Evaluation of colostral immunity in swine with commercial anti-leptospira polyvalent whole-bacteria vaccine.
The intensity and duration of passive immunity against swine leptospirosis were investigated by the microscopic agglutination test and in vitro leptospira growth inhibition. Twenty-one females at first parturition were divided into three groups: Group A (n=08): received two doses with 30 days interval of the commercial anti-leptospira bacterin A. Group B (n=06) received two doses with 30 days interval of the commercial anti-leptospira bacterin B and Group C (n=07) was the control. In all groups the colostrums were collected. Blood collection of piglets was performed in four different ages. Agglutinin antibodies were equally detected in sera and colostrums for serovars Canicola, Grippotyphosa, Copenhageni, Icterohaemorrhagiae and Pomona (Group A) and Canicola, Copenhageni, Icterohaemorrhagiae, Pomona and Hardjo (Group B). Mean neutralizing antibodies titers were low. Passive immunity was low duration.
Martins Soto
Francisco Rafael
FR
Center for Sanitary Surveillance and Zoonoses Control "Tereza Rodrigues de Camargo", Estrada da Vargem do Salto, Km 4,5, Bairro dos Paes, CEP 18150-000, Ibiúna, SP, Brazil. chicosoto@ig.com.br
Regina Pinheiro
Sônia
S
Honma Ito
Fumio
F
Maria Moraes
Zenaide
Z
Paldes Gonçales
Amane
A
Santos de Azevedo
Sérgio
S
Bernardi
Fernanda
F
Rodrigues Camargo
Sebastião
S
Arruda Vasconcellos
Silvio
S
D000372:Agglutination Tests; D000818:Animals; D000907:Antibodies, Bacterial / Q000097:blood*; D001428:Bacterial Vaccines / Q000276:immunology*; D003126:Colostrum / Q000276:immunology*; D005260:Female; D007112:Immunity, Maternally-Acquired; D007919:Leptospira / Q000276:immunology*; D007922:Leptospirosis / Q000276:immunology / Q000662:veterinary; D011247:Pregnancy; D034421:Sus scrofa / Q000276:immunology*; D013553:Swine Diseases / Q000276:immunology
D000907:Antibodies, Bacterial; D001428:Bacterial Vaccines