| 释义 |
PRDCCOCA³¹⁵¹¹¹⁺⁴
基本例句
=Polar Research and Development Center 极地研究发展中心美陆军
In order to ascertain main pathogens ofPRDCand provide scientific preventive andcontrol methods, the research was carried out.本研究的目的在了解我省猪呼吸系统疾病的感染状况，确定猪呼吸系统疾病病原，为制定科学合理的防制对策提供理论依据。
Typical signs ofPRDCinclude body temperature rising,cough,dyspnea, low feed effect and low growth rate, which finally caused low growthperformance and high death rate.PRDC最典型的症状包括体温升高、呼吸困难、咳嗽、饲料转化率降低以及生长缓慢和发育不均匀、死亡率升高等。
From the other,empirical study indicate thatPRDCtightly associates withporcine reproductive and respiratory virus swine influenza virus porcine circoviruses and mycoplasma hyopneumoniae,andPRDCis the cause of these virus.实验研究从另一方面表明PRDC与猪呼吸与繁殖综合征病毒、猪流感病毒、猪圆环病毒2型、猪肺炎支原体有紧密的相关性,这四种病毒是原发原因。
Total 420 serum samples from twentyintensive pig farms were tested in different districts in Hainan province.The resultsshowed thatPRDCwas very common in pig farms, but infected rate different.通过笔者对省内不同县、市的20个规模化猪场共420份血清进行的血清流行病学调查，结果表明，我省各地猪场普遍存在PRDC感染，但各场之间及各猪群之间PRDC的感染状况不尽相同。
The porcine respiratory disease complexPRDC猪呼吸道病复合体 |