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The percentage of live-born calves in the Netherlands and Flanders from Holstein heifers has increased significantly over the past twenty years, from 81 percent in 2005 to 87 percent for black-and-white and 91 percent for red-and-white. This is evident from calculations by the Animal Evaluation Unit (EU department CRV) based on calving records.

Anyone wanting to envision the daughters of Delta Party P should look at the beautiful dam of this new red-and-white InSire bull. Delta Ryfke P (by Solitair P) was classified as a heifer with 87 points for overall conformation, including the maximum score of 89 for type and udder. She also received a linear trait score of 9 for rump width and rear udder height, and 8 for rib structure and fore udder attachment.

Ten years ago, D’n Driehoek Delta Teuntje was the first “Teuntje” in Beers. Three generations later, Delta Tulip P is one of the standouts. “Tulip doesn’t give up easily, like all the Teuntjes. They’re cows with a ‘no-nonsense, get to work’ attitude,” says Jens Hermanussen.

Nothing less can be expected from the daughters of Delta High Tide PP. With breeding values of 2,240 kg milk, 158 kg fat and protein, and 574 Inet, he is one of the highest red-and-white production sires and the highest homozygous polled. Additionally, this new InSire bull passes on 108 persistence and 109 feed efficiency.

The daughters of Delta Hilltop won’t peak extremely, and they might not perform at their highest as heifers. However, with breeding values of over 1,500 kg of milk, 109 kg of fat, and 109 kg of protein, and a lifespan value of 687 days, they can be expected to produce over 900 kg of fat and protein during their lifetime.

Every dairy farmer knows: good leg structure and healthy claws are fundamental for a herd that achieves high production and longevity without issues. It's no coincidence that CRV's top bulls score highly on these traits. This April proof frequently used bulls from recent years demonstrate this with their daughters, and young bulls set the bar even higher with their genomic breeding values.