Some points of colostrum-based protection of piglets against PPV [Porcine Parvovirus] infections
1990
Gagrcin, M. | Popovic, M. | Cirkovic, D. (Poljoprivredni fakultet, Novi Sad (Yugoslavia). Veterinarski institut)
Antibody level in the period from birth to the 112th day of age was observed in the blood serum of piglets originated from gilts infected with a pathogenic porcine parvovirus (PPV) strain during gestation. Gilts were infected in the first half of pregnancy with a NDL-8 strain of PPV (National Disease Center, Ames, Iowa, USA). The highest antibody titre was found 24 h after birth and averaged 1:2536. It then dropped continually to be 1:226 on day 28. For the next 14 days titres rose again to reach 1:1289. However, on day 112 of age average titre was only 1:13. There were considerable differences between groups. Titre elevation after 28 days of age can probably be related to the appearance of the piglet own antibodies as a result of the immunologic response to PPV infection.
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