Bull

VJ Lemon

NTM 13

Herdbook number: DNK 304863 Birthdate: 10 Apr 2019

Breed Jersey

Sire VJ Leby

MGS VJ Haley

Proven/Genomic Proven

Beta casein A2A2

Kappa casein AB

Polled Horned

aAa 243

Recommended for

Robot Milk Fertility Hoof health

Link to NAV Bull Data

NTM guide

Production & Efficiency

Trait Index 80 100 120
Production 106
Milk kg 107
Fat, kg 106
Fat, % 96
Protein kg 107
Protein % 96
Persistency 114
Growth 93
Saved feed 106
Maintenance efficiency 118

NAV proof run date: 03-02-2026 Reliability 97 % Number of daughters: 144

Expected Progeny Difference

Trait Index Bull effect Average
Milk kg, 305 days 107 200.5 7778
Fat kg, 305 days 106 6.3 463
Fat %, 305 days 96 -0.10 6.0
Protein kg, 305 days 107 6.0 339
Protein %, 305 days 96 -0.04 4.4

NAV proof run date: 03-02-2026 Reliability 97 % Number of daughters: 144

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 119
Interval from calving to first insemination (cows) 104
Interval from first to last insemination (heifers) 112
Interval from first to last insemination (cows) 119
Number of inseminations (heifers) 111
Number of inseminations (cows) 116
Calving sire 89
Calving maternal 117
Udder health 94
General health 92
Longevity 111
Hoof health 118
Sole Ulcer 114
Sole Hemorrhage 120
Heel Horn Erosion 110
Digital dermatitis + Interdigital Dermatitis 114
Verrucose dermatitis + Interdigital Hyperplasia 97
Double sole + White line separation 110
Cork screw claw 114
Youngstock survival 95

NAV proof run date: 03-02-2026 Reliability 84 % Number of daughters: 117

Trait Index 80 100 120
Milkability 105
Temperament 100

NAV proof run date: 03-02-2026 Reliability 75 % Number of daughters: 54

Trait Index 80 100 120
Frame 97
Stature 97 Short Tall
Body depth 77 Shallow Deep
Chest width 81 Narrow Wide
Rib structure 113 Coarse Angular
Top line 99 Weak Strong
Rump width 107 Narrow pins Wide pins
Rump angle 89 High pins Low pins
Feet & legs 106
Rear legs, side view 108 Straight Sickled
Rear legs, back rear view 115 Toes out Parallel, bow-legged
Foot angle 98 Low Steep
Bone quality 110 Coarse Fine and thin
Hock quality 106 Filled Dry
Udder 111
Fore udder attachment 105 Loose Strong
Rear udder height 100 Low High
Rear udder width 94 Narrow Wide
Udder support 90 Weak Strong
Udder depth 114 Deep High
Udder balance 99 Deep rear udder Deep front udder
Teat length 101 Short Long
Teat thickness 102 Thin Thick
Teat placement (front) 95 Wide Close
Teat placement (back) 89 Wide Close

NAV proof run date: 03-02-2026 Reliability 75 % Number of daughters: 54

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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