心拍數로부터 1日 Energy消費量을 推定하기 위한 調査法의 簡易化 = On Simplifying the Method to Estimate the 24 Hours Energy Expenditure from the Heart Rate

국문 초록 (Abstract)

年의 1일 Energy 消費量을 心拍數로부터 推定하려 할 때 종래는 行動型別 代表心拍數와 그 行動時間으로 算出해왔다. 이 方法을 簡易化하기 위해 1일의 平均心拍數만으로 算出 可能여부를 檢討했다.
1) 舍飼牛 및 放牧牛 各 3頭씩을 공시하여 心拍數와 熱發生量과의 回歸式을 個體別로 구했다. 放牧牛에 대한 回歸係數는 舍飼牛에 비해 꽤 작았다.
2) 1일의 平均心拍數?를 推定하기 위해 5, 10, 20, 40, 80分 간격으로 心拍數를 測定 ( 각 5분간 計測)해본 결과 5分間隔測定値에 대해 20分 간격 미만의 測定値가 매우 근소한 差임을 알았다.
3) 行動調査에 근거한 각 行動型別의 代表心拍數 와 行動時間으로부터 算出한 熱發生量에 대해 20分 간격 測定値으로 구한 1일의 平均心拍數로부터 算出한 熱發生量이 거의 일치하는 것을 확인했다.

다국어 초록 (Multilingual Abstract)

In order to estimate the 24 hours energy expenditure of cattle, the methods using both representative heart rate and spent time for each behaviour has been practical up to this time. In this study a simple method using only the mean heart rate during 24 hours was examined.
1. There fed and three grazing cattle were used to get individually the regression equation of heat production to heart rate. The regression coefficient for grazing cattle was much smaller than that for fed cattle.
2. In order to estimate the 24 hours mean heart rate, the five minutes counting measurements were carried out at each interval of 5,10,20,40,80 minutes. The mean heart rate measured at 20 minutes interval was very little different from that measured at 5 minutes interval, meaning the continuous measurement.
3. The heat production calculated fro both representative hear rate and spent time for each behaviour was nearly the same to that calculated from the 24 hours mean heart rate which was measured at 20 minutes interval.