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Jersey Herd Management Tips

Jerseys are smaller and have their own habits. Herds that manage them well pay attention to calving, early lactation, feed and comfort, and handle them calmly.

Know what makes Jerseys different

Jerseys are smaller than most other dairy breeds, usually produce milk with high fat and protein, and are often curious, quick and friendly. They can be affected by cold or damp weather differently from larger cows.

Size matters for everything from stall dimensions to feed amounts, so facilities and routines built for bigger cows may need adjusting.

Handle calves, heifers and cows quietly from the start. Jerseys remember rough treatment, and calm animals are easier and safer to work with. Write down the weights, sizes and feed amounts your nutritionist recommends so new staff can follow the same plan.

Calving and newborn calves

Jersey calves are smaller at birth. Even so, calving needs a close watch. Good records, clean calving pens and a trained person on hand reduce losses. Call your vet for any calving that is not progressing.

Give every calf colostrum as soon as possible after birth and within the first hours of life. Small calves chill easily, so dry, draft-free and clean housing is important.

Because bull calves are worth less in some markets, plan ahead for what you will do with them, such as selling to a dairy-beef program or a calf raiser. Your milk buyer or program may have rules about animal care. Wash hands and keep calving equipment clean, and write down the time of birth and the time of the first feeding for every calf.

Early lactation and metabolic health

High-component cows can be at risk of metabolic problems around calving, especially if the dry period or the close-up diet is not managed well. Work with your nutritionist on dry cow and fresh cow rations, and keep an eye on body condition on the one to five scale.

A fresh Jersey that stops eating needs a vet's attention that day. Early detection is the best protection. Record each health event along with the date, cow and outcome, and share the records with your vet at herd checks.

• Watch appetite and rumen fill every day after calving
• Check body condition at dry-off and calving
• Keep feed bunks clean and feed fresh
• Record any health event in the cow's file

Feeding and bunk space

Jerseys eat less in total, but they eat a lot for their size. Rations are often set for higher components. Ask your nutritionist to balance the diet for your actual cows, not for a book average.

Make sure there is enough bunk and water space for smaller, quicker cows, and avoid mixing them in the same pen with much larger cows if you can help it. Bigger animals may push them away from feed.

If you feed a total mixed ration, ask the nutritionist whether the mix works for the whole group or whether smaller cows need their own pen. Mixed-size groups are a common cause of uneven intake.

Housing and comfort

Stalls should fit smaller cows so they lie down comfortably and stay clean. Stalls that are too big let cows lie crooked and get dirty, while stalls that are too small cause injury. Ask your extension specialist or a comfort advisor to check the measurements.

Jerseys can be sensitive to cold wet conditions, so provide dry bedding and shelter in winter. In hot weather, supply shade, airflow and water.

Check stalls regularly for wear and for how cows actually use them. A cow lying half in the alley is telling you the stall is not right. Adjust feed bunk height and stall dividers as needed so smaller animals can eat and rest without strain.

Handling and safety

Jerseys are generally easy to work with, but they can still kick, crush and surprise a handler. Use quiet handling, good lighting and non-slip flooring. Bulls of any dairy breed can be dangerous, including smaller Jersey bulls, so follow safe bull handling guidelines from your vet, extension or OSHA and never work alone around a bull.

Train every new worker on safe handling before they work alone with cows. Follow manufacturer, OSHA and extension guidance for equipment, pens and gates.

Records and breeding

Because many Jersey herds sell on components, keep good test day records for fat and protein along with milk volume. Track fertility, calving ease and health events.

Work with your genetics supplier to choose sires that fit your goals for components, feet, udder and fertility. Your breed association can explain registration and evaluation tools. Review reproductive records with your vet at routine herd checks.

More in Breeding, Genetics & Reproduction

• Holstein Herd Management Tips
• Crossbred Cow Management
• Record Keeping for Reproduction
• Herd Reproduction Reports Explained
• Improving 21-Day Pregnancy Rate
• Annual Breeding Calendar for Dairy Herds