Rawlings C A, Bisgard G E
Am J Vet Res. 1975 Jan;36(1):45-8.
Renal clearance and excretion of endogenous substances were studied in 13 small adult ponies (152 plus or minus 93 (standard deviation (SD)) kg). Normal data of serum and urinary concentrations, clearance, and excretion of creatinine, osmolality, free water, sodium, potassium, and chloride during a 12-hour period are presented. Significant linear regressions on body weight (BW) were obtained for creatinine clearance (Ccr (ml/hr) = 127.2 times BW (kg) - 1553), osmolar clearance (Cosm(ml/hr) = 1.81 times BW (kg) m0.3), and free water (CH2O(ml/hr) = - 1.43 BW (kg) - 25.0). Compared with renal excretion of man, kidneys of ponies seem to conserve more sodium and chloride and excrete more potassium.
对13匹成年小型矮种马（体重152±93（标准差）千克）的内源性物质肾清除率和排泄情况进行了研究。给出了12小时内血清和尿液中肌酐、渗透压、自由水、钠、钾和氯的浓度、清除率及排泄的正常数据。肌酐清除率（Ccr（毫升/小时）= 127.2×体重（千克）- 1553）、渗透清除率（Cosm（毫升/小时）= 1.81×体重（千克）^0.3）和自由水（CH2O（毫升/小时）= - 1.43×体重（千克）- 25.0）与体重（BW）之间存在显著线性回归关系。与人类的肾脏排泄相比，矮种马的肾脏似乎保留更多的钠和氯，排泄更多的钾。
