【摘要】 本试验分析了17头妊娠后期患酮病奶牛和19头健康奶牛的十二项颈静脉血液气体和酸碱值指标。结果,酮病奶牛静脉血液气体和酸碱值中,酸碱度、氧分压、缓冲碱、氧饱和度、氧含量五项指标均数与健康奶牛相比无明显变化（p>0.05）;而二氧化碳分压（PCO₂）为38.2±12.5mmHg,剩余碱（BE）-1.9±4.3mmol/l,细胞外液剩余碱（BEecf）为-2.7±5.7mmol/l,实际碳酸氢盐（HCO₃^-）为21.5±6.3mmol/l,二氧化碳总量（CO₂tot）为22.6±6.6mmol/l,标准碳酸氢盐（HCO₃^-St）为21.6±4.0mmol/l,标准酸碱度（pHst）为7.346±0.093,以上七项指标均数与健康奶牛相比明显降低（p<0.05）,说明妊娠后期奶牛酮病对它们的影响较大,认为可做为综合诊断奶牛酮病和掌握妊娠后期奶牛代谢状态的依据。更多还原

【Abstract】 Twelve items of gas,acidity and alkalinity value of venous blood from 17 cows with kelosis at the later period of gestation and 19 health cows as contrast were determined. The results show that the values of pH,po₂,BB,O₂Satand O₂con of the sich cows do not change markedly（p>0.05）, but the values of PCO₂, BE, BE ecf, HCO₃^-, CO₂tot,HCO₃^-st and pH stwas lower than those of healthy co, a （p<0.05）. respectively, 38.2±12.5mmHg, -1.9±4.3mmol/L, -2.7±5.7mmol/Lw 21.5±6.3mmol/L,22.6±6.6mmol /L, 21.6±4.0mmol/L and 7.349±0.093, It implitct ted. that the latter 7 items was influenced by ketosis at the later period of geslaation in Dairy Cattle, Therefore,the latter 7 items can be taken as indications to diagnose ketosis and find out the Condition of metabolism of cow in late pregnancy.更多还原