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| YAMAGUCHI, Toshiro; SAWANO, Kaita; KISHIMOTO, Miori; FURUHAMA, Kazuhisa; YAMADA, Kazutaka; 山田, 一孝. |
| Soil samples from the ground surface and feces and blood from a mixed-breed male pig were collected on April 10, 2011 at a farm within 20 km of the Fukushima Daiichi nuclear power plant. The radioactivity of each sample was measured using a Ge semiconductor detector. Despite the fact that the pig had been fed non-contaminated imported feed, 131I, 134Cs and 137Cs were detected in the feces, and 134Cs and 137Cs were detected in the blood clots. Because it is considerably difficult to measure radioactive contamination in the edible muscle of living livestock, bioassays are an option for the screening of radioactive contamination in living livestock to ensure food safety. |
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Palavras-chave: Bioassay; Cesium; Fukushima; Iodine; Radioactive contamination. |
| Ano: 2012 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3893 |
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| YAMAGUCHI, Toshiro; ENDO, Yoshiro; NAMBO, Yasuo; SATO, Fumio; SASAKI, Naoki; YAMADA, Kazutaka; 南保, 泰雄; 佐々木, 直樹; 山田, 一孝. |
| Equine bone scintigraphy is usually performed with horses in standing position under sedation. However, swaying motion often leads to poor-quality images. To examine the usefulness of motion correction (MC) processing, equine bone scintigrams were evaluated using Scheffé’s method of paired comparisons. A significant difference in evaluation scores was detected by analysis of variance (F test, P<0.01). According to all observers, Yardstick analysis scores were higher for images use of MC processing than for those no use of MC processing, for all parts. Overall scores of 5 observers were as follows: without MC 100% acquisition time (AT, lowest), use of MC with 25% AT, MC 50% AT, MC 75% AT and MC 100% AT (highest). Thus, MC processing shortens AT in equine... |
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Palavras-chave: Bone scintigraphy; Equine; Motion correction; Scheffé’s method of paired comparisons. |
| Ano: 2013 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3894 |
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| YAMADA, Kazutaka; YAMAGUCHI, Toshiro; SAWANO, Kaita; KISHIMOTO, Miori; FURUHAMA, Kazuhisa; 山田, 一孝; 山口, 敏朗; 澤野, 海太; 岸本, 海織; 古濱, 和久. |
| 福島第一原子力発電所から20km圏内で飼育されていた交雑種豚が，事故17日後に清浄区域へ移動し，移動41日後に試料が採材された。Ge半導体検出器を用いて，バラ，モモ，ロース及び心臓のγ線スペクトルを測定したところ，放射性セシウムの存在が確認された。被検豚は移動前後ともに豚舎で飼育され，生涯汚染のない輸入飼料で飼養されていた。牛肉の放射能汚染の原因は汚染された稲藁と報道されているが，稲藁だけが汚染の原因ではない可能性がある。次世代のために，食の安全の観点から牛肉のみならず他の畜産物についても監視が必要である。 |
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Palavras-chave: Caesium; Food safety; Fukushima; Pig; Pork; Radioactive contamination. |
| Ano: 2012 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3827 |
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