Effects of hyper gravity on mouse behavior
| Autor: | Takei, Gen, Okuno, Makoto |
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| Jazyk: | japonština |
| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | 宇宙利用シンポジウム 第24回 平成19年度 = Space Utilization Research: Proceedings of the Twenty-fourth Space Utilization Symposium. :255-258 |
| Popis: | Effects of hyper gravity (3G) on mouse behavior were examined. Mature mouse exposed to 3G initially showed smaller amount of food consumption, short feeding period and weight loss. Four days after exposure started, feeding period increased and at the same time food intake and body weight also increased. These results suggest that little food intake and loss of weight may be due to the appetite suppression. Compared to the mouse under 1G environment, 3G mouse showed 'pressed' posture. We employed the bend angle of the back of the mouse as the index of the posture. Then back angle decreased immediately after exposure to hyper-gravity and recovered within four days. It was likely that posture recovered because body load is reduced by decreasing weight. The mouse under 3G environment also exhibited little horizontal and vertical movement. These parameters didn't increase until 10 days from the onset of exposure. Thus, it could be assumed that increase of movement and recovery of posture are regulated by other mechanisms. 資料番号: AA0063706068 |
| Databáze: | OpenAIRE |
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