Optimal Exotic Inheritance in Crossbreds
Cross breeding of non-descript cattle with exotic breeds stabilize % exotic inheritance in area of plenty of feed, fodder & adequate milk marketing system-
- 50-62.5%
- 50-75% — Correct Answer
- 50-100%
- 50%
Correct Answer: 50–75%
In areas with abundant feed, fodder and adequate milk marketing, the recommended policy is to stabilize exotic inheritance between 50% and 75% to maximize milk yield while retaining adequate heat tolerance and disease resistance.
Exotic Inheritance by Resource Level
| Resource Level | Recommended % Exotic Inheritance |
|---|---|
| Plenty of feed + good milk marketing (plains) | 50–75% |
| Limited resources, harsh environment (hills/dry areas) | 50% (F1 only; no further backcrossing) |
Generation-wise exotic inheritance in grading up:
F1 = 50% → Backcross to exotic sire → 75% → Further backcross → 87.5% → Eventually near pure exotic (99.6% by 8th generation).
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
