Chapter 13 Animal Science

These flashcards cover key vocabulary and concepts from the lecture on genetic change through selection in animal science.

Selection

Choosing which animals will reproduce while preventing others from delivering their genes to offspring.

Selection Differential

The superiority or inferiority of the selected animals compared to the herd average.

Heritability

The quality of a characteristic being transmissible from parent to offspring.

Generation Interval

Average age of parents when offspring are born.

Genetic Change

Change made through selection.

Adjusted Weaning Weight

A formula used to compute the weaning weight adjusted for age of calf and age of dam.

Standard Deviation (SD)

A statistical term that measures the amount of variation or dispersion in a set of values.

Environmental Effects on Genetics

Factors that impact the expression of traits in animals, including known effects like age and unknown effects like weather.

Economic Traits

Traits of livestock that have significant variation and economic importance, such as weaning weight.

Independent Culling Level Selection

A method of selection based on meeting minimum or maximum standards for certain traits.