Hauska H
Institut für Geflügelkrankheiten, Ludwig-Maximilians-Universität München.
Tierarztl Prax. 1994 Aug;22(4):324-8.
In order to evaluate the development of the erythrogram of growing parrot nestlings, blood samples were taken monthly from birds of six different parrot species at the age of 30-200 days. Values for the packed cell volume (PCV), the total red blood cell count (TRBC) and the hemoglobin content (Hb) were determined directly and served as basic data for the calculation of the red blood cell indices MCV (mean cellular volume), MCH (mean cellular hemoglobin) and MCHC (mean cellular hemoglobin concentration). Additionally, stained blood smears were evaluated microscopically to judge the morphology of the red blood cells. The results of five species confirmed most results from earlier publications. The data from the species Pyrrhura leucotis formed an exception. The birds showed a decrease of the Hb during the investigated period. Simultaneously, an increase of the PCV and the TRBC could be observed. Thus an anemia as possible cause for the development of the hemoglobin content is rather unlikely. Possibly a certain hemoglobin structure compensates for this development and may be of metabolic advantage for the affected species.
为了评估生长中的鹦鹉雏鸟红细胞图的发育情况，每月从6种不同鹦鹉物种30至200日龄的鸟类中采集血样。直接测定血细胞比容（PCV）、总红细胞计数（TRBC）和血红蛋白含量（Hb）的值，并将其作为计算红细胞指数平均细胞体积（MCV）、平均细胞血红蛋白（MCH）和平均细胞血红蛋白浓度（MCHC）的基础数据。此外，对染色血涂片进行显微镜评估，以判断红细胞的形态。五个物种的结果证实了早期出版物中的大多数结果。白耳锥尾鹦鹉（Pyrrhura leucotis）物种的数据则是个例外。在所研究期间，这些鸟类的Hb有所下降。同时，可以观察到PCV和TRBC有所增加。因此，贫血作为血红蛋白含量变化的可能原因相当不可能。可能某种血红蛋白结构补偿了这种变化，并且可能对受影响的物种具有代谢优势。
