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The Charollais breed is now part of the National Terminal Sire Evaluation. Please follow the link below for current results and literature.

Charollais Connectedness – March 2018

Charollais Premier Sale Report – July 2017

Click the here to read the report from the Premier Sale 2017

Go back to Latest Reports


RamCompare Update – January 2017

Click the link to read the latest RamCompare update for the Charollais breed

Thinking of recording your Charollais sheep?

The new Signet fee structure gives the Charollais breed a great opportunity to get involved in recording, click here to read the latest leaflet from AHDB Beef & Lamb promoting the importance of recording to new breeders.

A New Leaflet to Explain the New Breeding Index for Charollais Sheep

Click on the image below to view the leaflet for more information on the changes to the Breeding Index

WEB Charollais breed index A5_Page_1 less bright

Changes to the Charollais Breeding Evaluation – December 2014

Signet and Charollais Sires members met in October and agreed an approach that would lead to the selection of slightly easier finishing genetics, without detriment to growth or carcase conformation. Details relating to this new index are shown here.


Through the widespread use of performance recording the Charollais breed has made tremendous genetic gains in enhancing the growth and carcase attributes of Charollais sired lambs.

Whilst there are clear benefits in optimising growth rates and muscling, breeders face a greater challenge in selecting breeding stock that will produce the optimum level of finish in commercial lambs.

This optimum varies from farm to farm, depending on their market, feed resources and ewe breed.

Changing breeding indexes

Ten years ago breeders were concerned about breeding lines with very low Fat Depth EBVs and a penalty was introduced to discourage the widespread use of these genetics. This “ATAN penalty” as it is known has been used successfully and breeders are tending to select rams with slightly more fat in their carcase. Genetic trends for fat depth have increased over the last 10 years.

In 2014 Signet was asked to review the breeding index used by the Charollais breed to see if there were other ways the breed could ensure that Charollais sired lambs had the “right” amount of finish at slaughter.

Signet considered various solutions which included modifying the weighting on the Fat Depth EBV, the Fat Weight EBV, the ATAN penalty and limiting increases in mature size.

 The New Index – more fat and more growth

Signet has produced a new index that retains the existing ATAN penalty placed on the leanest breeding lines and simultaneously reduces the emphasis currently applied to controlling the Fat Weight EBV. The positive index weighting already applied to the Fat Depth EBV has also been increased. These changes will all lead to the production of well-muscled, fast growing – but slightly fatter Charollais sheep.

These changes are best demonstrated in the chart below, which shows the relative change arising in each trait.

 Charollais Index Changes

This chart shows the new index is very much a win-win for Charollais breeders. The biggest change observed is an increase in the amount of fat within the carcase and across the loin, but overall muscling is not affected and even faster progress can be now achieved in lamb growth traits. These changes are expected to further increase the commercial value of Charollais sired lambs by performance recorded rams.

 Communicating these changes

Signet explained these proposed index changes to Charollais breeders in a meeting held in October and breeders were unanimous in their support for this change.

A change in the range of index values

A test run has been completed and published on the internet. The ranking of animals is as expected, although the range in index values has decreased slightly. For this reason producers are strongly encouraged not to compared their new indexes with index values produced in the previous run.

Maternal Ability EBV

Signet also took this opportunity to update the methodology used to calculate the Maternal Ability EBV. Breeders wishing to know more about this change can read about it on the Signet website – the end result is a more accurate assessment of an animal’s breeding potential for Maternal Ability; essentially milkiness and maternal care.