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KMID : 0359319920320040677
Korean Journal of Veterinary Research
1992 Volume.32 No. 4 p.677 ~ p.681
Indocyanine green excretion test and changes of plasma enzyme activities in Korean native cattle and dairy cattle






Abstract
This experiment was carried out to establish a proper method of indocyanine green(ICG) excrection test for a applicable liver function test in three Korean native cattle average weighing about 450㎏ and dairy cattle parity of 3∼5.
The results obtained the half life(T½), fractional clearance rate(KICG), retention rate and plasma enzyme activities before or after injection of ICG were as follows.
1. The maximum absorbance of ICG in plasma was at 805㎚.
2. Average half life and fractional clearance rate following the injection of ICG 025㎎/㎏ baiy weight were 5.53±1.27 minute and 0.131±0.031/minute in Korean native cattle, 4.55±0.68 minute and 0.156±0.031/minute in dairy cattle, respectively.
The ICG removal rate was exponentially liner for the first 15 minutes after injection both of Korean native cattle and dairy cattle.
3. Average plasma retention rate when 10, 15, 30 minutes after injection was 35.7±13.9, 23.2±7.1, 10.8±3.5% in Korean native cattle, 26.8±3.3. 14.2±1.2, 5.5±2.2% in dairy cattle, respectively.
4. Plasma enzyme activities(AST, ALT, r-GTP) were no variation among the before, during and after injection of ICG.
From these results, ICG excretion test to cattle is applicable to evaluation of liver funtion in both clinical and research, and adopted the 15 minutes plasma sample as the sample taken at the ideal time for comparative purposes.
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학술진흥재단(KCI)