Ruminant grass tetany (hypomagnesemic tetany) occurs primarily due to which mechanism?
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A
Rapid grass growth in spring produces low-magnesium forage, and ruminants cannot mobilize bone magnesium stores efficiently
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B
Excess dietary calcium blocking magnesium absorption
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C
Renal magnesium wasting caused by high potassium intake
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D
Primary CNS magnesium depletion independent of diet