Age Determination by Horn Rings in Cattle
If 4 rings are present in horn of cattle, find out the age of the cattle:
- 6 years — Correct Answer
- 4 years
- 5 years
- 7 years
Explanation:
Correct Answer: 6 years
The answer key gives 6 years with the hint: Age of cattle = No. of horn rings + 2. The first horn ring appears at the age of 3 years in cattle.
Calculation
Age = 4 (horn rings) + 2 = 6 years
Important Note from the Notes
The general formula given in Table 33 notes is Age = N + 2, where N = number of horn rings. This method is applicable to cattle/buffalo whose calving interval is 1 year. In cattle, the first horn ring appears at 3 years of age.
Why Other Options Are Wrong
- 4 years: Would mean only using number of rings without adding 2.
- 5 years: Would mean adding only 1 instead of 2.
- 7 years: Would mean adding 3 instead of 2.
📚 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.
