Data Quality Index (DQI)- What is it and Why is it Important?

Data Quality Index (DQI)- What is it and Why is it Important?

DQI – What is it?

The Data Quality Index (DQI) is simply the quantity and how good of quality the data is when you are uploading to the Sheep Ireland database over a given year. The DQI reflects three aspects of your data recording such as timeliness, completeness and quality of recording.

DQI – Why is it Important?

Data needs to be recorded on the database in a prompt manner to minimize significant movements in the €urostar’s of animals later in the season, making their evaluations more accurate. DQI illustrates how engaged breeders are in the genetic evaluations and the €urostar system as a whole. Purchasing animals from a breeder with a high DQI reassures buyers that the €urostars generated for this animal are accurate as the breeder has met Sheep Ireland’s desired data required for accurate evaluations.


A common question from breeders is “what has changed between today and 1 week ago? I have not inputted information on a particular ram? Why has he jumped in his €urostars?”. The answer to this question is; if this ram was shared by several breeders, one breeder may input data straight away and giving as much details as possible (giving them a high DQI -) where another breeder may not input data until one month after the event occurred and with very little detail (retrieving low a DQI). This then affects the €urostars of that particular ram, as a flood of in information is processed in the genetic evaluation – this may cause the €urostars to increase or decrease or in some cases the €urostars may stay the same.

To find out information on what improvements have been made to the DQI in 2020 please click here for details

Please see below video of Sheep Ireland’s Dr Alan Bohan explaining important questions and improvements made to the DQI