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猪细小病毒感染( porcine parvovirus infection ) PowerPoint PPT Presentation


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猪细小病毒感染( porcine parvovirus infection ). 猪细小病毒 ( porcine parvovirus,PPV) 可引起猪的繁殖障碍性疾病,特征为感染母猪,特别是初产母猪产出死胎、畸形胎、木乃伊胎、流产及病弱仔猪。母猪本身无明显症状。本病于1967年在英国报道,现已遍布全世界。 近年来的研究发现 PPV 可提高 PCV-2 感染猪的发病率。. 病原. 猪细小病毒,属细小病毒科细小病毒属。病毒粒子呈圆形或六角形,无囊膜, 直径约为20 nm, 基因组为单股 DNA。

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猪细小病毒感染( porcine parvovirus infection )

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(porcine parvovirus infection)

(porcine parvovirusPPV),1967 PPVPCV-2


20nmDNA

PK15STIBRS2


PPVNADL-8NADL-2

PPV5648h805minpH


  • 9


  • 80-100


  • 30-50d

  • 50-60d

  • 60-70d

  • 70d


  • ()



  • 1-6d1-27-9d21d115000


PCR


HI12562HI

234


  • 1424HI180


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