Bull

VJ Rockit

NTM 21

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

Solids Calving Ease Hoof health

Link to NAV Bull Data

NTM guide

Production & Efficiency

Trait Index 80 100 120
Production 120
Milk kg 98
Fat, kg 119
Fat, % 114
Protein kg 111
Protein % 119
Persistency 88
Growth 104
Carcass conformation score 102
Saved feed 110
Maintenance efficiency 92

NAV proof run date: 01-04-2025 Reliability 80 % Number of daughters: 0

Expected Progeny Difference

Trait Index Bull effect Average
Milk kg, 305 days 98 -57.3 7713
Fat kg, 305 days 119 20.0 459
Fat %, 305 days 114 0.35 6.0
Protein kg, 305 days 111 9.4 333
Protein %, 305 days 119 0.18 4.3

NAV proof run date: 01-04-2025 Reliability 80 % Number of daughters: 0

Health & Reproduction

Trait Index 80 100 120
Daughter fertility 96
Interval from calving to first insemination (cows) 98
Interval from first to last insemination (heifers) 104
Interval from first to last insemination (cows) 94
Number of inseminations (heifers) 101
Number of inseminations (cows) 94
Calving sire 110
Calving maternal 105
Udder health 106
General health 99
Longevity 105
Hoof health 109
Sole Ulcer 111
Sole Hemorrhage 104
Heel Horn Erosion 92
Digital dermatitis + Interdigital Dermatitis 104
Verrucose dermatitis + Interdigital Hyperplasia 108
Double sole + White line separation 111
Cork screw claw 96
Youngstock survival 101

NAV proof run date: 01-04-2025 Reliability 72 % Number of daughters: 0

Trait Index 80 100 120
Milkability 106
Temperament 99

NAV proof run date: 01-04-2025 Reliability 51 % Number of daughters: 0

Trait Index 80 100 120
Frame 88
Stature 107 Short Tall
Body depth 97 Shallow Deep
Chest width 98 Narrow Wide
Rib structure 105 Coarse Angular
Top line 96 Weak Strong
Rump width 98 Narrow pins Wide pins
Rump angle 105 High pins Low pins
Feet & legs 89
Rear legs, side view 110 Straight Sickled
Rear legs, back rear view 92 Toes out Parallel, bow-legged
Foot angle 98 Low Steep
Bone quality 92 Coarse Fine and thin
Hock quality 99 Filled Dry
Udder 98
Fore udder attachment 89 Loose Strong
Rear udder height 97 Low High
Rear udder width 97 Narrow Wide
Udder support 92 Weak Strong
Udder depth 97 Deep High
Udder balance 92 Deep rear udder Deep front udder
Teat length 108 Short Long
Teat thickness 112 Thin Thick
Teat placement (front) 95 Wide Close
Teat placement (back) 89 Wide Close

NAV proof run date: 01-04-2025 Reliability 51 % 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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