Bull

VJ Jern

NTM -4

Herdbook number: DNK 303457 Birthdate: 22 Feb 2010

Breed Jersey

Sire DJ Jason

MGS Q Hirse

Proven/Genomic Proven

Beta casein A2A2

Kappa casein BB

Polled Horned

aAa 645213

Recommended for

Milk

Link to NAV Bull Data

NTM guide

Production & Efficiency

Trait Index 80 100 120
Production 104
Milk kg 105
Fat, kg 103
Fat, % 96
Protein kg 106
Protein % 97
Persistency 108
Growth 106
Saved feed 95
Maintenance efficiency 86

NAV proof run date: 03-02-2026 Reliability 98 % Number of daughters: 156

Expected Progeny Difference

Trait Index Bull effect Average
Milk kg, 305 days 105 143.2 7778
Fat kg, 305 days 103 3.2 463
Fat %, 305 days 96 -0.10 6.0
Protein kg, 305 days 106 5.1 339
Protein %, 305 days 97 -0.03 4.4

NAV proof run date: 03-02-2026 Reliability 98 % Number of daughters: 156

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 96
Interval from calving to first insemination (cows) 89
Interval from first to last insemination (heifers) 103
Interval from first to last insemination (cows) 95
Number of inseminations (heifers) 110
Number of inseminations (cows) 97
Calving sire 104
Calving maternal 100
Udder health 91
General health 102
Longevity 102
Hoof health 94
Sole Ulcer 93
Sole Hemorrhage 99
Heel Horn Erosion 103
Digital dermatitis + Interdigital Dermatitis 100
Verrucose dermatitis + Interdigital Hyperplasia 82
Double sole + White line separation 93
Cork screw claw 99
Youngstock survival 103

NAV proof run date: 03-02-2026 Reliability 90 % Number of daughters: 129

Trait Index 80 100 120
Milkability 116
Temperament 100

NAV proof run date: 03-02-2026 Reliability 85 % Number of daughters: 114

Trait Index 80 100 120
Frame 102
Stature 100 Short Tall
Body depth 124 Shallow Deep
Chest width 123 Narrow Wide
Rib structure 93 Coarse Angular
Top line 82 Weak Strong
Rump width 119 Narrow pins Wide pins
Rump angle 97 High pins Low pins
Feet & legs 102
Rear legs, side view 92 Straight Sickled
Rear legs, back rear view 119 Toes out Parallel, bow-legged
Foot angle 104 Low Steep
Bone quality 72 Coarse Fine and thin
Hock quality 92 Filled Dry
Udder 75
Fore udder attachment 79 Loose Strong
Rear udder height 92 Low High
Rear udder width 98 Narrow Wide
Udder support 98 Weak Strong
Udder depth 71 Deep High
Udder balance 105 Deep rear udder Deep front udder
Teat length 113 Short Long
Teat thickness 93 Thin Thick
Teat placement (front) 88 Wide Close
Teat placement (back) 85 Wide Close

NAV proof run date: 03-02-2026 Reliability 85 % Number of daughters: 114

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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