Bull

VJ Nirak

NTM 25

Herdbook number: DNK 305141 Birthdate: 9 Apr 2021

Breed Jersey

Sire VJ Nibiru

MGS VJ Pele

Proven/Genomic Proven

Beta casein A2A2

Kappa casein BB

Polled Horned

aAa 516

Recommended for

Grazing Health Robot Solids Hoof health

Link to NAV Bull Data

NTM guide

Production & Efficiency

Trait Index 80 100 120
Production 124
Milk kg 101
Fat, kg 121
Fat, % 112
Protein kg 116
Protein % 119
Persistency 98
Growth 97
Daily carcass gain 103
Carcass conformation score 96
Saved feed 106
Maintenance efficiency 97

NAV proof run date: 03-02-2026 Reliability 99 % Number of daughters: 887

Expected Progeny Difference

Trait Index Bull effect Average
Milk kg, 305 days 101 28.6 7778
Fat kg, 305 days 121 22.1 463
Fat %, 305 days 112 0.30 6.0
Protein kg, 305 days 116 13.7 339
Protein %, 305 days 119 0.18 4.4

NAV proof run date: 03-02-2026 Reliability 99 % Number of daughters: 887

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 101
Interval from calving to first insemination (cows) 105
Interval from first to last insemination (heifers) 100
Interval from first to last insemination (cows) 101
Number of inseminations (heifers) 99
Number of inseminations (cows) 100
Calving sire 103
Calving maternal 89
Udder health 105
General health 111
Longevity 97
Hoof health 108
Sole Ulcer 114
Sole Hemorrhage 102
Heel Horn Erosion 91
Digital dermatitis + Interdigital Dermatitis 101
Verrucose dermatitis + Interdigital Hyperplasia 86
Double sole + White line separation 116
Cork screw claw 99
Youngstock survival 104

NAV proof run date: 03-02-2026 Reliability 92 % Number of daughters: 765

Trait Index 80 100 120
Milkability 109
Temperament 81

NAV proof run date: 03-02-2026 Reliability 83 % Number of daughters: 264

Trait Index 80 100 120
Frame 94
Stature 103 Short Tall
Body depth 104 Shallow Deep
Chest width 111 Narrow Wide
Rib structure 95 Coarse Angular
Top line 90 Weak Strong
Rump width 104 Narrow pins Wide pins
Rump angle 102 High pins Low pins
Feet & legs 79
Rear legs, side view 122 Straight Sickled
Rear legs, back rear view 88 Toes out Parallel, bow-legged
Foot angle 87 Low Steep
Bone quality 98 Coarse Fine and thin
Hock quality 98 Filled Dry
Udder 107
Fore udder attachment 105 Loose Strong
Rear udder height 100 Low High
Rear udder width 104 Narrow Wide
Udder support 104 Weak Strong
Udder depth 103 Deep High
Udder balance 94 Deep rear udder Deep front udder
Teat length 122 Short Long
Teat thickness 111 Thin Thick
Teat placement (front) 93 Wide Close
Teat placement (back) 99 Wide Close

NAV proof run date: 03-02-2026 Reliability 83 % Number of daughters: 264

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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