Abstract
Abstract The objective of this work was to develop an index of adequacy to minimum biosecurity conditions (IAB) to express the external biosecurity level of pig farms in the state of Santa Catarina, Brazil. Pig farms of producers registered in the database of Companhia Integrada de Desenvolvimento Agrícola de Santa Catarina were sampled through an online questionnaire, with 76 questions on farm identification, production system, relationship with the agroindustry, herd size, and external biosecurity. One hundred questionnaires were answered by the farmers, showing the existence, partial existence, or absence of biosecurity practices, with scores of 1.0, 0.5, and 0.0, respectively, used to calculate the IAB of each farm. The farrow to weaning farms were grouped into three categories of production units (farrow to finishing, farrow to rearing, or farrow to weaning) and two of relationships with the production chain (integrated or independent). The investments necessary to achieve the ideal biosecurity practices were estimated. The farms with a low IAB (< 40%) represented 33% of the total, and the remaining 67% of the farms were classified with a medium or high index, evidencing a good external biosecurity. The IAB can be used to measure the biosecurity of pig farms and, based on their classification, to support the design of intervention plans.
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