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Jersey Familiar names amongst the bulls suited for use in spring block calving were published in AHDB Dairy index throughout the year for the increasing numbers of herds which choose the block calving option. Grazing based herds include the Jersey, Danish VJ Tester, who retains his number one position amongst proven sires of all dairy breeds, with a Spring Calving Index (SCI) of £462. The number two sire is the first in a run of Holsteins, in the shape of Progenesis Unicorn. Also taking second place in the previous (December 2020) run, he now has an SCI of £447. Third place is taken by the newcomer, VH Balisto Brixton, whose low maintenance feed costs and low daughter cell counts contribute to his SCI of £439. ....
• The dam of Genosource Captain, the number one young genomic sire Genosource Captain has pushed to the top position in the Profitable Lifetime Index (£PLI), just as he has done for every one of the previous three runs of genetic evaluations in the new Holstein sire choices, published this week by AHDB Dairy. This bull provides a resounding endorsement of the genomic testing system, in particular through his sire, Hurtgenlea Richard Charl, who graduates on to the proven sire list as the new number one bull with milking daughters. Captain himself rises on PLI to £963, transmitting high milk volume (Predicted Transmitting Ability for milk is 1095kg), good milk solids (+0.14% fat and +0.04% protein) and favourable maintenance costs at -16. He also scores -3 on the newly introduced Gestation Length Index (GL), indicating his calves will, on average, have a shorter gestation than the national average by three days. ....
New young sire choices for Holstein breeders 6 April 2021 | Genosource Captain leads the way on Profitable Lifetime Index (£PLI) ranking Brand new Holstein sire choices, UK-bred bulls and the continuity of a long-term leader are all features of the young genomic sire ranking published by AHDB Dairy. Ranked on Profitable Lifetime Index (£PLI), it is Genosource Captain who leads the way, just as he has done for every one of the previous three runs of genetic evaluations. In so doing, this bull provides a resounding endorsement of the genomic testing system, in particular through his sire, Hurtgenlea Richard Charl, who graduates on to the proven sire list as the new number one bull with milking daughters. ....