Dam

Dam

Bull

Dam

Dam

Bull

VJ Laster

NTM 14

Herdbook number: DNK 304827 Birthdate: 1 Feb 2019

Breed Jersey

Sire VJ Lasky

MGS VJ Perez

Proven/Genomic Proven

Beta casein A2A2

Kappa casein AB

Polled Horned

aAa 426

Recommended for

Grazing Fertility Calving Ease Hoof health Organic

Link to NAV Bull Data

NTM guide

Production & Efficiency

Trait Index 80 100 120
Production 95
Milk kg 96
Fat, kg 94
Fat, % 100
Protein kg 97
Protein % 103
Persistency 108
Growth 107
Saved feed 96
Maintenance efficiency 109

NAV proof run date: 03-02-2026 Reliability 99 % Number of daughters: 2485

Expected Progeny Difference

Trait Index Bull effect Average
Milk kg, 305 days 96 -114.6 7778
Fat kg, 305 days 94 -6.3 463
Fat %, 305 days 100 0.00 6.0
Protein kg, 305 days 97 -2.6 339
Protein %, 305 days 103 0.03 4.4

NAV proof run date: 03-02-2026 Reliability 99 % Number of daughters: 2485

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 129
Interval from calving to first insemination (cows) 110
Interval from first to last insemination (heifers) 119
Interval from first to last insemination (cows) 127
Number of inseminations (heifers) 121
Number of inseminations (cows) 130
Calving sire 114
Calving maternal 106
Udder health 111
General health 113
Longevity 100
Hoof health 124
Sole Ulcer 125
Sole Hemorrhage 116
Heel Horn Erosion 107
Digital dermatitis + Interdigital Dermatitis 109
Verrucose dermatitis + Interdigital Hyperplasia 104
Double sole + White line separation 128
Cork screw claw 91
Youngstock survival 106

NAV proof run date: 03-02-2026 Reliability 98 % Number of daughters: 2111

Trait Index 80 100 120
Milkability 91
Temperament 90

NAV proof run date: 03-02-2026 Reliability 94 % Number of daughters: 1064

Trait Index 80 100 120
Frame 92
Stature 95 Short Tall
Body depth 80 Shallow Deep
Chest width 97 Narrow Wide
Rib structure 89 Coarse Angular
Top line 104 Weak Strong
Rump width 83 Narrow pins Wide pins
Rump angle 89 High pins Low pins
Feet & legs 114
Rear legs, side view 104 Straight Sickled
Rear legs, back rear view 114 Toes out Parallel, bow-legged
Foot angle 98 Low Steep
Bone quality 103 Coarse Fine and thin
Hock quality 126 Filled Dry
Udder 109
Fore udder attachment 106 Loose Strong
Rear udder height 90 Low High
Rear udder width 90 Narrow Wide
Udder support 96 Weak Strong
Udder depth 112 Deep High
Udder balance 87 Deep rear udder Deep front udder
Teat length 117 Short Long
Teat thickness 97 Thin Thick
Teat placement (front) 98 Wide Close
Teat placement (back) 86 Wide Close

NAV proof run date: 03-02-2026 Reliability 94 % Number of daughters: 1064

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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