Record Details

Factors affecting the microbiological quality and contamination of farm bulk milk by Staphylococcus aureus in dairy farms in Asella, Ethiopia

CGSpace

View Archive Info
 
 
Field Value
 
Title Factors affecting the microbiological quality and contamination of farm bulk milk by Staphylococcus aureus in dairy farms in Asella, Ethiopia
 
Creator Deddefo, A.
Mamo, G.
Asfaw, M.
Amenu, Kebede
 
Subject dairying
animal products
milk
food safety
microbiology
 
Description Background
The determination of the microbiological quality and safety of raw milk and the associated influencing factors at the farm level is very critical given that the quality or safety of subsequent products that are further produced depends on this. Therefore, this study aimed to determine the microbiological quality and safety of bulk milk and identify associated risk factors, and assess the presence/absence of S. aureus in bulk milk with potential contaminating sources in dairy farms in Asella, Ethiopia.

Results
The geometric means of bacterial counts in farm bulk milk were 5.25 log cfu/ml, 3.1 log cfu/ml and 2.97 log cfu/ml for total bacterial count (TBC), coliform count (CC) and coagulase-positive staphylococci count (CPS), respectively. Of the 50 dairy farms, 66, 88, and 32% had TBC, CC and CPS counts, respectively, that exceeded the standard international limits for raw cow’s milk intended for direct human consumption. TBC tended to increase as CC increased in bulk milk (r = 0.5). In the final regression model, increased TBC, CC and the contamination of farm bulk milk by S. aureus were significantly associated with dirty barns, dirty cows and soiled udder and teats. TBC was higher during the rainy season than during the dry season. The reported practice of washing teats with warm water significantly decreased CC and CPS. The occurrence of S. aureus was significantly (p 
 
Date 2023-03-07
2023-03-10T10:07:06Z
2023-03-10T10:07:06Z
 
Type Journal Article
 
Identifier Deddefo, A., Mamo, G., Asfaw, M. and Amenu, K. 2023. Factors affecting the microbiological quality and contamination of farm bulk milk by Staphylococcus aureus in dairy farms in Asella, Ethiopia. BMC Microbiology 23: 65.
1471-2180
https://hdl.handle.net/10568/129268
https://doi.org/10.1186/s12866-022-02746-0
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 65
 
Publisher Springer Science and Business Media LLC
 
Source BMC Microbiology