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Stayability EPD is a Expected Progeny Difference that predicts the probability that a bull's daughters will remain productive in the herd until at least six years of age. It is expressed as a percentage, with a higher value indicating that a greater proportion of the daughters are expected to be productive for longer, which is more desirable. Stayability incorporates factors like fertility, udder quality, and structural correctness, and is economically important because it helps recoup the development costs of a cow.
What Stayability EPD measures
Longevity:
It is a measure of a female's ability to stay in the herd for a longer period.
Probability:
It predicts the percentage of a bull's daughters that will still be in production at six years of age.
Holistic trait:
It is an all-encompassing trait that is influenced by a combination of factors, including reproductive efficiency, structural soundness, and "easy-keeping" ability.
How to interpret Stayability EPD
Higher is better:
A higher Stayability EPD indicates a higher percentage of daughters are expected to stay in the herd longer.
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Stayability EPD
