Which change is commonly expected during the normal lactation curve of a dairy cow?
Correct answer: D. Milk yield rises after calving and then gradually declines
- A. Milk yield peaks immediately before calving
- B. Milk yield falls sharply during the first week in every cow
- C. Milk yield remains constant until the next calving
- D. Milk yield rises after calving and then gradually declines
Explanation
Milk production generally increases after calving, reaches a peak in early lactation, and then declines gradually. The exact peak and rate of decline vary with breed, nutrition, health, and management.
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