期刊
COMPARATIVE IMMUNOLOGY MICROBIOLOGY AND INFECTIOUS DISEASES
卷 36, 期 5, 页码 489-498出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.cimid.2013.05.002
关键词
Salmonella; Vaccine; Control; Farm; Typhimurium; Pig
资金
- Ministerio de Agricultura, Pesca y Alimentacion
- Ministerio de Ciencia y Tecnologia [GL2002-04161-C02-01]
- Centro para el Desarrollo Tecnologico Industrial Project [IDI-200903819]
- Junta de Castilla y Leon Project [C137.s]
- Consejeria de Educacion of the Junta de Castilla y Leon
- European Social Fund
The efficacy of an inactivated S. Typhimurium vaccine administered to pigs at the beginning of the fattening period was evaluated in four clinical trials (trials A, B, C and D). Faecal shedding and the systemic antibody response during fattening, as well as, the cecal contents and mesenteric lymph nodes collected after slaughtering were used to assess the outcome. Salmonella shedders prevalence in the control groups was six times higher than in the treated groups in trials A and D, both herds infected by S. Typhimurium. The risk of positive pens was also four or five times higher for the pens housing control pigs in trials A and C. Lower prevalence of Salmonella was observed in the slaughter samples from the vaccinated pigs in trial D and in the cecal content samples in trial A, when just the S. Typhimurium results were compared. The results suggest the effective homologous protection of the vaccinated pigs; however, the high humoral response elicited in the vaccinated pigs complicates their use in farms under serological surveillance programmes. (C) 2013 Elsevier Ltd. All rights reserved.
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