子めん羊の皮膚温度の変化
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概要
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Changes in skin temperature at five sites of the body under environmental temperature varying from 10° to 30°C werestudied in a psychrometric room where relative humidity was constantly 70 per cent or below. Two 4 - month - old (lambs Nos., 58-5 to 7) and two 10 month-old (lambs Nos., 57-2 to 4) Japanese Corriedale lambs were used. Results obtained are as follows.1. The skin temperature varied with an increase of environmental temperature and with sites of body. The lowest skin temperature was recorded at the fore-shank and the highest at the neck, breast, and flank. The variation of skin temperatures at these three sites showed no consistent trend. The ear gave an intermediate skin temperature.2. The increase of environmental temperature caused a greater rise of skin temperature at the fore-shank than any other site. Cosnequently, the variation of skin temperature was very small at all sites at a low environmental temperature.3. When a I mb was exposed to a constant environmental temperature of 25° or 30°C, its skin temperature changed in 10 minutes. In 4 -month -old lambs, however, skin temperature showed a rise in 20 minutes when they were placed at an environmental temperature of 30°C.4.The skin temperatures determined at an environmental temperature of 30°C were closely associated with the environmental and rectal temperatures.5. Although no possible age difference was found in skin temperature under the increasing environmental temperature, the skin temperatures were higher in 4-month- old lambs under the high environmental temperature than in older ones.
- 公益社団法人 日本畜産学会の論文
公益社団法人 日本畜産学会 | 論文
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