Leg structure and claw health lay the foundation for top performances of CRV bulls

Delta Perfect, the most used black-and-white bull of the past fiscal year, received his first daughter-based breeding value this run, based on over 1,100 daughters. Perfect daughters validate the choices of farmers who extensively used this Woody son. With +760 kg milk, +0.28% fat, and +0.18% protein, resulting in €380 Inet, he ranks among the top for production. His daughters are robust heifers that handle production with ease. Breeding values of 109 for feet and legs and 110 for claw health complete the perfect picture.

From the also widely used Delta Fair Play P, the first 835 daughters started milking in recent months. This Woody son exceeded his genomic breeding values for production traits, achieving +1,422 kg milk with +0.03% fat and +0.01% protein, and €411 Inet. With these figures, this FeedExcel bull will be reintroduced to the lineup.

Among young bulls with genomic breeding values, sons of Delta Warren P rf performed well this run. For instance, Delta Boyan's production breeding value increased by €30 to €620 Inet, thanks to a balanced profile with over 1,500 kg milk, +0.34% fat, and +0.14% protein. Available through the Create program, Boyan is also a standout in health traits, with breeding values of 110 for udder health and 111 for claw health.

The homozygous polled Warren son, Jeans Hummer PP, also improved his production breeding value by €28 Inet and transmits, among other traits, 108 total conformation with 107 for feet and legs.

New this index run is Delta Eurostar (Keystone x Powerlift rf). He combines high milk (+1,330 kg) with high components (+0.37% fat and +0.17% protein) and 684 days of longevity. Eurostar transmits a nice balance between less stature (92) and more strength (102). He is also a top performer for feet and legs (112) and claw health (111).

Delta Economy lives up to his name. With 2,272 kg milk and 130 kg fat and protein, he is a high production transmitter, and a breeding value of 108 for feed efficiency indicates that his daughters will require less feed for this production. He is, therefore, a FeedExcel bull. Economy combines this with 102 daughter fertility, 103 ketosis sensitivity, 107 udder health, and 108 claw health, transmitting 685 days of longevity. With pedigree Tavern x Delta Turmeric Red x VH Rozwell, this new economic topper also offers a unique bloodline.

Delta Counter is also a FeedExcel bull and a very high milk transmitter with a breeding value of 2,400 kg milk and 159 kg fat and protein, resulting in €584 Inet. Counter combines this with high feed efficiency (107) and long longevity (657 days). He scores 100 for daughter fertility and, thanks to excellent persistency (112), also 102 for ketosis. Counter improves udders (106) and 104 for teat length. The Steady P son from the Gold-N-Oaks Arabel family scores 147 RZG in Germany.

Double W Hurdler (Warren x Endless) from the Double W Ricky (Ranger) family is another FeedExcel efficiency topper with over 2,000 kg milk, €463 Inet, and 108 feed efficiency. He also scores high on CRV Health with 101 daughter fertility, 107 udder health, and 113 claw health. Hurdler achieves 108 total conformation with 108 for legs and desirable breeding values for rear leg side view (105) and teat length (105).

Among the red-and-white InSire bulls, Hurdler's half-brother Double W Rustic (by Borax) stands out. He transmits over 2,000 kg milk and €508 Inet, along with 681 days of longevity and 108 udder health. Rustic is also a conformation topper with 111 for legs and 113 total type. He also ranks high in Germany with 155 RZG.

Delta High Tide PP is a red-and-white FeedExcel bull with 107 feed efficiency and production over 2,200 kg milk and 154 kg fat and protein, resulting in €560 Inet. The Borax son combines this with 102 daughter fertility and is a top performer for claw health with a breeding value of 113.

The daughter-proven Gywer son, Poppe Freestyle, further increased his high production breeding values this run. He is now noted at 1,865 kg milk and combines this with solid udders (109), high longevity (535 days), good daughter fertility (102), and excellent health traits (104 udder health and 105 claw health). With 140 RZG, Freestyle ranks sixth in Germany.

