Evaluation of colostral immunity in swine with commercial anti-leptospira polyvalent whole-bacteria vaccine
- 作者：Francisco Rafael Martins Soto ; Sô ; nia Regina Pinheiro ; Fumio Honma Ito ; Zenaide Maria Moraes ; Amane Paldes Gonç ; ales ; Sé ; rgio Santos de Azevedo ; Fern ; a Bernardi ; Sebastiã ; o Rodrigues C
- 关键词：Swine leptospirosis ; Colostral immunity ; Bacterin ; Swine
- 刊名：Comparative Immunology ; Microbiology and Infectious Diseases
- 出版年：2008
- 期刊代码：52_01479571
- 类别：bio
- 出版时间：July 2008
- 卷：31
- 期：4
- 页码：327-335
- 文件大小：128 K
摘要
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.