5 Written questions
5 Matching questions
- Replacement Rate
- Repeated Traits
- Producing Ability
- Truncation Selection
- a Traits for which individual animals have multiple performance records. (milk production, calf weaning weight)
- b Rate at which selected individuals replace existing parents in the population.
- c Indicator of the expected change in one trait relative to change in another trait in a population.
- d Selection based on performance above a certain level.
- e performance potential for a repeated trait in an individual.
5 Multiple choice questions
- Reduce potential measurement error, use most precise measurement as possible.
- Multiple trait selection reduces selection intensity compared to selection for a single trait.
- Lists of genetic predictions, accuracy values, and other information for sires within a breed.
- Grouping animals that experience similar environmental effects.
- Variability of BV for a trait in the population. The greater the genetic variation, the greater the difference between superior and inferior animals.
5 True/False questions
Trait Ratios → Ratio of individual performance compared to contemporary group mean.
Correlation → Calculated using covariance, a measure of how two traits or values vary together in a population.
Temporary Environmental Effect → Nutrition, track conditions, illnesses
Tandem Selection → Select for one trait at a time. After reaching the target for the first trait begin selecting for the next trait.
Generation Interval → Calculate a combined "breeding value" based on several traits.