For breeding a replacement dairy heifer, which criterion is generally more useful than age alone?
Correct answer: A. Body weight relative to mature size
- A. Body weight relative to mature size
- B. Colour pattern of the hair coat
- C. Length of the tail switch
- D. Amount of horn development
Explanation
Heifers are commonly bred when they reach an appropriate proportion of mature body weight and have adequate reproductive development. Age alone may be misleading because growth rates differ among breeds and farms.
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