Bull

VJ Leby

NTM 10

Herdbook number: DNK 304546 Birthdate: 21 Dec 2016

Breed Jersey

Sire VJ Landa

MGS VJ Hihl

Proven/Genomic Proven

Beta casein A2A2

Kappa casein BB

Polled Horned

aAa 261

Recommended for

Fertility Calving Ease Hoof health

Link to NAV Bull Data

NTM guide

Production & Efficiency

Trait Index 80 100 120
Production 100
Milk kg 101
Fat, kg 98
Fat, % 97
Protein kg 103
Protein % 101
Persistency 111
Growth 89
Saved feed 97
Maintenance efficiency 99

NAV proof run date: 03-02-2026 Reliability 98 % Number of daughters: 232

Expected Progeny Difference

Trait Index Bull effect Average
Milk kg, 305 days 101 28.6 7778
Fat kg, 305 days 98 -2.1 463
Fat %, 305 days 97 -0.08 6.0
Protein kg, 305 days 103 2.6 339
Protein %, 305 days 101 0.01 4.4

NAV proof run date: 03-02-2026 Reliability 98 % Number of daughters: 232

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 125
Interval from calving to first insemination (cows) 115
Interval from first to last insemination (heifers) 116
Interval from first to last insemination (cows) 126
Number of inseminations (heifers) 108
Number of inseminations (cows) 120
Calving sire 105
Calving maternal 111
Udder health 100
General health 92
Longevity 118
Hoof health 105
Sole Ulcer 109
Sole Hemorrhage 112
Heel Horn Erosion 89
Digital dermatitis + Interdigital Dermatitis 97
Verrucose dermatitis + Interdigital Hyperplasia 99
Double sole + White line separation 109
Cork screw claw 109
Youngstock survival 96

NAV proof run date: 03-02-2026 Reliability 92 % Number of daughters: 202

Trait Index 80 100 120
Milkability 115
Temperament 111

NAV proof run date: 03-02-2026 Reliability 83 % Number of daughters: 111

Trait Index 80 100 120
Frame 98
Stature 114 Short Tall
Body depth 104 Shallow Deep
Chest width 102 Narrow Wide
Rib structure 117 Coarse Angular
Top line 100 Weak Strong
Rump width 116 Narrow pins Wide pins
Rump angle 107 High pins Low pins
Feet & legs 98
Rear legs, side view 103 Straight Sickled
Rear legs, back rear view 113 Toes out Parallel, bow-legged
Foot angle 90 Low Steep
Bone quality 102 Coarse Fine and thin
Hock quality 94 Filled Dry
Udder 105
Fore udder attachment 99 Loose Strong
Rear udder height 100 Low High
Rear udder width 99 Narrow Wide
Udder support 107 Weak Strong
Udder depth 116 Deep High
Udder balance 99 Deep rear udder Deep front udder
Teat length 84 Short Long
Teat thickness 89 Thin Thick
Teat placement (front) 105 Wide Close
Teat placement (back) 109 Wide Close

NAV proof run date: 03-02-2026 Reliability 83 % Number of daughters: 111

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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