A high milk urea nitrogen value in a dairy herd most commonly suggests what problem?
Correct answer: A. Excess dietary protein or poor energy synchronization
- A. Excess dietary protein or poor energy synchronization
- B. Severe dietary calcium deficiency alone
- C. Complete absence of rumen microorganisms
- D. Insufficient access to mineral salt only
Explanation
High milk urea nitrogen commonly reflects excess rumen-degradable protein, inadequate fermentable energy, or poor synchronization between them. It is not a specific indicator of calcium deficiency or absence of rumen microbes.
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