VH Byron - DNK 258926 - VikingHolstein

Production & Efficiency

Trait Index 80 100 120
Production 99
Milk kg 109
Fat, kg 97
Fat, % 90
Protein kg 104
Protein % 90
Persistency 116
Growth 94
Daily carcass gain 86
Carcass conformation score 103
Saved feed 101
Maintenance efficiency 115

NAV proof run date: 02-12-2025 Reliability 99 % Number of daughters: 3582

Expected Progeny Difference

Trait Index Bull effect Average
Milk kg, 305 days 109 295.3 11633
Fat kg, 305 days 97 -3.7 477
Fat %, 305 days 90 -0.16 4.2
Protein kg, 305 days 104 4.0 409
Protein %, 305 days 90 -0.07 3.5

NAV proof run date: 02-12-2025 Reliability 99 % Number of daughters: 3582

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 88
Interval from calving to first insemination (cows) 96
Interval from first to last insemination (heifers) 62
Interval from first to last insemination (cows) 92
Number of inseminations (heifers) 70
Number of inseminations (cows) 89
Calving sire 103
Calving maternal 101
Udder health 103
General health 96
Longevity 97
Hoof health 91
Sole Ulcer 95
Sole Hemorrhage 98
Heel Horn Erosion 94
Digital dermatitis + Interdigital Dermatitis 78
Verrucose dermatitis + Interdigital Hyperplasia 98
Double sole + White line separation 102
Cork screw claw 78
Youngstock survival 107

NAV proof run date: 02-12-2025 Reliability 99 % Number of daughters: 3645

Functional

Trait Index 80 100 120
Milkability 119
Temperament 97

NAV proof run date: 02-12-2025 Reliability 97 % Number of daughters: 1418

Conformation

Trait Index 80 100 120
Frame 88
Stature 82 Short Tall
Body depth 95 Shallow Deep
Chest width 84 Narrow Wide
Rib structure 100 Coarse Angular
Top line 82 Weak Strong
Rump width 108 Narrow pins Wide pins
Rump angle 84 High pins Low pins
Feet & legs 98
Rear legs, side view 130 Straight Sickled
Rear legs, back rear view 96 Toes out Parallel, bow-legged
Foot angle 95 Low Steep
Bone quality 103 Coarse Fine and thin
Hock quality 110 Filled Dry
Udder 89
Fore udder attachment 92 Loose Strong
Rear udder height 86 Low High
Rear udder width 86 Narrow Wide
Udder support 104 Weak Strong
Udder depth 95 Deep High
Udder balance 105 Deep rear udder Deep front udder
Teat length 90 Short Long
Teat thickness 92 Thin Thick
Teat placement (front) 105 Wide Close
Teat placement (back) 100 Wide Close

NAV proof run date: 02-12-2025 Reliability 97 % Number of daughters: 1418

Monogenic

Name Scientific name Symptoms Code Result
BLAD Bovine Leukocyte Adhesion Deficiency (BLF = Not carrier, BLC = Single carrier, BLS = Double carrier) BLAD is an autosomal Read more (BLF = Not carrier, BLC = Single carrier, BLS = Double carrier) BLAD is an autosomal recessively inherited defect in the Holstein population. It is characterized by recurrent bacterial infections, delayed wound healing and stunted growth. Calves with BLAD are more susceptible to infections and their lifespan varies, many die shortly after birth. Osborndale Ivanhoe (US 1189870) has been identified as the key ancestor of the disorder. Several widely used sires after Osborndale, eg. Penstate Ivanhoe Star (US 1441440) and Carlin-M Ivanhoe Bell (US 1667366) are carriers of BLAD. https://omia.org/OMIA000595/9913/ BLF Free
HH1 Holstein Haplotype 1 (HH1F = Not carrier, HH1C = Single carrier, HH1S = Double carrier) HH1 is an autosomal Read more (HH1F = Not carrier, HH1C = Single carrier, HH1S = Double carrier) HH1 is an autosomal recessively inherited defect in the Holstein population. The disorder was identified in the North American Holstein population and primarily causes early embryonic death (spontaneous abortion), but abortion can occur throughout the gestation. The key ancestor is believed to be Pawnee Farm Arlinda Chief (US1427381). https://omia.org/OMIA000001/9913/ HH1F Free
HH3 Holstein Haplotype 3 (HH3F = Not carrier, HH3C = Single carrier, HH3S = Double carrier) HH3 is an autosomal Read more (HH3F = Not carrier, HH3C = Single carrier, HH3S = Double carrier) HH3 is an autosomal recessively inherited defect in the Holstein population. The disorder has been identified in the North American and the Nordic Holstein population, however the frequency was somewhat lower in the Nordic population. HH3 primarily causes early embryonic death (spontaneous abortion), within the first 60 days of gestation. The key ancestors are believed to be Glendell Arlinda Chief (US 1556373) and Gray View Skyliner (US 1244845). https://omia.org/OMIA001824/9913/ HH3C Carrier
HH4 Holstein Haplotype 4 (HH4F = Not carrier, HH4C = Single carrier, HH4S = Double carrier) HH4 is an autosomal Read more (HH4F = Not carrier, HH4C = Single carrier, HH4S = Double carrier) HH4 is an autosomal recessively inherited defect in the Holstein population. The disorder was identified in the French Holstein population and causes early embryonic death (spontaneous abortion). For animals that are a heterozygous for the gene, a reduction in fertility is seen. The effect is more pronounced in heifers than cows. The key ancestor is believed to be Besne Buck (FRA 4486041658). https://omia.org/OMIA001826/9913/ HH4F Free
RP1 Progressive retinal degeneration (RP1F = Not carrier, RP1C = Single carrier, RP1S = Double carrier) Progressive retinal degeneration is Read more (RP1F = Not carrier, RP1C = Single carrier, RP1S = Double carrier) Progressive retinal degeneration is an autosomal recessively inherited defect. In the French Normande population, an association between homozygotic carrier animals of the RP1 gene and progressive blindness has been demonstrated. Blindness is due to a progressive degeneration of the photoreceptors. The RP1 mutation segregates within many cattle populations and is prevalent in e.g. the Finncattle population. For other breeds than Normande the phenotypic effect of the mutation is unclear. https://omia.org/OMIA000866/9913/ RP1F Free

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