Reliability of genetic indices explained. What and Why

Published 10 September 15


Reliability indicates how reliable, or accurate, an estimate of genetic merit is, and is published as a percentage in the general range 20% up to 99%.

This factsheet gives some of the background to the technology and helps to provide some answers, such as:

  • How reliable are genetic indexes?
  • Why the need for a reliability figure?
  • What about herd and daughter numbers?
  • What else affects the reliability?
  • Confidence vs. Reliability
  • What about using a team of bulls?