Document Detail

Epidemiology of salmonella infections in pig units and antimicrobial susceptibility profiles of the strains of Salmonella species isolated.
MedLine Citation:
PMID:  16946309     Owner:  NLM     Status:  MEDLINE    
One hundred and thirteen finishing pig units and 74 sow units in Catalonia, Spain, were examined to determine the prevalence of salmonella infections and the factors that could be associated with them. Pooled faecal samples were taken from the finishing units, and samples of faeces were collected from individual sows. The Salmonella isolates were serotyped, phage typed and examined for their antimicrobial susceptibility to 18 common antimicrobial drugs. In addition, blood samples from pigs on 141 farms were analysed by ELISA. In both the bacteriological and serological surveys, a questionnaire with 84 questions was completed for each farm. Salmonella species were isolated from 20 per cent of the finishing units and 24 per cent of the sow units; 14 serotypes were detected in the finishing pigs and 11 in the sows. More than 30 per cent of the strains were resistant to tetracycline, sulphonamides, ampicillin or streptomycin, and 69 per cent of the strains were resistant to three or more agents up to 10 compounds. Seventy-seven per cent of the farms had at least one seropositive animal, and 26 per cent of these farms had an individual seroprevalence of 50 per cent or more. The factors associated (P<0.05) with the excretion of Salmonella species in the finishing units were the practice of raising livestock other than pigs (odds ratio [OR]=6.18), the herd size (OR=5.87), and a past history of clinical salmonellosis (OR=4.97). For the sows, the factors associated (P<0.05) with the excretion of Salmonella species were having open-flushed drainage of sewage (OR=34.48), a lack of rodent control measures (OR=0.05) and the number of sows in the unit (OR=9.26). Factors associated with seropositivity in the finishing units were a lack of bird-proof nets (OR=0.30) and the use of water from private wells (OR=3.64).
W Mejía; J Casal; D Zapata; G J Sánchez; M Martín; E Mateu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Veterinary record     Volume:  159     ISSN:  0042-4900     ISO Abbreviation:  Vet. Rec.     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2006-09-01     Completed Date:  2006-10-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0031164     Medline TA:  Vet Rec     Country:  England    
Other Details:
Languages:  eng     Pagination:  271-6     Citation Subset:  IM    
Department de Sanitat i Anatomia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
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MeSH Terms
Animal Husbandry / methods*
Anti-Bacterial Agents / therapeutic use*
Antibodies, Bacterial / blood
Bacterial Typing Techniques / veterinary
Drug Resistance, Bacterial
Drug Resistance, Multiple, Bacterial
Feces / microbiology
Microbial Sensitivity Tests
Risk Factors
Salmonella / drug effects*,  immunology,  isolation & purification
Salmonella Infections, Animal / drug therapy,  epidemiology*
Seroepidemiologic Studies
Spain / epidemiology
Swine Diseases / drug therapy*,  epidemiology*
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Antibodies, Bacterial

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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