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New proofs USA
New proofs USA, August 2019
In the USA the Council on Dairy Cattle Breeders, the CDCB, has changed the calculation of the DPR proofs already in April. The reason for this adjustment is a larger-than-expected variation in CDCB fertility traits in April last year. The influence of the changed calculation of proofs was already visible in April, but has even more impact in the August proof run for many bulls. In average DPR decreased with 1.1 point, TPI with 60 points and Net Merit with 20 points.
Proven sires
The new number 1 TPI proven sires is called now AOT Silver Helix, a Seagull-Bay Silver son out of the Cookiecutter Halo family. S-S-I Montross Duke, the number 6 of last run, ranks now 2nd. EDG Rubicon maintains on 3rd position, while Melarry Josuper Frazzled debuts on 4th. The rankleader of April, Mr MrCut Dante 1407, ranks seventh, with 300 extra milking daughters. Also Mr Mogul Delta and Uecker Supersire Josuper are, with resp. 8.000 and 11.000 daughters, still in the top 10 TPI. Endco Apprentice RDC (Kingboy x Supersire) is the highest red carrier sire and claims the 24th spot.
Genomic sires
On the list with high genomic young sires over 8 months of age Peak AltaZazzle (Marius x AltaTopshot) is leading the list with 2977 gTPI. Other interesting young sires which will be used for flushing the next 4 months are Denovo Prince, Silverridge V Einstein, Bomaz Fastball, Mr Dynasty Nashville and Delicious H-Noon Tampa.