The results showed the positive for PPV DNA and PUP recombinant plasmid,but negative for the control virus and PK 15.The DNA detection limit was 40pg DNA.

• 结果探针与猪细小病毒DNA、PUP质粒的杂交呈阳性反应，而对照病毒、PK－15呈阴性反应，探针的最低检出限量为40pgDNA。