Bull

VJ Hawk

NTM -10

Herdbook number: DNK 304551 Birthdate: 5 Feb 2017

Breed Jersey

Sire VJ Haley

MGS Topeka

Proven/Genomic Proven

Beta casein A2A2

Kappa casein BB

Polled Horned

aAa 165

Link to NAV Bull Data

NTM guide

Production & Efficiency

Trait Index 80 100 120
Production 102
Milk kg 102
Fat, kg 98
Fat, % 96
Protein kg 106
Protein % 103
Persistency 85
Growth 113
Daily carcass gain 118
Carcass conformation score 108
Saved feed 113
Maintenance efficiency 95

NAV proof run date: 06-01-2026 Reliability 99 % Number of daughters: 1483

Expected Progeny Difference

Trait Index Bull effect Average
Milk kg, 305 days 102 57.3 7758
Fat kg, 305 days 98 -2.1 462
Fat %, 305 days 96 -0.10 6.0
Protein kg, 305 days 106 5.1 337
Protein %, 305 days 103 0.03 4.4

NAV proof run date: 06-01-2026 Reliability 99 % Number of daughters: 1483

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 71
Interval from calving to first insemination (cows) 88
Interval from first to last insemination (heifers) 88
Interval from first to last insemination (cows) 70
Number of inseminations (heifers) 89
Number of inseminations (cows) 72
Calving sire 110
Calving maternal 88
Udder health 94
General health 87
Longevity 90
Hoof health 63
Sole Ulcer 62
Sole Hemorrhage 84
Heel Horn Erosion 90
Digital dermatitis + Interdigital Dermatitis 85
Verrucose dermatitis + Interdigital Hyperplasia 77
Double sole + White line separation 63
Cork screw claw 88
Youngstock survival 104

NAV proof run date: 06-01-2026 Reliability 98 % Number of daughters: 1230

Trait Index 80 100 120
Milkability 118
Temperament 99

NAV proof run date: 06-01-2026 Reliability 92 % Number of daughters: 611

Trait Index 80 100 120
Frame 111
Stature 108 Short Tall
Body depth 107 Shallow Deep
Chest width 97 Narrow Wide
Rib structure 120 Coarse Angular
Top line 118 Weak Strong
Rump width 115 Narrow pins Wide pins
Rump angle 111 High pins Low pins
Feet & legs 81
Rear legs, side view 100 Straight Sickled
Rear legs, back rear view 96 Toes out Parallel, bow-legged
Foot angle 90 Low Steep
Bone quality 86 Coarse Fine and thin
Hock quality 76 Filled Dry
Udder 111
Fore udder attachment 106 Loose Strong
Rear udder height 107 Low High
Rear udder width 115 Narrow Wide
Udder support 99 Weak Strong
Udder depth 108 Deep High
Udder balance 104 Deep rear udder Deep front udder
Teat length 106 Short Long
Teat thickness 117 Thin Thick
Teat placement (front) 112 Wide Close
Teat placement (back) 110 Wide Close

NAV proof run date: 06-01-2026 Reliability 92 % Number of daughters: 611

Name Scientific name Symptoms Code Result
JH1 Jersey Haplotype 1 (JH1F = Not carrier, JH1C = Single carrier, JH1S = Double carrier) JH1 is an autosomal Read more (JH1F = Not carrier, JH1C = Single carrier, JH1S = Double carrier) JH1 is an autosomal recessively inherited defect. The disorder was identified in the North American and the Nordic Jersey populations, however the frequency was somewhat lower in the Nordic population. JH1 primarily causes early embryonic death (spontaneous abortion), within the first 60 days of gestation. The key ancestor is believed to be Observer Chocolate Soldier (US 596832). https://omia.org/OMIA001697/9913/ JH1F Free

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