Bull

VJ Rockit

NTM 27

Herdbook number: DNK 305193 Birthdate: 26 Dec 2021

Breed Jersey

Sire VJ Ribe

MGS VJ Nibali

Proven/Genomic Genomic

Beta casein A2A2

Kappa casein BB

Polled Horned

aAa 516

Recommended for

Health Milk Calving Ease Hoof health

Link to NAV Bull Data

NTM guide

Production & Efficiency

Trait Index 80 100 120
Production 122
Milk kg 107
Fat, kg 120
Fat, % 105
Protein kg 117
Protein % 109
Persistency 84
Growth 109
Carcass conformation score 107
Saved feed 112
Maintenance efficiency 95

NAV proof run date: 04-11-2025 Reliability 88 % Number of daughters: 1

Expected Progeny Difference

Trait Index Bull effect Average
Milk kg, 305 days 107 200.5 7758
Fat kg, 305 days 120 21.1 462
Fat %, 305 days 105 0.13 6.0
Protein kg, 305 days 117 14.5 337
Protein %, 305 days 109 0.08 4.4

NAV proof run date: 04-11-2025 Reliability 88 % Number of daughters: 1

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 99
Interval from calving to first insemination (cows) 99
Interval from first to last insemination (heifers) 113
Interval from first to last insemination (cows) 95
Number of inseminations (heifers) 113
Number of inseminations (cows) 99
Calving sire 109
Calving maternal 102
Udder health 108
General health 101
Longevity 100
Hoof health 114
Sole Ulcer 116
Sole Hemorrhage 107
Heel Horn Erosion 93
Digital dermatitis + Interdigital Dermatitis 107
Verrucose dermatitis + Interdigital Hyperplasia 112
Double sole + White line separation 113
Cork screw claw 92
Youngstock survival 114

NAV proof run date: 04-11-2025 Reliability 74 % Number of daughters: 0

Trait Index 80 100 120
Milkability 105
Temperament 101

NAV proof run date: 04-11-2025 Reliability 53 % Number of daughters: 0

Trait Index 80 100 120
Frame 88
Stature 106 Short Tall
Body depth 97 Shallow Deep
Chest width 99 Narrow Wide
Rib structure 105 Coarse Angular
Top line 96 Weak Strong
Rump width 97 Narrow pins Wide pins
Rump angle 107 High pins Low pins
Feet & legs 91
Rear legs, side view 108 Straight Sickled
Rear legs, back rear view 94 Toes out Parallel, bow-legged
Foot angle 97 Low Steep
Bone quality 93 Coarse Fine and thin
Hock quality 98 Filled Dry
Udder 98
Fore udder attachment 87 Loose Strong
Rear udder height 96 Low High
Rear udder width 98 Narrow Wide
Udder support 92 Weak Strong
Udder depth 97 Deep High
Udder balance 93 Deep rear udder Deep front udder
Teat length 109 Short Long
Teat thickness 116 Thin Thick
Teat placement (front) 94 Wide Close
Teat placement (back) 90 Wide Close

NAV proof run date: 04-11-2025 Reliability 53 % Number of daughters: 0

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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