Know · Breeds, terms & health
Jersey
A small dairy breed famous for high butterfat and protein milk and excellent feed efficiency per unit of milk solids.
Overview
Jerseys are a primary dairy breed worldwide. Lower body weight reduces maintenance versus Holsteins while solids-corrected milk remains competitive. Not intended as a terminal beef breed, though beef-on-dairy programs exist with specialized sires.
- Origin
- Isle of Jersey, Channel Islands
- Also known as
- Jersey dairy cattle
- Mature cow weight
- 800–1,000 lb
- Mature bull weight
- 1,200–1,600 lb
- Default planning weight
- 900 lb · 0.75 AUE
Growth
Dairy heifer growth curves differ from beef; target breeding weights carefully to avoid dystocia.
Milk
Elite solids: high butterfat and protein. Volume is lower than Holstein but efficiency is high.
Temperament
Active and curious; good parlor routines and low-stress handling matter.
Climate
Relatively heat-tolerant among major dairy breeds; still need cooling in extreme THI.
Feed
Precision dairy nutrition and transition cow management are critical. Lower AUE helps stocking on limited forage dairies.
Pasture
Excellent for pasture-based dairies when genetics and fertility are managed.
Management
Calving ease, milk fever prevention, and udder health programs are central. Use dairy genetic evaluations, not beef EPDs.
Strengths
- Milk solids and efficiency
- Lower maintenance weight
- Pasture dairy fit
Limitations
- Not a primary beef carcass breed
- Dairy-specific disease and nutrition demands
- Cull cow values differ from beef breeds