Description
Samples are taken from the earlobe using the Allflex Tissue Collection Unit (TSU) and then run through a ~60,000 SNP assay designed by AgResearch in New Zealand to map the DNA profile of the individual. The result from the analysis can be used for:
- To establish parentage
- Individual gene tests/gene markers
- Genomic improvement of breeding values
Establishing parentage facilitates breeding work when, for example, you want to be able to use several rams in the same mating group in order to save labour time and reduce the risk of empty ewes after mating. In order to establish parentage, all the potential parents must have been analysed.
Single gene tests/gene markers can be used to identify genes linked to, for example, diseases, disease susceptibility, malformations or production traits for which single and crucial genes have been identified.
Genomically improved breeding values can be produced by linking pedigree and performance information with genetic markers and genetic relationships based on the DNA profile. The main benefit is that the certainty of the breeding value can be increased, which is of great advantage for traits that have low heritability, are expressed late in life, are expressed by only one sex or traits that are difficult to measure. By increasing certainty, breeding progress can be accelerated as better selection of young individuals can be made. In order to use genomically improved breeding values, an entire reference population must be tested and pedigree and performance recorded continuously.