Reproductive Periods of Dairy Cow
Match the column:
| TABLE-I (Periods of Dairy Cow) | TABLE-II (Time Duration) |
|---|---|
| 1. Lactation period | (a) 85 days post-parturient |
| 2. Gestation period | (b) 12 months |
| 3. Dry period | (c) 0 days |
| 4. Resting period | (d) 2 months |
| 5. Calving interval | (e) 305 days |
| 6. Service time | (f) 283 days |
- 1-e, 2-f, 3-d, 4-c, 5-b, 6-a — Correct Answer
- 1-f, 2-e, 3-d, 4-c, 5-b, 6-a
- 1-e, 2-f, 3-c, 4-d, 5-b, 6-a
- 1-e, 2-f, 3-d, 4-c, 5-a, 6-b
Explanation:
Correct Answer: 1-e, 2-f, 3-d, 4-c, 5-b, 6-a
Reproductive periods of the dairy cow (Table 11):
- Lactation period → 305 days (10 months) — the standard milk production period.
- Gestation period → 283 days (9 months + 9 days).
- Dry period → 60 days (2 months) — period of rest before next calving; no milking.
- Resting period → 0 days — ideally, there should be no gap between dry period end and next calving.
- Calving interval → 365 days (12 months) — ideal interval between two successive calvings. Calving interval = Lactation period + Dry period.
- Service time → 85 days post-parturient — time after calving when the cow should be bred again.
Important Formula
Calving Interval = Lactation Period (305 days) + Dry Period (60 days) = 365 days.
Why Other Options Are Wrong
- Option B swaps Lactation (305 days) with Gestation (283 days).
- Option C swaps Dry period (2 months) with Resting period (0 days).
- Option D swaps Calving interval (12 months) with Service time (85 days).
📚 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.
