The paradox of safe milk supply by small-scale dairy farmers in Sub-Saharan Africa: insights based on current practices in Malawi

Abstract

This research paper aimed to assess milking and milk handling practices among small-scale dairy farmers and to determine the presence of Escherichia coli ( E. coli ) in raw and processed liquid milk in Malawi. A total of 113 dairy farmers were interviewed across three agroecological zones of Malawi. Eighty-seven (87) processed and raw milk samples were collected from selected food stores and dairy farms and tested for E. coli . Ninety-five percent of small-scale dairy farmers had at most 2 milking cows, with a daily average milk production of less than 10 l. Sixty-nine percent cleaned milking utensils using untreated water, and the farmers had no refrigerators. Eighty-eight percent held raw milk for over 6 h at room temperature. E. coli was found to be widely distributed in raw milk (76%) and pasteurized milk (75%), averaging 5.38 ± 1.82 and 2.47 ± 1.02 log cfu ml ^−1 , respectively. In conclusion, this study demonstrates that Malawian small-scale dairy farmers employ poor milking and post-milking practices, which compromise the socioeconomic environment of small-scale dairy farmers.

Keywords

• raw milk
• processed milk
• milking practices
• Escherichia coli
• milk contamination