Increasing Order of Efficiency of Selection Methods
The increasing order of efficiency of the methods of multi-trait selection is:
- Selection index < Independent culling < Tandem selection
- Independent culling < Tandem selection < Selection index
- Tandem selection < Selection index < Independent culling
- Tandem selection < Independent culling < Selection index — Correct Answer
Explanation:
Correct Answer: Tandem selection < Independent culling < Selection index
In increasing order of efficiency: Tandem < Independent culling < Selection index (given by Hazel and Lush, 1942).
Comparison
| Method | Traits | Efficiency | Basis |
|---|---|---|---|
| Tandem selection | One at a time | Least efficient | — |
| Independent culling | Two or more; minimum standard for each | Moderate | Cull if any trait fails standard |
| Selection index | Several simultaneously with weights | Best / Most efficient | Single numerical expression predicts breeding value |
📚 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.
