猪繁殖障碍与呼吸道综合征（PRRS）和猪圆环病毒2型（PCV-2）是近几年来严重危害猪群的两大免疫抑制性疾病。
Porcine reproductive and respiratory syndrome(PRRS) and porcine circovirus type 2(PCV-2) are two immunosuppressive diseases which are greatly endangering swine in recent years.
猪繁殖与呼吸综合征(PRRS)是当前严重危害我国养猪业的重要传染病。
Porcine reproductive and respiratory syndrome (PRRS) becomes an economically significant disease for the Chinese swine industry.
猪繁殖与呼吸综合征(PRRS)是当前严重危害我国养猪业的重要传染病。
Porcine reproductive and respiratory syndrome (PRRS) becomes an economically significant disease for the Chinese swine industry.
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