Fairbrother A, O'Loughlin D
United States Environmental Protection Agency, Corvallis, Oregon 97333.
J Wildl Dis. 1990 Jan;26(1):78-82. doi: 10.7589/0090-3558-26.1.78.
Differential white blood cell counts were recorded for adult mallards (Anas platyrhynchos) of both sexes during several stages of reproduction: pre-egg laying, egg laying, incubating, molting, and postreproductive. Similar counts were made for young birds from 5 to 60 days of age. No significant (P less than or equal to 0.05) differences amongst the cell ratios due to sex or reproductive state of the adult birds were noted. Nonlaying and laying birds had similar numbers of thrombocytes which were significantly greater than thrombocyte numbers of incubating, molting or postreproductive birds. Young birds had a decrease in the percent lymphocytes from 50 to greater than 60 days of age and a concomitant, compensating increase in percent heterophils. Thrombocyte numbers increased from 5 days of age to a peak at 18 days of age, after which they did not vary significantly.
在繁殖的几个阶段对成年雌雄野鸭（绿头鸭）进行了白细胞分类计数：产蛋前、产蛋期、孵化期、换羽期和繁殖后期。对5至60日龄的幼鸟进行了类似的计数。未发现成年鸟类的细胞比例因性别或繁殖状态而存在显著差异（P≤0.05）。不产蛋和产蛋的鸟类血小板数量相似，显著高于孵化期、换羽期或繁殖后期鸟类的血小板数量。幼鸟的淋巴细胞百分比从50日龄到60日龄以上有所下降，同时嗜异性粒细胞百分比相应增加以作补偿。血小板数量从5日龄增加到18日龄达到峰值，之后没有显著变化。
