The main objective of this study was to determine the effect of copperdeficiency on some milk constituents of ewes.(Thirty)raw milk samples havebeen collected in the morning and before feeding of the ewes,(10) of themfrom ewes suffering from copper deficiency and the other(20) milk sampleswere collected from healthy ewes .The percentages of fat ,protein ,lactose,chloride, specific gravity, moisture and the pH of milk were determined.The results have shown that copper deficiency have an effect

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... the milkconstituents where all milk samples collected from ewes suffering fromcopper deficiency had significantly (p<0.01) lower percentages of fat(5.70%) ,protein(3.0%), lactose (3.4%)and specific gravity (1.0338) than those collected from healthy ewes that had(7.62%),(4.0%),(4.07%) and (1.0369) respectively.Data revealed that there was a significant (p<0.01) increase in thepercentage of moisture (87%) and non significant (p>0.05) increase in thepercentage of chloride (0.0921%) in the milk samples collected from ewessuffering from copper deficiency than healthy ones that had (83%) and(0.0858%) respectively. In addition to that no changes in the pH valuesbetween all milk samples were noticed