Genomic Bulls Live Up Fully to Expectations

Genomic Bulls Live Up Fully to Expectations Once Daughters Start Milking

Thanks to continuously improving breeding value estimation, the reliability of genomic
breeding values for bulls has increased significantly in recent years. As a result, the
breeding values of daughter-proven bulls now bring few surprises. Genomic bulls are
fully meeting expectations. This index run once again provides proof with the daughter
debuts of bulls such as Delta Borax and Delta Appetizer, and the increasing reliability
of, among others, Delta Emoji P and the Delta brothers Dolmen and Flagstone. This
promises a lot for the youngest generation of genomic bulls, which shows an
unprecedented high level.

Delta Borax: a class apart as a proven sire

As a young genomic bull, the red-and-white Delta Borax (Freestyle x Jakarta) already stood
out as a class apart. What this efficiency top performer promised then, he now fully delivers
through the performance of his daughters. With 339 NVI, he is the absolute number one
among daughter-proven bulls. His first daughter-based breeding value profile is almost
identical to his genomic profile.

Borax daughters excel in efficiently converting feed into kilograms of fat and protein, while
maintaining daughter fertility. The Freestyle son transmits nearly 1,000 days of longevity, 114
udder health, and strong functional conformation, including 107 for feet and legs.
Internationally, Borax already impressed with his genomic values, and he is now fulfilling those

promises abroad as well. In Germany, for example, he is the highest daughter-proven red-and-
white bull with 146 RZG.

Delta Emoji P (Eloy x Handy P) also received his first breeding value based on daughter
performance. The Eloy son delivers what he promised as a genomic bull: a good volume of
milk (almost 900 kg), strong component percentages (+0.36% fat and +0.10% protein), solid
daughter fertility (106), and strong feet and legs (108).

Spotlight on farmer-friendly cows

Delta Firestone (Eloy x Faithful) also shows a strong first daughter proof. Although he is no
longer available, he already has a very interesting son in the lineup: Lowlands Solaris
(Firestone x Listrotto). Bred by André Frijters from Waalre, Solaris highlights problem-free,
farmer-friendly cows. This FeedExcel bull combines over 800 kg of production with +0.16% fat
and +0.15% protein, along with high longevity, good health traits, and strong functional
conformation.

Five absolute red-and-white top bulls

The national ranking of red-and-white genomic bulls is now led by five absolute CRV top bulls,
four of which are polled. The new number one is Delta Bloss (Statement x Flagstone). He
shows an all-round transmission at an exceptionally high level, with over 1,400 kg of milk,
+0.30% fat and +0.24% protein, combined with 110 feed efficiency and +10% CRV Health.
This is supported by traits such as 105 daughter fertility, 113 udder health, and 112 hoof
health. The Statement rf son also scores 108 for feet and legs.
With nearly 2,500 kg of milk, more than 200 kg of fat and protein, and €740 Inet, Delta

Richman PP (Universe P x Warren P) is the highest production transmitter among the red-
and-white top bulls. His daughters will require relatively little feed for this level of production

(feed efficiency 112). The homozygous polled Universe P son also transmits nearly 1,000 days
of longevity, 113 udder health, and 109 hoof health.
In terms of longevity, Delta Modiwood P (Blue Zone P rf x Warren P rf) surpasses even
Richman PP with more than 1,100 days and shows an exceptionally high level for hoof health
(117).
These three new top bulls are already available, along with Delta Tadej P (Bulldozer P x Eloy
rf), a true “high-component” bull with +0.74% fat and +0.25% protein and

excellent conformation transmission (110 overall type and 111 feet and legs).

Proven black-and-white top bulls for feet and legs

The black-and-white efficiency top bull Delta Dolmen (Topstone x Relevant) now has 731
daughters in his proof, many of which have already calved twice. The Topstone son increased
another 20 NVI points and remains among the top black-and-white bulls with daughters in the
Netherlands and Flanders. His full brother Delta Flagstone (Topstone x Relevant) (nearly
1,400 daughters) also improved further.

Delta Dolmen scores 107 for feet and legs, making him one of only eight bulls in the top 100
daughter-proven black-and-white bulls with a score of 105 or higher. Coincidentally or not, all
eight bulls are products of CRV’s breeding program.

The absolute top bull for feet and legs remains the still popular Delta Eloy rf (Jacuzzi x Finder)
with a score of 112. Delta Appetizer rf (Amuse x Jacuzzi) received his first daughter-based
proof and is also a top bull for feet and legs with a score of 110.

Grandsons excel in feet and legs and hoof health

Although Appetizer is currently not available, he already has a grandson in the lineup: Delta
Standout rf (Statement rf x Appetizer rf). He transmits over 2,200 kg of milk with +0.15%
protein and combines this with 104 daughter fertility. He also excels in udder health (108) and
hoof health (109), and like his grandsire, he scores 110 for feet and legs.

