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THE MILK OF COWS THAT FEED ON GARBAGE (LABEN ALJALALA): TOXICOLOGICAL STUDY (HEAVY METAL RESEARCH) AND MICROBIOLOGICAL  

Milk is a complete, nutritious food rich in protein, fat, carbohydrates and minerals. However, its quality can be deteriorated when the animal receives an abnormal or unbalanced diet.

The aim of this work is to study the hygienic and toxicological quality of ten samples of raw milk taken from cows that feed on household waste in the Rabat region.

The results showed that the lead content of 62.5% of the samples analyzed exceeded the maximum allowable values (0.02 mg/l) to reach 0.44 mg/l. Similarly for the copper content of 62.5% of the samples exceed the standards (0.1 mg/l) it reach 0.414mg/l in some. So for the Chrome content 37.5% of the samples are above the standards (0.06 mg/l) with a maximum value of around 0.34mg/l.

The results of microbiological analyses do not conform to Moroccan standards and this is due to the high load in Total flora, coliforms and fecal streptococcus

This result of contamination by certain heavy metals raises the question about the relationship between a food contaminated by various wastes (industrial, hospital ....) and the quality of milk of cows that feed on this diet

It can be concluded that this milk is contaminated with toxic heavy metals that have the property of accumulating in human cells and can cause serious diseases, so this type of milk is not safe to consume and presents a potential risk to human health.

It is recommended that farmers be informed of the risks of feeding household waste and that they should be made easier to supply alternative food.

These results are in line with the recommendations of the Prophet of Islam, Mohamed (may Allah's salvation and prayer be upon him), reported by Abu Daoud after Ibn Omar: "That the Prophet (may allah's salvation and prayer be upon him) forbade the consumption of meat and milk of cattle and poultry meat that feed on garbage. To clean up their bodies and their milk, they must be retained for some time in isolation."