5 Written questions
5 Matching questions
- Selection Intensity
- Accurate Measurement
- Rate of Genetic Change
- Truncation Selection
- Characteristics of Heritability
- a Selection based on performance above a certain level.
- b Response due to selection
- c -influences resemblance among relatives
-influences accuracy of selection and rate of genetic change
- d Strictness of selection criteria.
- e Reduce potential measurement error, use most precise measurement as possible.
5 Multiple choice questions
- Measure of the strength of the relationship between P and BV for a trait in a population.
- Grouping animals that experience similar environmental effects.
- Time required to replace on generation with the next generation. Shorter interval = faster rate of genetic change.
- Variability of BV for a trait in the population. The greater the genetic variation, the greater the difference between superior and inferior animals.
- Rate at which selected individuals replace existing parents in the population.
5 True/False questions
Repeated Traits → Traits for which individual animals have multiple performance records. (milk production, calf weaning weight)
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.
Permanent Environmental Effect → Nutrition, track conditions, illnesses
Tandem Selection → Selection based on performance above a certain level.