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This experiment was performed to investigate the electrocardiographic changes in experimentally induced hypocalcemia and hypercalcemia in Korean black goats by dosing with 5% disodiumethylene diamine tetraacetic acid at 0.07㎖/kg body weight/min and 10% Ca-borog-luconate at 0.075 ㎖/kg body weight/min, respectively. the result were summarized as follows： Heart rate, S-T segment and Q-Tc interval at 3.23 ± 0.10mEq/L plasma calcium level(hypocalcemia) were increased to 100±10.5 rate/min, 132 ±10msec and 510±40msec, respectively. Heart rate, S-T segment and Q-T interval at 6.89±0.23mEq/L plasma calcium level(hypercalcemia) were decreased to 73.2±5.16 rate/min, 87±10msec and 372±30msec, respectively. The degree of changes of the heart rate, S-T segment and Q-Tc interval at low plasma calcium level was higher than those at high plasma calcium level.
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