Reece W O
Am J Vet Res. 1984 Mar;45(3):437-9.
Twenty-one calves, 16 weeks of age, comprised 3 treatment groups. All calves in 2 of these groups were anemic. Several variables were measured before and immediately after an imposed exertion period. The anemic calves had significantly faster heart rates than did nonanemic calves, but there was no significant difference either in respiratory rates or acid-base variables. However, anemic calves became more acidic when made to work and also showed greater increase in respiratory rate than did nonanemic calves. The partial pressure of oxygen in venous blood was significantly lower in the anemic calves than in nonanemic calves both before and after exertion, but still represented adequate saturation of hemoglobin with oxygen.
21头16周龄的小牛被分成3个治疗组。其中两组的所有小牛都贫血。在强制运动期之前和之后立即测量了几个变量。贫血小牛的心率明显快于非贫血小牛，但呼吸频率或酸碱变量没有显著差异。然而，贫血小牛在运动时酸性更强，呼吸频率的增加也比非贫血小牛更大。运动前后，贫血小牛静脉血中的氧分压均显著低于非贫血小牛，但血红蛋白的氧饱和度仍足够。
