The effect of the PCV2

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See a clue in the article PCV2 viraemia, a load-dependent effect on average daily weight gain du

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The studies describe different ADWG performances depending on the different degrees of PCV2 viraemia: the higher the PCV2 load in serum from weaning to slaughter, the lower the ADWG. These results would explain the benefits of vaccination against PCV2 even on farms without PCV2-SD but suffering from PCV2-SI.