1Wasilk A, Callahan J D, Christopher-Henninqs J, et al. Detection of U. S. , Lelystad, and European-like porcine reproductive and respiratory syndrome viruses and relative quantitation in boar semen and serum samples by real-time PCR[J]. J Clin Microbiol, 2004,42(10):4453-4461.
2Choi C,Chae C. Detection of classical swine fever virus in boar semen by reverse transcription-polymerase chain reaction[J]. J Vet Diagn Invest, 2003 ,15(1) :35-41.
3Kim J, Han D U,Choi C,et al. Simultaneous detection and differentiation between porcine circovirus and porcine parvovirus in boar semen by multiplex seminested polymerase chain reaction[J]. J Vet Med Sci,2003,65(6):741-744.
4Smit A J, Bouma A, Terpstra C, et al. Transmission of Classical swine fever virus by artificial insemination[J]. Vet Microbiol, 1999,67:239-249.
5Li H, Yang H. Infection of porcine reproductive and respiratory syndrome virus suppresses the antibody response to classical swine fever virus vaccination [J]. Vet Microbiol, 2003,95 (4) : 295-301.
