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In the experiment carried out on 15 lowland black and white cows aged 2—3 years in the 4—5th month of lactation a possibility of measurement a biotransformative activity of the liver (activity of microsomal monooxygenase connected with cytochrome P-450; MMO-P-450) on the basis of antipyrine (phenazone) elimination rate from milk was examined. Antipyrine was applied intravenously at a dose of 15 mg/kg...
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