Systems Society ( The Japanese Agricultural Systems Society ) 33 ( 1 ) 1 - 9 2017 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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<p>The objective of this study was to evaluate environmental impacts of a year-round-grazing fattening system in a subtropical region, Okinawa, Japan, using the life cycle assessment (LCA). The fattening system for Japanese Brown steers was an intensive rotational grazing with by-product feeds (brewers grain and broken rice) as total mixed rations (TMR). The functional unit was set to be 1 kg of body weight gain. Impact categories considered were energy consumption, global warming, acidification and eutrophication. The result of LCA showed that the use of by-product feeds reduced the environmental impacts from feed production and transportation, and that the pasture management had a large environmental impact on all the impact categories due to a large amount of fertilizer application for achieving high productivity in grazing fattening. Moreover, three different by-product allocation approaches were compared; economic allocation, mass allocation and no allocation as wastes. The result indicated that mass allocation approach estimated a larger environmental impact on energy consumption than economic allocation and no allocation approaches.</p>
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Effects of liming on dry biomass, lead concentration and accumulated amounts in roots and shoots of three tropical pasture grasses from lead contaminated acidic soils

Htwe W.

Grassland Science ( Grassland Science ) 62 ( 4 ) 257 - 261 2016.10 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)
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Effects of EDTA on dry matter and lead uptake in Brachiaria decumbens and Paspalum atratum from lead contaminated acidic soil,

Win Mi Htwe, Yasuhiro Kawamoto

平成29年度日本草地学会弘前大会 (弘前大学，弘前市) 2017.03 - 2017.03
The determination of the optimal dose of gamma irradiation for mutation breeding in Brachiaria decumbens

Sarayut Thaikua, Kaori Kouki, 川本康博

平成28年度日本草地学会石川大会 (石川県立大学，金沢市) 2016.03 - 2016.03
Two types of grazing system under tropical pasture in South western islands of Japan

Yasuhiro Kawamoto

The 5th International Conference on. Sustainable Animal Agriculture for Developing Countries (the Burapha University in Pattaya, Thailand) 2015.10 - 2015.10
Studies on dry matter yield and Cd uptake of some tropical pasture grasses from Cd contaminated soils

Win Mi Htwe, Yin Yin Kyawt，Sarayut Thaikua，水町進，川本康博

平成26年度日本草地学会信州大会 (伊那市（信州大学）) 2014.03 - 2014.03
暖地型牧草数種におけるアレロパシー活性の検索

今井裕理子・赤嶺光・川本康博

日本草地学会信州大会，平成26年度（第71回）大会，伊那市 2014 - 2014