THE EFFECTS OF FEEDING DIFFERENT LEVELS OF CUMINUM CYMINUM L ON MILK YIELD AND COMPOSITION AND SOME BLOOD METABOLITES OF HOLSTEIN DAIRY COWS

An experiment was conducted to determine the effects of feeding cuminum cyminum L(CCL) to lactating dairy cows. In their 35±5 days in milk, 8 Holsteins (4 primiand 4 multi-parous) averaging BW of 660±15 and initial milk production of 47±2 kg were assigned according to parity to a 4×4 change over design with 21 day periods. Cows fed the same TMR except that CCL was included and mixed with TMR at rates of 0, 100, 200 and 300 g/d to Constitute experimental treatments. Adding CCL to lactating cows TMR increased DMI and milk production when compared to control group (p<0.05) with no changes in milk component concentrations. Blood glucose, BHBA, cholesterol and urea were also unaffected by treatments. Overall, Results of the present study showed that supplementing dairy ration by CCL at 200 g/d may be more beneficial for milk production efficiency.