Why are dairy cows commonly grouped according to production stage in a well managed herd?
Correct answer: D. To provide diets suited to nutrient needs
- A. To keep all cows at one body weight
- B. To eliminate the need for records
- C. To prevent all infectious diseases
- D. To provide diets suited to nutrient needs
Explanation
Early lactation, late lactation, dry cows, and heifers have different nutrient and management requirements. Grouping allows more suitable ration formulation and reduces overfeeding or underfeeding.
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