CRV also offers a strong grandson of the still popular Delta Fast Lane (Remington x Lustrum):
Delta Roadtrip (Statement rf x Fast Lane). He transmits more than 2,500 kg of milk, €681
Inet, and 109 feed efficiency, combined with 103 daughter fertility. He also offers nearly 900
days of longevity, supported by 109 udder health, 112 hoof health, and 112 feet and legs.

Delta Flexor (Activator x Taskforce P) is the highest black-and-white conformation bull with a
total score of 115 and is now freely available. He also scores 115 for feet and legs and 112 for
hoof health, while transmitting over 1,500 kg of milk with +0.10% fat and +0.10% protein.

Polled genetics reaching a higher level

Following the red-and-white breeding program, the polled gene is also gaining importance in
black-and-white breeding. Delta Time Jump P (Universe P rf x Sunrise) is an interesting new
all-round sire with over 400 NVI and nearly 2,000 kg of milk. He scores positively for daughter
fertility, along with 112 udder health and 109 hoof health. His total conformation score is 106,
including 107 for feet and legs.

The homozygous polled Delta Tiramisu PP (Primetime PP x Fair Play P) shows an
exceptionally high level. He transmits around 800 kg of high-component milk, 741 days of
longevity, 114 udder health, and 109 hoof health, while improving conformation (108 total and
108 feet and legs).

New American efficiency leaders

With 1,125 NM$ and 3,494 TPI, the new bull Pen-Col Grandprize (Makeover x Sheepster) is
the number one in CRV’s American offering. He scores very high for CRV Efficiency (+27%)
and transmits over 2,000 lbs of milk with +0.19% fat and +0.04% protein, combined with very
high feed efficiency (116). He is also an excellent choice for robotic milking systems (robot
index 114, milking speed 107) and transmits medium stature with wide, high-attached rear
udders.

Also new is Peak Multiverse (Inspire x Woodside), a FeedExcel bull combining efficient
production of fat and protein with longevity and health. He transmits over 1,000 lbs of milk with
+0.24% fat and +0.09% protein and 111 feed efficiency. He scores low for somatic cell count
(2.77), high for fertility traits, and transmits long productive life (4.6 PL). His daughters will be
strong cows with open frames and wide, slightly sloping rumps. Multiverse comes from the
Oman-Mirror family, just like Peak Prizepick, Peak Fugleman, and Peak Motorhead.

Genosource Moti (Hobbs x Thorson) is another efficiency leader with +27% CRV Efficiency
and 116 feed efficiency. He transmits 1,317 lbs of milk with +0.24% fat and +0.02% protein,
and his daughters will be smaller than average. With +6% CRV Health, he is also among the
top bulls for health traits, including 107 daughter fertility and 108 udder health. Moti comes out
at 1,046 NM$ and 3,289 TPI.

Tyrol improves with additional daughter data

Aurora Tyrol (Parfect x Eisaku) received his first daughter proof in December. With additional
data, he now rises to 3,237 TPI and 536 NM$. He improved in milk yield (now 950 lbs) while
maintaining positive components. He is a strong conformation sire (1.57 PTAT), with improved
feet and legs (1.28), and can correct short teats while increasing milking speed. Tyrol
daughters are fertile (105), with positive scores for DPR, CCR, and HCR, and show low
susceptibility to ketosis (104).

CRV Jersey excels in udders

In the Jersey breed offering, three high udder sires stand out. River Valley Crackerjack
(Chief x Milton) combines high milk production (1,128 lbs) with very good udders. He transmits
firmly attached, high rear udders. His Jersey Udder Index (JUI) therefore comes out at 18.94.

Crackerjack also improves udder health with a SCC of 2.95 and increases longevity with a
breeding value of 1.8 PL. His overall type score comes out at 1.20.

Also, JX Forest Glen Heart (Chatham x Thrasher) is an excellent udder sire with a JUI of
20.66. With a balanced breeding value profile, he scores a very high 170 JPI. He transmits
879 lbs of milk with flat components, 2.92 SCC, and 3.8 PL.

One level higher than Heart is his full brother JX Forest Glen Hearth (Chatham x Thrasher).
With a JPI of 177, he is now the highest bull in the offering. With +10% CRV Health, he is also
a top scorer for health traits. Hearth scores 2.78 SCC, 1.0 DPR, and 4.9 PL. In addition, he
transmits high milk production of 1,421 lbs and improves udders with a JUI of 16.44.

Breeding values decreased due to base adjustment

The breeding values of all bulls have decreased in this index run due to the annual base
adjustment. This adjustment is the same for all bulls and therefore has no effect on the
ranking.

The increases and decreases shown in the publications are based on a comparison with a
shadow run, in which the base adjustment has already been applied to the December figures.

These differences therefore reflect the actual changes in breeding values.

In addition, Cooperative CRV has implemented several improvements in the breeding value
estimation, resulting in slightly more variation compared to December. However, this will lead
to more stable breeding values going forward.