Yersin A G, Huff W E, Kubena L F, Elissalde M H, Harvey R B, Witzel D A, Giroir L E
Agricultural Research Service, Food Animal Protection Research Laboratory, College Station, Texas 77845.
Avian Dis. 1992 Apr-Jun;36(2):189-96.
One-day-old broilers were reared until 35 days of age at both natural low (100 m) and simulated high altitude (2133 m) to assess the incidence and development of ascites syndrome. Clinical measurements were conducted at 7, 14, 21, 28, and 35 days of age. Birds reared at 2133 meters exhibited significantly (P less than or equal to 0.05) reduced body weights at 7 through 28 days of age. Total serum calcium and biochemical enzyme activities were found to be altered at 35 days of age. In addition, the high-altitude group had significantly (P less than or equal to 0.05) higher erythrocyte counts, hematocrits, and hemoglobin at 14, 21, 28, and 35 days of age and higher serum inorganic phosphorus at each weekly sample time than birds at the low altitude. Total mortality was 20.3% at 2133 meters and 4.6% at 100 meters. The incidence of ascites syndrome in the high-altitude group ranged from 16.6% to 61.1% during the 5-week experimental period.
将1日龄的肉鸡分别饲养在自然低海拔（100米）和模拟高海拔（2133米）环境中至35日龄，以评估腹水综合征的发病率和发展情况。在7、14、21、28和35日龄时进行临床测量。在2133米处饲养的肉鸡在7至28日龄时体重显著降低（P≤0.05）。在35日龄时发现血清总钙和生化酶活性发生了变化。此外，在14、21、28和35日龄时，高海拔组的红细胞计数、血细胞比容和血红蛋白显著高于低海拔组（P≤0.05），并且在每个每周采样时间点，高海拔组的血清无机磷也高于低海拔组。在2133米处的总死亡率为20.3%，在100米处为4.6%。在为期5周的实验期内，高海拔组腹水综合征的发病率在16.6%至61.1%之间。
