Sons of Genosource Captain now dominate amongst younger genomic Holstein bulls, securing the primary 4 positions within the rating for Worthwhile Lifetime Index (£PLI).
DG Peace is the brand new primary in AHDB’s £PLI rankings, together with his excellent effectivity – together with Feed Benefit at 281 and Upkeep feed index of -25 – serving to to safe this prime spot.
With a PLI of £908, he strikes up from sixth place because of positive aspects in already excessive manufacturing credentials. His Predicted Transmitting Capacity (PTA) for protein of 41.3kg is breed-leading, which he combines with 1080kg milk and 46.9kg fats.
In second place, with a PLI of £873, is DG Area, one of many highest HealthyCow (HC) index bulls amongst the highest 20 sires.
His HC of £259 means the higher well being he’ll transmit is price, on common, £259 to every of his daughters over their lifetimes, in contrast with a bull whose HC is zero.
He earns this via glorious udder well being (-22 SCC, -2 Mastitis), excessive daughter Fertility Index (9.3) and powerful Calf Survival (2.9).
DG Dillion strikes as much as third place from simply outdoors the highest 20 within the final index run, incomes a PLI of £868. He too transmits good Calf Survival (3), and has a excessive Lameness Benefit (2.7).
With a PLI of £865, Cogent Koepon Rocky is the ultimate of the main 4 Captain sons, additionally demonstrating the excellent effectivity traits for which his sire is famend. His PLI is £865, Upkeep is -24, and he has an EnviroCow index of 4.5.
Peak AltaMorpheus, a son of Winstar Curfew, now ranks fifth, with a PLI of £863 and that includes a PTA fats of +0.21% and a really excessive daughter Lifespan Index of 159 further days. He additionally excels in Fertility Index (FI 10.1), serving to to earn him a HealthyCow of £255.
In sixth place is Denovo 2776 Leeds (PLI £862), the breed-leader for milk yield at an incredible 1256kg, and with a mixed fats and protein of 89.2kg.
Among the best udder well being improvers of the highest 20 bulls is seventh-ranking Wilra SSI Faneca Ebersol (PLI £857), whose SCC of -26 and glorious Lameness Benefit of two.8 stand out amongst his friends.
Progenesis Pineapple ranks eighth, with a PLI of £848 and with excessive protein PTAs of 40.4kg and +0.16%.
One of the best daughter fertility bull within the prime 20 is ninth-ranking Peak AltaOrvar, whose FI of 12.0 helps earn him a PLI of £840.
Rounding off the highest 10 are three bulls, all rating equally at PLI £839. The primary of those is one other Captain son within the form of Pine-Tree GS Cruzer, who additionally affords the perfect Feed Benefit of the breed at £294.
Then, two new entrants for the reason that December launch are Progenesis Disruptor, transmitting the very best weight of fats within the prime 10 at 53.4kg, and Genosource Safety, with the perfect fats share (+0.26) alongside a excessive Fertility Index (10.6).
Locations 13 to fifteen are occupied by three newcomers to the highest 20: Cogent Cartell (PLI £838) who excels in milk yield (1104kg); Hul-Stein Nail (PLI £838) with excessive Lifespan Index (+128 days) and Denovo 20376 Absolute (PLI £826), with excessive fats yields at 55.5kg and +0.31%.
The ultimate new bull to make the highest 20 is Peak AltaBemine (PLI £816), with distinctive udder well being (-31 SCC, -3 Mastitis).
Marco Winters, head of animal genetics for AHDB, says: “Genosource Captain has confirmed himself as a transmitter of excessive and environment friendly milk manufacturing, so it’s no shock to see his sons now dominating the younger sire rating.
“With a spread of maternal bloodlines additionally influencing their genetic potential, these younger bulls have a lot to supply UK producers.
“Different sire strains within the prime 10 provide excellence throughout a spread of traits, giving producers choice choices to deal with quite a lot of wants, whether or not lifting butterfats, enhancing daughter fertility or chopping charges of mastitis.”
