Associations between the proportion of Salmonella seropositive slaughter pigs and the presence of herd level risk factors for introduction and transmission of Salmonella in 34 Danish organic, outdoor (non-organic) and indoor finishing-pig farms

作者：Zheng D M; Bonde M^*; Sorensen J T

来源：Livestock Science, 2007, 106(2-3): 189-199.

DOI：10.1016/j.livsci.2006.08.003

• correspondence analysis
• organic production
• pig production system
• risk factors
• Salmonella seroprevalence

This paper evaluates the association between herd level risk factors for introduction and transmission of Salmonella in farms with three different production systems: organic, outdoor (non-organic) and indoor finishing-pig farms, and the presence of scropositive animals in the herds. Potential risk factors for Salmonella in the three pig production systems were identified through a literature review, and management information as well as serological data were collected in 34 pig farms: I I organic farms, 12 outdoor farms, and I I indoor farms. There were no general differences in the proportion of Salmonella seropositive animals in the organic, outdoor, and indoor pig farms. Correspondence analysis showed that the occurrence of scropositive animals in the herds was mostly associated to the risk of introducing Salmonella in the herds by purchasing and transporting growing pigs. No associations between herd risk factors for transmission and survival of Salmonella and seropositive animals in the herds were found.

• 出版日期2007-2
• 单位中国农业大学