5 Written questions
5 Matching questions
- Selection Index
- Generation Interval
- Trait Ratios
- Selection Intensity
- a Measure of the strength of the relationship between repeated records for a trait in a population.
- b Time required to replace on generation with the next generation. Shorter interval = faster rate of genetic change.
- c Calculate a combined "breeding value" based on several traits.
- d Ratio of individual performance compared to contemporary group mean.
- e Strictness of selection criteria.
5 Multiple choice questions
- Rate at which selected individuals replace existing parents in the population.
- Training, permanent injury, developmental programming.
- Genetic value as a parent. Indication of potential to contribute to offspring.
- performance potential for a repeated trait in an individual.
- Multiple trait selection reduces selection intensity compared to selection for a single trait.
5 True/False questions
Independent Culling Levels → Set a minimum performance level for each trait being considered. Cull any animal that does not meet the standard for every trait.
Truncation Selection → Selection based on performance above a certain level.
Environmental Uniformity → Manage animals to keep environmental effects as similar as possible across the population.
BLUP Models → Ratio of individual performance compared to contemporary group mean.
Tandem Selection → Selection based on performance above a certain level.