Jones-Hamilton Company, Salisbury, MD.
Avian Pathol. 1998;27(6):566-9. doi: 10.1080/03079459808419385.
In previous studies, Poultry Litter Treatment(R) (PLT(R)) was shown to reduce atmospheric ammonia levels and ascites death rates, and produce higher profit value in broiler chickens. The purpose of the present study was to determine the effect of PLT(R) on atmospheric ammonia levels, the development of respiratory tract lesions, and body weight gains in broiler chickens. Data were collected from chicks that were raised in containment conditions that resembled commercial settings. Atmospheric ammonia levels, gross thoracic air sac lesion scores, and the numbers and magnitudes of histopathologic tracheal mucosal injuries were significantly (P = 0.001) reduced in chickens that were raised on PLT(R)-treated litter than in their untreated-litter control counterparts. In addition, mean body weights and lung:body weight ratios were significantly (P < 0.03) larger in broilers that were raised on treated litter. The reductions in respiratory tract lesions among broilers raised on PLT(R)-treated litter were attributed to reductions in atmospheric ammonia levels.
在之前的研究中，禽粪处理（R）（PLT（R））被证明可以降低大气氨水平和腹水死亡率，并提高肉鸡的利润价值。本研究的目的是确定 PLT（R）对肉鸡大气氨水平、呼吸道病变发展和体重增加的影响。数据来自在类似于商业环境的封闭条件下饲养的雏鸡中收集。在 PLT（R）处理的垫料上饲养的鸡的大气氨水平、总胸气囊病变评分以及组织病理学气管黏膜损伤的数量和程度均显著降低（P=0.001）与未处理垫料对照鸡相比。此外，在处理过的垫料上饲养的肉鸡的平均体重和肺/体重比显著增加（P<0.03）。在 PLT（R）处理过的垫料上饲养的肉鸡呼吸道病变减少归因于大气氨水平降低。
