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Influence of attitudes and behavior of milkers on the hygienic and sanitary quality of milk

Author

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  • Oscar David Múnera-Bedoya
  • Laerte D Cassoli
  • Paulo F Machado
  • Mario Fernando Cerón-Muñoz

Abstract

Recognizing how human behaviors affect the milk process can be useful to understand variations in hygienic and sanitary parameters in bulk tank milk. Furthermore, this knowledge could be used to design management programs that guarantee milk quality, favoring the optimization of such processes. Forty-six milkers from the same number of dairy farms in Antioquia province (Colombia) were interviewed to establish the main factors associated to milk quality. Technical knowledge, motivations, and behavior of the personnel and its effect on hygienic and sanitary quality of milk were evaluated. Quality was assessed in terms of colony-forming units (CFU) and somatic cell count (SCC) in bulk tank milk. Two factors from a multivariate mixed data analysis were evaluated. One of those factors explained 9.51% of the total variability, related with in-farm availability and use of tools and the relationships between milker and manager. The other factor, associated with work environment and recognition, explained 6.97% of the total variability. The variables that best explained CFU levels were Knowledge of the udder condition at milking, and Milking type (parlor or pasture). The SCC was associated to knowledge of animal handling, schooling of milkers, milking site, and the groups derived from the cluster analysis by farm. In conclusion, milker attitudes and behaviors can affect CFU and SCC in bulk tank milk.

Suggested Citation

  • Oscar David Múnera-Bedoya & Laerte D Cassoli & Paulo F Machado & Mario Fernando Cerón-Muñoz, 2017. "Influence of attitudes and behavior of milkers on the hygienic and sanitary quality of milk," PLOS ONE, Public Library of Science, vol. 12(9), pages 1-13, September.
    • Handle: RePEc:plo:pone00:0184640
    DOI: 10.1371/journal.pone.0184640
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    References listed on IDEAS

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    1. Ajzen, Icek, 1991. "The theory of planned behavior," Organizational Behavior and Human Decision Processes, Elsevier, vol. 50(2), pages 179-211, December.
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