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Immune response to type-2 porcine circovirus in weaned pigs

HONG CHEN, KE-YING ZHANG, XUE-MEI DING, ZHI-WEN XU, DAI-WEN CHEN, GANG TIAN
2010 Turk veterinerlik ve hayvancilik dergisi  

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Sixteen crossbred barrows (Duroc × Landrace × Yorkshire) weaned at 28 days with an initial body weight of 5.12-8.64 kg and no antibodies to PCV2 were used in a 5-week trial to evaluate the immune response after intranasal inoculation with type-2 porcine circovirus. The percentage of peripheral blood ANAE + T cells, PCV2 antibody titer, immunoglobulins, and serum IFN-γ, IL-2, and sIL-2R levels were determined. The results show that the percentage of peripheral blood ANAE + T cells was notably
more » ... her in inoculated pigs 5 days post-inoculation (dpi) and significantly lower 21 dpi than in the control group. The anti-PCV2 titer in the inoculated group was significantly higher than that in the control group 14 dpi. The immunoglobulin profile of the 2 groups also differed. The IFN-γ level in the inoculated group decreased significantly from 7 to 28 dpi, as compared with the control group. The results suggest that PCV2 challenge results in an immune system response.
doi:10.3906/vet-0807-13 fatcat:qgopcpjncndsxlzt5uons62vpm
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HONG CHEN, KE-YING ZHANG, XUE-MEI DING, ZHI-WEN XU, DAI-WEN CHEN, GANG TIAN. "Immune response to type-2 porcine circovirus in weaned pigs." Turk veterinerlik ve hayvancilik dergisi (2010)