changes witnessed at the top of the Holstein rankings, the other breeds show
continuing stability in the latest proofs, published by DairyCo breeding+ on Tuesday April 7.
The former number
one British Friesian Lakemead Rancher retains
his leading position, further strengthening his lead with a Profitable Lifetime
Index of £159 and showing a small improvement in his lifespan (LS +0.5).
He is followed
in second place by Grietman, ahead of
newcomer Kirkby Emperor in third, who
has the best SCC rating of the top three at -5.
ranking has a new name at the top, this time in Sunset Canyon Maximus. He improves on production and lifespan,
giving him a PLI of £204, one ahead of second placed DJ Hulk who moves up one place since January. Former front-runner Q Impuls can now be found in third
place with a PLI of £201.
change at the top of the Ayrshire rankings with high production sire Brieryside Golden Sand still ranked in
top spot (PLI £215) and Morwick Sand
Ranger still at number two. New into the top three and moving up one place
since January is R Ascona, thanks to
excellent fitness traits of -26 SCC, +0.3 Lifespan and +3.2 Fertility Index.
Sniders Option Aaron climbs into first
place on the GMI (Guernsey Merit Index) rankings, pushing Trotacre Jay Mr Luck into second position. The top three is rounded
of by Tiresford Pedro.
Reminding breeders that comparisons of genetic indexes can not be made
between breeds, Marco Winters, director of DairyCo breeding+ says: “All
breeds are assessed against a different genetic base. This means that
comparisons across breeds can not be made, whether that be a comparison between
Friesians and Holsteins or between Jerseys and Ayrshires, for instance. This is
an important point for breeders to remember, especially for those who are
considering using a variety of breeds in their herds.”
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