Definition of Calving Index
An average number of days between latest two successive calving dates for all cows in the herd is known as:
- Calving interval
- Generation interval
- Calving index — Correct Answer
- Herd average
Explanation:
Correct Answer: Calving index
Calving index is the average interval between two successive calving dates for ALL cows in the herd (Q92 answer key).
Key Distinctions
- Calving interval: Interval between two successive calvings of a SINGLE animal (individual measure)
- Calving index: Average interval between two successive calvings of the HERD (herd measure)
- Generation interval: Average age of parents when their offspring are born
- Herd average: Average milk production of a herd
Why Other Options Are Wrong
- Calving interval: Refers to individual animal, not the whole herd average.
- Generation interval: Related to age of parents at offspring birth, not calving.
- Herd average: Refers to average milk production, not calving dates.
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Livestock Production and Management. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
