Research Article Development of a Conventional RT-PCR Assay for Rapid Detection of Porcine Deltacoronavirus with the Same Detection Limit as a SYBR Green-Based Real-Time RT-PCR Assay Lei Ma ,1 Fanwen Zeng,2 Bihong Huang,1 Feng Cong,1 Ren Huang,1 Jingyun Ma ,2 and Pengju Guo 1 1Guangdong Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals, Monitoring Institute, Guangzhou, China 2College of Animal Science, South China Agricultural University, Guangzhou, China Correspondence should be addressed to Jingyun Ma;