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Parvovirus Antibodies in Vaccinated Gilts in Field Conditions – Results with HI and ELISA tests
Author(s) -
Oravainen J,
Hakala M,
Rautiainen E,
Veijalainen P,
Hein M,
Tast A,
Virolainen JV,
Peltoniemi OAT
Publication year - 2006
Publication title -
reproduction in domestic animals
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.546
H-Index - 66
eISSN - 1439-0531
pISSN - 0936-6768
DOI - 10.1111/j.1439-0531.2006.00658.x
Subject(s) - porcine parvovirus , seroconversion , antibody , vaccination , herd , erysipelothrix rhusiopathiae , culling , virology , biology , infertility , pregnancy , vaccine failure , immunity , medicine , immunization , immunology , veterinary medicine , immune system , microbiology and biotechnology , genetics
Contents This study was conducted to determine the antibody response for porcine parvovirus (PPV) of 39 gilts in field conditions after vaccination. Gilts from four herds endemically infected with PPV were injected twice with a commercial vaccine of inactivated PPV and Erysipelothrix rhusiopathiae . The PPV antibodies were analysed both with haemagglutination inhibition (HI) and enzyme‐linked immunosorbent assay (ELISA) in order to study the agreement between these methods. The possible association between high‐antibody titres and reproductive failure (repeat breeding, culling for infertility, ≤6 piglets born alive) was also investigated. In these study herds, endemically infected by PPV, most gilts (84.6%) had not seroconverted by the age of 6 months. On‐field vaccination resulted in a consistent increase of humoral immunity not exceeding the antibody level of 1 : 512 in the majority of gilts in all herds examined. The agreement between ELISA and HI tests was moderate (Spearman's ρ = 0.87, κ = 0.63). The seroconversion over the level >1 : 512 by mid‐pregnancy was not associated with reproductive failure.