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. 2019 Feb 11;7(3):1063-1071.
doi: 10.1002/fsn3.945. eCollection 2019 Mar.

Bacterial content and associated risk factors influencing the quality of bulk tank milk collected from dairy cattle farms in Mandalay Region

Ye Wint Naing  1 , Soe Soe Wai  2 , Thant Nyi Lin  2 , Wink Phyo Thu  2 , Lat Lat Htun  3 , Saw Bawm  3 , Tin Tin Myaing  4
Affiliations

Bacterial content and associated risk factors influencing the quality of bulk tank milk collected from dairy cattle farms in Mandalay Region

Ye Wint Naing et al. Food Sci Nutr. .

Abstract

To investigate the bacterial content and risk factors associated with the hygienic quality of raw milk, a cross-sectional study was conducted in four townships of Mandalay Region, Myanmar. From April to October 2017, bulk tank milk samples (n = 233) were collected from 233 dairy cattle farms located in Tada-U, Pyin Oo Lwin, Meiktila, and Patheingyi Townships. From each farm, approximately 100 ml of bulk tank milk was collected and examined for bacterial content. Total bacterial count (TBC) and coliform count (CC) in milk samples were determined using milk agar and violet red bile agar. Of 233 milk samples, 68.2% (159/233) showed TBC higher than 1.0 × 105 cfu/ml, and 78.4% (183/233) showed CC higher than 100 cfu/ml. The mean value of TBC among 233 farms was 2.55 × 107 cfu/ml, ranging from 6.0 × 103 to 3.0 × 109 cfu/ml, whereas the mean value of CC was 1.59 × 105 cfu/ml, ranging from 10 to 8.4 × 106 cfu/ml. TBC tended to increase as CC increased in milk samples. The number of precautionary measures for milking operation, choice of cleaning materials, training experience of the farmers, cleanliness score of milking cows, and CMT scores of milk were significantly associated (p < 0.05) with TBC in bulk tank milk. Similarly, the number of precautionary measures for milking operation, choice of cleaning materials, training experience of the farmers, cleanliness scores of milking cows, CMT scores of milk samples, herd size, and type of milking practice showed significant association (p < 0.05) with CC in bulk tank milk. The effects of these potential risk factors should be minimized, farmers should be trained properly, and technical support should be provided, so that the quality of raw milk produced in Myanmar can be improved.

Keywords: bulk tank milk; coliform count; milking cows; risk factors; total bacterial count.

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Conflict of interest statement

The authors declare that there is no conflict of interest regarding the publication of this article.

Figures

Figure 1
Figure 1
Map of study area
Figure 2
Figure 2
Overall occurrences of total bacterial counts in four townships
Figure 3
Figure 3
Overall occurrences of coliform counts in four townships
Figure 4
Figure 4
Occurrence of total bacterial counts in each township
Figure 5
Figure 5
Occurrence of coliform counts in each township
See this image and copyright information in PMC

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