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Sammanfattning

The quality of milk is influenced by the microbial load related to the shelf life of milk and its spoilage. The water buffalo milk supply is a vital asset for the dairy chain in Bangladesh. However, no systematic study has been conducted to assess the quality of water buffalo milk. This cross-sectional study aims to cover this gap by measuring milk quality indicators such as the bulk milk somatic cell count (BMSCC), bacterial counts, and their correlations from farm to collection center along the milk supply chain. One hundred and thirty-two milk samples were collected from three different nodes of the milk supply chain: at the producer level from farms (n = 45), from middlemen (n = 42), and from collection centers (n = 45). Bulk milk somatic cell counts at the farm and different bacterial counts such as the total bacterial count (TBC), total Staphylococcus aureus count (TSA), total non-aureus Staphylococcal count (TNAS), total Enterobacteriaceae count (TEC) along the milk chain were determined. The geometric mean of BMSCC was 4.1 x 105 (95 % CI: 3.4 x 105 - 4.8 x 105) cells/ mL at the farm level. An increase in TBC, TSA, TNAS and TEC were observed in the milk collection center. TBC, TNAS and TEC were significantly increased (P <= 0.01) along the milk supply chain, except TSA. Significant positive correlations for TNAS with TBC (r = 0.55, P <= 0.001) and TNAS with BMSCC (r = 0.35, P <= 0.05) at farm level; TEC with TBC (r = 0.40, P <= 0.05) at middlemen; TNAS with TBC (r = 0.31, P <= 0.05) and TEC with TBC (r = 0.39, P <= 0.05) at the collection centers were observed. The study findings highlight the heavy contamination risk, emphasizing public health threat harboring pathogenic bacteria such as Salmonella, E. coli, S. aureus linked to foodborne illness. A continuous monitoring system is needed to ensure safe and quality milk.

Nyckelord

Bulk milk; Somatic cell; Bacterial counts; Correlation; Quality

Publicerad i

The microbe
2025, volym: 9, artikelnummer: 100605
Utgivare: ELSEVIER

SLU författare

UKÄ forskningsämne

Patobiologi
Husdjursvetenskap

Publikationens identifierare

  • DOI: https://doi.org/10.1016/j.microb.2025.100605

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/144805