Occurrence of anti-Brucella antibodies in intensive pig farming and in non-technified pig herds

The aim of this study was to determine the occurrence of antibodies anti-Brucella in 1,940 swine blood samples. Out of the 1,940 sera samples, 1,594 were from 30 intensive pig farming from seven different states, collected during the slaughtering of animals, and 346 samples from 56 non-technified (s...

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Bibliographic Details
Authors: Ricardo, Paloma [UNESP], Oliveira, Luís G. [UNESP], Baraldi, Thaís G. [UNESP], Mechler, Marina L. [UNESP], Almeida, Henrique M.S. [UNESP], da Silva, Glaucenyra C.P. [UNESP], Gatto, Igor R.H. [UNESP], Mathias, Luis A. [UNESP]
Format: article
Status:Published version
Publication Date:2016
Country:Brasil
Institution:Universidade Estadual Paulista (UNESP)
Repository:Repositório Institucional da UNESP
Language:English
OAI Identifier:oai:repositorio.unesp.br:11449/169414
Online Access:http://dx.doi.org/10.1590/S0100-736X2016001000002
http://hdl.handle.net/11449/169414
Access Level:Open access
Keyword:Anti-Brucella antibodies
Brucellosis
Pig farming
Serology
Slaughterhouse
Swine
Zoonosis
Description
Summary:The aim of this study was to determine the occurrence of antibodies anti-Brucella in 1,940 swine blood samples. Out of the 1,940 sera samples, 1,594 were from 30 intensive pig farming from seven different states, collected during the slaughtering of animals, and 346 samples from 56 non-technified (subsistence) pig herds from Jaboticabal region, São Paulo State, Brazil. All samples were tested by Buffered Plate Acidified Antigen (BPAA) and considered positive in case of agglutination. If positive, the samples were tested by Complement Fixation Reaction (CFR) as a confirmatory test. Out of the 1,594, two were positive for BPAA but negative for CFR, so the occurrence was 0%. Among the 346 samples, two were positive for BPAA but only one was positive in the confirmatory test, whith a titer of 1:8. Thus, the occurrence was 0.29%, an important result to demonstrate the improvement of the sanitary status of Brazilian non-technified pig herds, despite the low conditions of production.