Residual Antibiotics In Marketable Milk In Khartoum State

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Ali,Rasha Ali Omer
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University of Khartoum
Milk spoilage remains a problems in many countries especially those in tropics with absence of preservation practices such as pasteurization . this has tempted milk dealers to use antimicrobial substances to combat the problem of spoilage with consequence health hazards. Khartoum State may not an exception as field observations suggested the use of antibiotics to preserve milk under the high ambient temperature of the day. Therefore the current study has been carried out in Khartoum State to investigate this possibility through culturing a strain of Bacillus subtilles (strain ATTC 6633) of no previously reported exposure to antibiotics in Nutrient Agar media.Wells were punched in the Nutrient Agar. Then, these wells filled with individual milk samples. Two hundred and sixty milk samples were collected randomly from three provinces of Khartoum State. These samples were collected from two different sources, the first source was conducted from 41 farms, the second source was collected from market milk and were collected both from the morning and the evening milking. The result indicated that antimicrobial substances, possibly antibiotics, are widely used to preserve milk sold in Khartoum State.Percentages of 27.1%, 21.2% and 25% of the total milk samples collected from Khartoum, Khartoum North and Omdurman were respectively positive for antimicrobial residues. Further, higher percentage of samples collected from Khartoum markets was positive (30.9%) compared with those collected directly from producer farms (24.3%). Also higher percentage of samples collected in the morning (38.9%) compared with those collected in the evening (16.8%) suggesting an attempt to protect milk from the higher possibility of spoilage due to the high day temperature. The study has therefore recommended measures to combat the practice of adding antimicrobial substances to milk though random sampling and legislating regulations and rules, including penalties, to control the practice. Also milk producers should be encouraged to form cooperatives that should be provided with pasteurization, bottling and distribution facilities. In addition, door to door dispersion of milk should only be restricted to pasteurized and bottled milk.
77 Pages
Residual Antibiotics,Marketable Milk, Khartoum State;food;life;door;body health;farms