The serum ionized calcium, citrate, bicarbonate, sodium, serum creatinine and ureaconcentration.
监测血清游离钙、枸橼酸、血钠、碳酸氢根浓度；
2
The average plasma ureaconcentration has decreased and its variation was more smooth after feeding the ration containing Starea than urea.
与尿素日粮相比，动物采食含糊化淀粉尿素日粮后外周血液尿素浓度有所下降，且动态变化也相对平稳。
3
It was found that when the ureaconcentration of wastewater was higher than 26.3%, urea would crystallize with ice before the freeze concentration limitation.