Aerobic bacterial contaminants of raw milk in selected farms in khartoum

Abstract EN

This study evaluates the bacteriological quality of raw milk, management and hygienic measures taken during handling of milk and suggests measures necessary for producing wholesome milk.

Parameters investigated included isolation and identification of bacteria, detection of antibiotic residues, viable bacterial count and grading of raw milk and observation of management and hygienic measures practiced.

Seventy five samples of raw milk were collected from 33 randomly selected farms in Khartoum State.

The 32 bacterial species isolated included Gram positive and Gram negative pathogenic, opportunistic and spoilage bacteria.

All samples were free from antibiotic residues.

Thirty three (44%) of the samples were positive for brucellosis by the Milk Ring Test.

According to bacterial viable count, 40% of the samples were grade A milk.

None of the samples was positive for acid-fast bacteria.

The contaminations of milk were due to poor management, lack of hygienic measures, poor handling and lack of monitoring body to ensure safety of milk for consumers.

There is a high need to safeguard milk consumers from the risks associated with contaminated milk.