In recent times, the interest in biosecurity in pig facilities has grown exponentially due to the severe threat to the swine industry worldwide represented by epidemic pathogens and globalization. The outcomes of biosecurity have been monitored through antimicrobial use, and economic and technical performances in pig farms, but limited quantitative data are available regarding animal-based biomarkers over time as output parameters. By means of tailor-made biosecurity protocols, we monitored—over a 12-month period—the biosecurity implementation in swine farms, and described animal-based biomarkers as output parameters. The results shown by the present study suggest that a systematic evaluation of biosecurity is a useful approach to formulate a tailor-made biosecurity plan, and to monitor its implementation; biomarkers could bring insight into the outcomes of biosecurity. Moreover, the description of four farm biosecurity profiles in the present study might orient further investigation in the future on the possible link between biosecurity and lung lesions and scars at slaughter.
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