5 Written questions
5 Matching questions
- Truncation Selection
- Characteristics of Repeatability
- Producing Ability
- a performance potential for a repeated trait in an individual.
- b Measure of the strength of the relationship between P and BV for a trait in a population.
- c -not fixed, varies across populations and environments
-used for making culling decisions
- d Selection based on performance above a certain level.
- e Measure of the strength of the relationship between repeated records for a trait in a population.
5 Multiple choice questions
- Important for individual performance
- Genetic value as a parent. Indication of potential to contribute to offspring.
- Set a minimum performance level for each trait being considered. Cull any animal that does not meet the standard for every trait.
- Manage animals to keep environmental effects as similar as possible across the population.
- Rate at which selected individuals replace existing parents in the population.
5 True/False questions
Rate of Genetic Change → Response due to selection
Selection Intensity → Calculate a combined "breeding value" based on several traits.
Temporary Environmental Effect → Training, permanent injury, developmental programming.
Sire Summaries → Ratio of individual performance compared to contemporary group mean.
Repeated Traits → Traits for which individual animals have multiple performance records. (milk production, calf weaning weight)