Goodwin M A, Davis J F, Brown J
Georgia Poultry Laboratory, Oakwood 30566.
Avian Dis. 1992 Apr-Jun;36(2):440-3.
Packed cell volume (PCV) reference intervals were established for use in diagnosing anemia and polycythemia in young broiler chickens. Blood samples were collected from one hundred twenty 3-to-49-day-old clinically healthy conventionally reared broiler chickens. PCVs were determined and analyzed. PCVs regressed significantly (P less than 0.025) on age, which shows that neonatal physiologic anemia occurs in broiler chickens, as well as in mammals and specific-pathogen-free (SPF) chickens. The definition for anemia in broiler chicks varies with age. We defined anemia as a PCV less than or equal to 26%, 29%, 33%, 32%, 33%, 33%, 31%, and 28% for broiler chickens, 3, 7, 14, 21, 28, 35, 42, and 49 days old, respectively. We define polycythemia as a PCV greater than or equal to 42%, 43%, 41%, 40%, 42%, 42%, 41%, and 40% for broiler chickens 3, 7, 14, 21, 28, 35, 42, and 49 days old, respectively. Otherwise, broiler chickens have PCVs within established reference intervals. Results provide guidelines for detecting anemia and polycythemia in young broiler chickens of various ages.
建立了红细胞压积（PCV）参考区间，用于诊断幼龄肉鸡的贫血和红细胞增多症。从120只3至49日龄临床健康的传统饲养肉鸡中采集血样。测定并分析了红细胞压积。红细胞压积与年龄呈显著负相关（P小于0.025），这表明肉鸡与哺乳动物和无特定病原体（SPF）鸡一样会出现生理性贫血。肉鸡雏鸡贫血的定义随年龄而异。我们将3、7、14、21、28、35、42和49日龄肉鸡的贫血分别定义为红细胞压积小于或等于26%、29%、33%、32%、33%、33%、31%和28%。我们将3、7、14、21、28、35、42和49日龄肉鸡的红细胞增多症分别定义为红细胞压积大于或等于42%、43%、41%、40%、42%、42%、41%和40%。否则，肉鸡的红细胞压积在既定参考区间内。研究结果为检测不同年龄幼龄肉鸡的贫血和红细胞增多症提供了指导。
