5 Written Questions
5 Matching Questions
- Repeated Traits
- Permanent Environmental Effect
- Producing Ability
- Environmental Uniformity
- a Manage animals to keep environmental effects as similar as possible across the population.
- b Training, permanent injury, developmental programming.
- c performance potential for a repeated trait in an individual.
- d Traits for which individual animals have multiple performance records. (milk production, calf weaning weight)
- e Calculated using covariance, a measure of how two traits or values vary together in a population.
5 Multiple Choice Questions
- Measure of the strength of the relationship between P and BV for a trait in a population.
- Nutrition, track conditions, illnesses
- Calculate a combined "breeding value" based on several traits.
- Indicator of the expected change in one trait relative to change in another trait in a population.
- Response due to selection
5 True/False Questions
Generation Interval → Time required to replace on generation with the next generation. Shorter interval = faster rate of genetic change.
Genetic Variation → Ratio of individual performance compared to contemporary group mean.
Sire Summaries → Lists of genetic predictions, accuracy values, and other information for sires within a breed.
Characteristics of Repeatability → -not fixed, varies across populations and environments
-used for making culling decisions
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.