Longitudinal Study of the Bulk Tank Milk Microbiota Reveals Major Temporal Shifts in Composition
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Le résumé fourni par la source
Introduction of microbial contaminations in the dairy value chain starts at the farm level and the initial microbial composition may severely affect the production of high-quality dairy products. Therefore, understanding the farm-to-farm variation and longitudinal shifts in the composition of the bulk tank milk microbiota is fundamental to increase the quality and reduce the spoilage and waste of milk and dairy products. In this study, we performed a double experiment to study long- and short-term longitudinal shifts in microbial composition using 16S rRNA gene amplicon sequencing. We analyzed milk from 37 farms, that had also been investigated two years earlier, to understand the stability and overall microbial changes over a longer time span. In addition, we sampled bulk tank milk from five farms every 1–2 weeks for up to 7 months to observe short-term changes in microbial composition. We demonstrated that a persistent and farm-specific microbiota is found in bulk tank milk and that changes in composition within the same farm are mostly driven by bacterial genera associated with mastitis (e.g., Staphylococcus and Streptococcus). On a long-term, we detected that major shift in milk microbiota were not correlated with farm settings, such as milking system, number of cows and quality of the milk but other factors, such as weather and feeding, may have had a greater impact on the main shifts in composition of the bulk tank milk microbiota. Our results provide new information regarding the ecology of raw milk microbiota at the farm level.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Longitudinal Study of the Bulk Tank Milk Microbiota Reveals Major Temporal Shifts in Composition
- Date Crossref
- 23/02/2021
- Éditeur
- Frontiers Media SA
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Norwegian University of Life Sciences pays non établi dans la noticeUniversité ou école supérieure
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Tine (Norway) pays non établi dans la noticeEntreprise
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Norwegian Veterinary Institute pays non établi dans la noticeStructure de recherche
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Wageningen University & Research pays non établi dans la noticeUniversité ou école supérieure
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Faculty of Chemistry pays non établi dans la noticeUniversité ou école supérieure
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TINE SA pays non établi dans la noticeEntreprise
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Wageningen University and Research Department of Agrotechnology and Food Science pays non établi dans la noticeUniversité ou école supérieure
Norwegian University of Life Sciences, Tine (Norway) et Norwegian Veterinary Institute, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.