
Genetics
Genetics
What sets us apart from other breeds is the use of hybrid vigour, and the strength of our database to make breeding decisions.
Hybrid vigour has a large impact on beef cattle productivity. Research from the USDA demonstrates an 8% improvement in weaning weight when a purebred cow is mated to a bull of a different breed. Their research also showed that crossbred cows are far more productive than purebred cows. The benefits come in multiple areas including more milk production, better body condition, better fertility, and a longer productive lifetime. In total, crossbred cows weaned 23% more weight than purebred cows.
The quantity and quality of data we have collected about Stabiliser® traits have enabled us to breed better performing, more efficient and profitable animals. This is something we are constantly refining as we move closer to our goal of creating the perfect suckler herd.
The data also enables us to accurately predict the development of specific traits in individual animals, giving farmers far more control over the management of their herd, making it easier to deliver the desired results.
We calculate this by assigning Estimated Breed Values (EBV's) to our cattle, which predict how particular traits will be represented in their offspring.
EBV’s explained
Stabiliser® cattle are performance recorded, the data can be viewed in ABRI. To find out more, click here ABRI.
Estimated Breeding Values (EBV's) provide an accurate forecast for the development of a specific trait in an individual animal. The forecast is based on performance data collected on the known relatives of the animal, and the degree to which the trait being analysed is inherited from one generation to the next.
EBV's are expressed in the same units as the recorded trait. For example, an EBV for DLWG would be expressed in kgs.
EBV's are easy to interpret, for example:
If a bull has an EBV of +40kg for yearling weight, it is estimated that his offspring have the potential to be 20kg heavier as a yearling than those from a bull with an EBV of 0.
The figure is set at 20 rather than 40 because the bull only passes on half of its genes onto its calves, therefore the value of the EBV must be halved to estimate the average genetic advantage it will pass to its offspring.
What is a Breeding Index?
Once EBV's have been calculated, they can also be combined to create selection indexes to meet wider breeding objectives and economic benefits.
The EBV's used in the indexes include:
£Finisher Index
The economic value of an animal in terms of the financial merit of its offspring from weaning to slaughter.
£Weaning Index
The economic value of financial merit of its offspring from birth to weaning.
£Profit INDEX
The economic value of comparing animals against each other based on relative differences in profitability.
