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University of the Ryukyus Repository >
Faculty of Agriculture >
Bulletin >
The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus >
No.28 (1981/11) >
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| Title | : | 沖縄における暑熱環境下のホルスタイン雌牛の体温,呼吸数および脈搏数の変動(畜産学科) |
| Title alternative | : | Changes of body temperature, respiration rate and pulse rate of lactating Holstein cows in the warm environmental temperature in Okinawa (Department of Animal Science) |
| Authors | : | 日吉, 文樹
古謝, 瑞幸
仲田, 正
渡嘉敷, 綏宝
山内, 修 |
| Authors alternative | : | Hiyoshi, Fumiki
Koja, Zuiko
Nakada, Tadashi
Tokashiki, Suiho
Yamauchi, Osamu |
| Issue Date | : | 30-Nov-1981 |
| Abstract | : | 沖縄においてホルスタイン泌乳牛の気温の上昇に伴う体温, 呼吸数および脈搏数の変化との関係について研究した。これらの測定は1977年5月から9月までの間に, 1日4回, 午前8時半, 正午, 午後5時, 午後9時に行った。測定期間の舎内の平均気温は22°∿33℃の範囲を変動した。結果は下記の通りである。1.体温および呼吸数は気温の上昇に伴い増加した。体温と呼吸数の臨界気温はそれぞれ28℃と26℃であるように思われた。2.脈搏数は, 気温の上昇に伴って変化しなかった。3.測定月別にみると体温と呼吸数は7月に最も高い値を示し, 測定時刻別では全期間を通して午後5時に高くなった。
Body temperature, respiration rate and pulse rate of lactating Holstein cows were measured from May to September in Okinawa. Measurements were daily made at 08 : 30,12 : 00,17 : 00,and 21 : 00 in the dairy barn. Temperatures in the dairy barn were varied in the range from 22 to 33℃ during the experimental period. Results are summarized as follows 1. The body temperature and respiration rate increased with a rise of the environmental temperature. It seemed that the critical temperature for the body temperature and respiration rate were 28℃ and 26℃, respectively. 2. The pulse rate did not change with increasing ambient temperature. 3. The body temperature and respiration rate in July were significantly higher than those in other months. These values reached a maximum at 17 : 00 during the experimental period. |
| Type Local | : | 紀要論文 |
| ISSN | : | 0370-4246 |
| Publisher | : | 琉球大学農学部 |
| URI | : | http://hdl.handle.net/20.500.12000/4062 |
| Citation | : | 琉球大学農学部学術報告 = The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus no.28 p.187 -195 |
| Appears in Collections | : | No.28 (1981/11)
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