Central Progeny Test
What is the central progeny test?
NZM initiated the fine-wool central progeny test (CPT) in 2013 as part of the NZSTX project. The CPT allows breeders to benchmark fine-wool sheep genetics against other New Zealand and Australian studs using estimated breeding values (EBVs).
Each year, new fine-wool sires are mated across a group of Merino ewes and the performance of each sire's progeny is assessed in a common environment for a wide range of production and management traits. This performance data is added to the MERINO SELECT database managed by Sheep Genetics in Australia, and used to generate EBVs for each ram.
What is unique about this CPT is its contribution to research into the genetics of footrot. Through challenging the progeny at the CPT, we are adding to the footrot breeding value database, generating a breeding value for footrot resistance and establishing the genetic correlations between footrot resistance and other important traits. More information about the footrot breeding value project and the contribution of the CPT can be found here.
Data collected to date
Click on the links below for the latest results for the 2015 CPT sires:
Click on the links below for more information about the 2014 CPT sires:
Click on the links below for more information:
At the CPT Open Day on 14 February 2017, we shared the latest data, including estimated breeding values (EBVs), for the CPT sires.
NZM held an Open Day at the CPT site (Quailburn Station near Omarama) on 25 October 2016.
In this update, Dr Mark Ferguson, talks through the scanning results from the 2013 CPT ewe progeny (who were mated as two-tooths). The scanning data shows how the sires of those ewes have impacted on the reproductive performance of their daughters.