This December's Australian Breeding Values release is proof of the reliability of genomics, according to Datagene.
Bulls across many breeds have graduated from the genomic ABV rankings across to become proven sires and developed just as their genomics predicted.
DataGene stakeholder relations specialist Peter Thurn said over time there had been a lot more stability in the breeding values of bulls as they transitioned from genomic to proven status but warned the ride could be bumpy in the early stages.
"There are a number of factors in play when a bull's daughters start lactating that can affect the bull's breeding value," he said.
"Sometimes the incorporation of overseas performance data via Interbull can move a bull's proof.
"But what we are seeing over time is an increase in stability as the volume of data increases."
This is good news for farmers as it is further proof of the reliability of genomics, providing them with the reassurance of knowing young sires selected from the Good Bulls Guide will improve the genetic merit of their herd.
DairyBio research has demonstrated that genetics contributes to about a third of on-farm productivity gains, with these gains permanent and cumulative.
Last financial year nearly one million doses of genomic semen was sold to Australian dairy farmers, representing 57 per cent of the dairy semen market.
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Four years ago, genomic semen made up 41pc of this market.
This month's ABV release had many examples of stability in bull rankings.
"In the Holstein breed we see bulls like Jeronimo, Perseus and Fedora settling down with the high daughter-proven ratings reflecting their earlier genomic ratings," Mr Thurn said.
"Other examples are the young Jersey sires from Con and Michelle Glennen's White Star herd, Douggan, Dobson and Publican.
"Some are still on the genomic list while others are recently proven, and they are all adding daughters and continuing to mix it with the best Jersey sires available."
This applied to Douggan in particular, which now led the Jersey Balanced Performance Index.
"We need to remind ourselves that in this high-paced genomic era, bulls get overtaken by new bulls quickly and we need to look at the ABVs not the ranking to truly appreciate the stability of the system."
To see the ABV lists, head to the Datagene website.
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