Steinhardt M, Thielscher H H
Institut für Tierzucht und Tierverhalten (FAL) Mariensee.
Dtsch Tierarztl Wochenschr. 1997 Mar;104(3):99-103.
Peripheral venous blood samples taken from pregnant and lactating dairy cattle, from young cattle and from new born calves as well were analysed for hemoglobin content, hematocrit, oxygen saturation, oxygen capacity, oxygen content and for the hemoglobin derivatives O2Hb, HHb, COHb, MetHb and SHb. Significant differences of mean values could be pointed out between age groups and breeds. Strong negative correlations exist between MetHb fraction and hemoglobin content in dairy cattle and in new born calves but not in young cattle. Elevated COHb and MetHb fractions were discussed in connection with erythropoesis, regeneration of erythrocyte mass and vascular adaptation.
采集了怀孕和哺乳期奶牛、幼牛以及新生犊牛的外周静脉血样本,分析其血红蛋白含量、血细胞比容、氧饱和度、氧容量、氧含量以及血红蛋白衍生物O2Hb、HHb、COHb、MetHb和SHb。各年龄组和品种之间的平均值存在显著差异。奶牛和新生犊牛的高铁血红蛋白(MetHb)比例与血红蛋白含量之间存在强负相关,但幼牛不存在这种情况。结合红细胞生成、红细胞总量的再生和血管适应,对碳氧血红蛋白(COHb)和高铁血红蛋白比例升高的情况进行了讨论。