Sheep

Many breeders have been involved in performance recording and research for more than 50 years. The cumulative and permanent change this creates in the breed, means that over time the improvements made in recorded flocks benefit the whole breed.

Following in the footsteps of the RamCompare project, the Dorset Centurion group have looked at ways to use carcase records in their routine genetic evaluations. So far breeders have collated over four thousand carcase records (a growing dataset) and with support from AHDB/SRUC generated a series of new Estimated Breeding Values (EBVs) for traits of high economic worth

In recent years there has been an increasing number of breeders have had their lambs measured using Signet’s ultrasound scanning service as part of their breeding programmes. It is a great tool to identify sheep with superior muscling, while avoiding those likely to be excessively fat. This is the best way of identifying animals with superior genes for muscling and this data is used to produce Estimated Breeding Values (EBVs).

The report presents evidence to inform decisions related to the development of the genetic improvement infrastructure for the UK sheep and beef sector, in order to improve financial sustainability and reduce environmental impact of the sector, including the current financial benefit of genetic improvement.

During the summer, we launched some new estimated breeding values (EBVs) for sheep farmers. To explain what these were and how useful they could be, we hit the road to talk to farmers about them at a series of workshops.

Farmers attending the workshops heard how careful ram selection can easily lift the value of lambs by £3–£5 a head, which would be worth an extra £1,000 over a ram’s working lifetime.

Assessing a ram’s genetic merit is key when looking to maximise profitability within the flock and accelerate growth from forage

Results from preliminary trials of the new PACs owned by SRUC support research findings from New Zealand, Ireland and other countries: methane emissions from sheep are feasible to measure on-farm using Portable Accumulation Chambers (PAC) under UK conditions and that there is variability between animals in methane emissions recorded by PACs that could potentially be exploited within breeding programmes.

AHDB are delighted to share news of our involvement in “Breed for CH4nge” an industry collaboration that will help the industry to breed sheep with a naturally low carbon footprint. There are a number of exciting elements to the project that align closely to AHDB’s research interests, and the genetic services delivered by Signet. The project will enhance our knowledge of genomics, breeding for parasite resistance and CT scanning, whilst assessing the benefits of using Portable Accumulation Chambers (PAC) to predict methane emissions in grazing sheep.

Performance recording has been used within hill sheep breeding programmes for many years, but recent developments as part of the Hill Ram Scheme in Wales has led to changes in the expression of the index. From June 2023 the index will be expressed in £ as the expected annual return per ewe.

Signet are proud to announce the release of the UK’s first commercially available genomic breeding values for sheep. The release of genomic breeding values is a major first for the UK industry following research lead by Samir Id Lahoucine at SRUC; work was funded as part of the Hybu Cig Cymru (HCC) lead Hill Ram Scheme and has been implemented as part of Farming Connects Welsh Sheep Genetics Programme.