A high-producing dairy cow in early lactation is most predisposed to ketosis because of:
Correct answer: D. Negative energy balance
- A. Positive energy balance
- B. Reduced rumen microbial activity alone
- C. Excessive phosphorus intake
- D. Negative energy balance
Explanation
Early lactation often creates negative energy balance because milk production demands exceed feed energy intake. Body fat is mobilized, and excessive ketone production can lead to ketosis.
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About Animal Nutrition and Feeding
Covers carbohydrates, proteins, lipids, minerals, vitamins and water, along with digestion, absorption and energy metabolism in domestic animals. Questions involve feed evaluation, nutrient requirements, ration formulation, forage and concentrate feeds, deficiency disorders, and the differences between ruminant and monogastric nutrition.
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