With now over 6,800 daughters in his breeding value, the homozygous polled Delta Launch PP reaffirms his popularity as a high-component sire (+0.35% fat and +0.17% protein) and an exceptional feet and leg (118) transmitter (with 111 for hoof health).​

April 2025 index run brings great news for CRV’s breeding program in the United States. With now over 300 daughters in his breeding value, Terra-Calory Zuri climbed to 3,348 TPI, making him the number four daughter-proven bull in the ranking. And with 1.37 PTAT, he is by far the best conformation sire among the top five. Zuri transmits 1,105 pounds of milk with +0.23% fat and +0.07% protein, resulting in $844 NM$. He is a FeedExcel bull and improves milking speed (109). Only a limited amount of semen is still available from this new top sire.

Three new FeedExcel bulls came through this run with high genomic breeding values. Peak Mumford combines 609 pounds of milk with +0.36% fat and +0.10% protein (167 pounds of combined fat and protein) and a feed efficiency score of 107. He transmits shallow udders with ideally placed, average-length teats. Mumford improves udder health (109), increases milking speed (105), and scores 3,412 TPI and $899 NM$.

Daughters of Peak Caligula will develop into attractive, dairy-type cows with very economical production. He shows breeding values of 183 pounds fat and protein (1,257 pounds milk, with +0.24% fat and +0.08% protein), $925 NM$, and 107 feed efficiency. Caligula is an A2A2 bull, with milking speed 107 and scores 3,330 TPI.

The third new FeedExcel bull in CRV’s offering is Terra-Linda Indazone. With 2,116 pounds milk, 137 pounds fat and protein, and a very high feed efficiency value of 115, he is an efficiency leader par excellence. In addition, Indazone transmits +2.5 Productive Life. With these traits, he is an absolute top bull for CRV Efficiency, scoring +26%. Indazone achieves 3,162 TPI and $821 NM$. He is A2A2, improves hoof health, and transmits more curve to the legs.

With Peak Toto (Tyrol x Incredible), CRV introduces a new top TPI sire (3,325) with an all-round profile. He transmits 962 pounds of milk with +0.20% fat and +0.08% protein, a feed efficiency of 104, and scores $731 NM$. Toto also shows strong health traits across the board and is very suitable for robotic milking systems. His daughters will become well-developed, strong cows with wide rumps and open rib structure. Toto scores 1.61 PTAT and has a flawless feet and leg composite, with desirable values for teat length and rear leg set.

K-Star-FS Avenger (Phoenix x Gameday) is a new top bull for type, with a PTAT of 2.14. His daughters will develop into strong, dairy-typed cows with wide, high-attached rear udders. Avenger transmits the desirable extra curve in rear legs and longer teats. Additionally, he is also a strong production sire, transmitting 1,441 pounds of milk with +0.09% fat and +0.04% protein. He is A2A2 and scores 3,269 TPI and $600 NM$.

With genomic values of $611 CM$ and 156 JPI, JX SBS Yellowstone is the new absolute top sire in CRV's Jersey lineup. He transmits 869 pounds of milk with +0.06% fat and +0.04% protein. Yellowstone daughters, with their compact conformation and modest stature, will require relatively less feed for this high fat and protein production. And with 3.4 Productive Life, this new top bull also guarantees a long lifespan.

The new genomic bull JX Pine-Tree Beck also scores very high with 147 JPI. With 420 pounds milk, +0.10% fat, and +0.07% protein, he also reaches $325 CM$. Beck is A2A2 for beta-casein and BB for kappa-casein. He improves udders (15.8 JUI) and total type with +0.40, showing a lot of strength (+1.30).

Sandcreeks Lekker PP is, with genomic breeding values of $350 CM$ and 125 JPI, one of the highest homozygous polled bulls of the breed. He transmits extremely high milk production of over 2,000 pounds and combines this with 3.3 Productive Life. Lekker PP carries the aAa code 435.