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No.27 (1980/11) >

Title :メン羊のノルアドレナリンおよびアドレナリンの尿中排泄量に及ぼす飼育場移動の影響(畜産学科)
Title alternative :Effects of moving from barn to climatic chamber on urinary catecholamine secretion in sheep (Department of Animal Husbandry)
Authors :大城, 政一
佐々木, 康之
津田, 恒之
Authors alternative :Oshiro, Seiichi
Sasaki, Yasuyuki
Tsuda, Tsuneyuki
Issue Date :29-Nov-1980
Abstract :メン羊の飼育場を換えることがストレスとして作用し, 尿中ノルアドレナリン, アドレナリン排泄量と各種の生理諸元に影響を及ぼすか否かについて検討を行った。その結果, 温・湿度環境の変動する畜舎内においては直腸温38.33±0.09℃, 心拍数70.4±2.2回/分, 呼吸数16.3±0.7回/分であり, 20℃・70%に調節してあるズートロン内では直腸温38.71±0.11℃, 心拍数73.2±3.3回/分, 呼吸数19.3±1.4回/分であって両者間には有意な差異はなかった。メン羊の畜舎内・ズートロン内の移動前後における経時的変化において, 移動直後に直腸温の上昇, 心拍数および呼吸数の増加が認められたが, いずれも2∿3時間後に移動前の値に回復した。尿中NA・A排泄量および尿量は畜舎内で12.15±2.24μg/日, 2.76±0.60μg/日および1154±135ml/日, ズートロン内で14.03±2.55μg/日, 2.15±0.63μg/日および1064±129ml/日であって両飼育場間に有意差はなかった。しかし, 尿中NA排泄量がズートロン内への移動初日に僅かに高い値を示した。また, 尿中A排泄量はズートロン内で0.61μg/日の低下を示した。
To determined the effects of transferring sheep from a barn to a climatic chamber on their physiological responses, the amount of the urinary excretion of noradrenaline and adrenaline, rectal temperature, heart rate, respiratory rate, urine volume of the sheep used were measured. Three female corriedale sheep (45±3kg in body weight) were kept in barn in which a temperature and relative humidity were a range between 18.9℃ and 14.7℃ and 88.4% and 70.1%, respectively. On the other hand, a temperature and a relative humidity in a climatic chamber were steadily maintained at 20℃ and 70%, respectively. The mean values of the daily urinary excretion of noradrenaline and adrenaline, measured over a week, were 12.15±2.24 and 2.76±0.60μg/day in the barn used and 14.03±2.55 and 2.15±0.63μg/day in the chamber used, respectively. The catecholamine excretion rate, rectal temperature, heart rate, respiratory rate and urine volume of the sheep tested were all within normal ranges in both circumstances. The highest value on the first day of transferring into the climatic chamber out of the sheep barn used in this work. The rectal temperature, heart rate and respiratory rate of the sheep transferred from the barn to the chamber, measured every fifteen minutes, remarkably rose just after the transferring and gradually fell to the levels observed before the transferring within few hours.
Type Local :紀要論文
ISSN :0370-4246
Publisher :琉球大学農学部
URI :http://hdl.handle.net/20.500.12000/4111
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.27 p.309 -314
Appears in Collections:No.27 (1980/11)

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