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Energy supply and urea content of milk



Energy supply and urea content of milk



XXI International Dairy Congress Vol 1, Book 1: 73-74



In a trial with 20 cows, reducing daily energy supply by 2000 StE (equivalent to 7 l milk) for 2 weeks around peak lactation decreased milk protein content from 3.16 to 3.06%, and increased urea concentrations in milk and blood, respectively, from 27.5 and 36.5 to 45.7 and 59.0 mg% (ration protein content 19%) and from 15.9 and 21.7 to 23.4 and 33.9 mg% when ration protein content was 16%.

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