What does EPD stand for?

• A. Enhanced production development
• B. Expected progeny difference
• C. Environmental productivity descriptor
• D. Estimated parental designation

Answer: (B)

The main concept is understanding what EPD means in livestock genetics and how it’s used to predict how future offspring will perform. EPD stands for expected progeny difference. It’s a statistical estimate of how the average progeny of an individual is expected to differ from the population average for a specific trait, based on that animal’s own performance, information from relatives, and pedigree data. This lets breeders compare animals for selection: a positive EPD for a growth or production trait suggests the animal’s progeny are expected to perform above average, while a negative EPD indicates they’re expected to perform below average. EPDs come with accuracy values reflecting confidence in the estimate, which increases with more and better data. The other described terms aren’t used to express this predictive genetic merit.