Bull

VJ Choko

NTM -4

Herdbook number: DNK 304568 Birthdate: 30 Apr 2017

Breed Jersey

Sire VJ Lobo

MGS VJ Havdal

Proven/Genomic Proven

Beta casein A2A2

Kappa casein BB

Polled Horned

aAa 426315

Link to NAV Bull Data

NTM guide

Production & Efficiency

Trait Index 80 100 120
Production 106
Milk kg 104
Fat, kg 104
Fat, % 99
Protein kg 106
Protein % 101
Persistency 94
Growth 116
Daily carcass gain 113
Carcass conformation score 114
Saved feed 106
Maintenance efficiency 90

NAV proof run date: 05-05-2026 Reliability 99 % Number of daughters: 2055

Expected Progeny Difference

Trait Index Bull effect Average
Milk kg, 305 days 104 114.6 7828
Fat kg, 305 days 104 4.2 466
Fat %, 305 days 99 -0.03 6.0
Protein kg, 305 days 106 5.1 342
Protein %, 305 days 101 0.01 4.4

NAV proof run date: 05-05-2026 Reliability 99 % Number of daughters: 2055

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 96
Interval from calving to first insemination (cows) 71
Interval from first to last insemination (heifers) 112
Interval from first to last insemination (cows) 90
Number of inseminations (heifers) 116
Number of inseminations (cows) 107
Calving sire 106
Calving maternal 88
Udder health 82
General health 96
Longevity 87
Hoof health 104
Sole Ulcer 106
Sole Hemorrhage 109
Heel Horn Erosion 95
Digital dermatitis + Interdigital Dermatitis 94
Verrucose dermatitis + Interdigital Hyperplasia 114
Double sole + White line separation 108
Cork screw claw 106
Youngstock survival 107

NAV proof run date: 05-05-2026 Reliability 98 % Number of daughters: 1656

Trait Index 80 100 120
Milkability 112
Temperament 98

NAV proof run date: 05-05-2026 Reliability 94 % Number of daughters: 812

Trait Index 80 100 120
Frame 86
Stature 114 Short Tall
Body depth 98 Shallow Deep
Chest width 95 Narrow Wide
Rib structure 113 Coarse Angular
Top line 93 Weak Strong
Rump width 106 Narrow pins Wide pins
Rump angle 104 High pins Low pins
Feet & legs 93
Rear legs, side view 106 Straight Sickled
Rear legs, back rear view 87 Toes out Parallel, bow-legged
Foot angle 118 Low Steep
Bone quality 93 Coarse Fine and thin
Hock quality 87 Filled Dry
Udder 89
Fore udder attachment 91 Loose Strong
Rear udder height 93 Low High
Rear udder width 103 Narrow Wide
Udder support 103 Weak Strong
Udder depth 88 Deep High
Udder balance 83 Deep rear udder Deep front udder
Teat length 107 Short Long
Teat thickness 111 Thin Thick
Teat placement (front) 108 Wide Close
Teat placement (back) 112 Wide Close

NAV proof run date: 05-05-2026 Reliability 94 % Number of daughters: 812

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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