Bull

VJ Lasky

NTM -4

Herdbook number: DNK 304566 Birthdate: 24 Mar 2017

Breed Jersey

Sire VJ Lari

MGS VJ Husky

Proven/Genomic Proven

Beta casein A1A2

Kappa casein AB

Polled Horned

aAa 465231

Recommended for

Milk Calving Ease Hoof health

Link to NAV Bull Data

NTM guide

Production & Efficiency

Trait Index 80 100 120
Production 98
Milk kg 120
Fat, kg 98
Fat, % 81
Protein kg 108
Protein % 75
Persistency 121
Growth 112
Saved feed 98
Maintenance efficiency 101

NAV proof run date: 03-02-2026 Reliability 99 % Number of daughters: 1540

Expected Progeny Difference

Trait Index Bull effect Average
Milk lbs, 305 days 120 1,263.03 17,147.55
Fat lbs, 305 days 98 -4.63 1,020.74
Fat %, 305 days 81 -0.48 6.0
Protein lbs, 305 days 108 14.99 747.37
Protein %, 305 days 75 -0.23 4.4

NAV proof run date: 03-02-2026 Reliability 99 % Number of daughters: 1540

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 102
Interval from calving to first insemination (cows) 96
Interval from first to last insemination (heifers) 105
Interval from first to last insemination (cows) 102
Number of inseminations (heifers) 102
Number of inseminations (cows) 103
Calving sire 106
Calving maternal 107
Udder health 90
General health 97
Longevity 106
Hoof health 119
Sole Ulcer 134
Sole Hemorrhage 101
Heel Horn Erosion 92
Digital dermatitis + Interdigital Dermatitis 91
Verrucose dermatitis + Interdigital Hyperplasia 94
Double sole + White line separation 140
Cork screw claw 84
Youngstock survival 102

NAV proof run date: 03-02-2026 Reliability 98 % Number of daughters: 1249

Trait Index 80 100 120
Milkability 99
Temperament 105

NAV proof run date: 03-02-2026 Reliability 93 % Number of daughters: 706

Trait Index 80 100 120
Frame 108
Stature 96 Short Tall
Body depth 107 Shallow Deep
Chest width 111 Narrow Wide
Rib structure 98 Coarse Angular
Top line 107 Weak Strong
Rump width 96 Narrow pins Wide pins
Rump angle 102 High pins Low pins
Feet & legs 103
Rear legs, side view 109 Straight Sickled
Rear legs, back rear view 94 Toes out Parallel, bow-legged
Foot angle 108 Low Steep
Bone quality 94 Coarse Fine and thin
Hock quality 117 Filled Dry
Udder 95
Fore udder attachment 98 Loose Strong
Rear udder height 90 Low High
Rear udder width 87 Narrow Wide
Udder support 98 Weak Strong
Udder depth 90 Deep High
Udder balance 102 Deep rear udder Deep front udder
Teat length 129 Short Long
Teat thickness 103 Thin Thick
Teat placement (front) 87 Wide Close
Teat placement (back) 85 Wide Close

NAV proof run date: 03-02-2026 Reliability 93 % Number of daughters: 706

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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