Essential Tips for Healthy Calf Rearing

Essential Tips for Healthy Calf Rearing

Raising healthy calves starts well before they enter the calf shed. Good management during the first few hours, days and weeks of life can have a major impact on calf health, growth and future performance.

Whether you’re raising dairy replacements, beef-on-dairy calves or calves destined for the beef supply chain, getting the basics right consistently is one of the best investments you can make.

1. Get Colostrum Right

Colostrum management is one of the most important parts of successful calf rearing.

Newborn calves rely on colostrum to provide antibodies that help protect them against disease during their first weeks of life. Aim to provide good-quality colostrum as soon as possible after birth and ensure calves receive an adequate volume.

Where possible, use a Brix refractometer to help assess colostrum quality rather than relying on appearance alone.

Remember the key principles: quality, quantity, quickly and cleanliness.

2. Maintain Excellent Hygiene

Young calves are particularly vulnerable to infectious diseases, including those that cause scours and respiratory illness.

Feeding equipment such as bottles, teats, buckets, feeders and mixing equipment should be cleaned thoroughly and regularly. Calf pens should also be kept as clean and dry as practically possible.

Having dedicated equipment for sick calves can help reduce the risk of spreading infection throughout the group.

3. Provide Consistent Nutrition

Consistency is extremely important when feeding calves.

Whether you’re feeding whole milk, waste milk or milk replacer, try to maintain consistent feeding times, volumes, concentrations and temperatures. Sudden changes can place unnecessary stress on a calf’s digestive system.

When using milk replacer, always follow the manufacturer’s mixing instructions and measure both powder and water accurately.

Fresh, clean water should be available to calves from an early age, along with a high-quality calf starter feed to encourage rumen development.

4. Watch Calves Closely

One of the best tools in calf rearing doesn’t cost anything — observation.

Spend time watching calves during every feed. Knowing what is normal for your calves makes it much easier to identify when something isn’t right.

Early warning signs can include:

• Reduced appetite or slower drinking
• Droopy ears
• Dull or sunken eyes
• Diarrhoea
• Coughing or nasal discharge
• Increased breathing rate
• Isolation from other calves
• Reduced activity
• Changes in posture or behaviour

Early detection gives you the opportunity to investigate and respond before a problem becomes more serious.

5. Keep Housing Clean, Dry and Well Ventilated

Calves need protection from extreme weather while still having access to good ventilation.

Poor airflow and excessive moisture can contribute to respiratory problems, while wet bedding increases heat loss and creates an environment where pathogens can thrive.

Provide plenty of clean, dry bedding and regularly check areas around feeders, water troughs and high-traffic sections of the pen.

Good drainage is just as important as good bedding.

6. Reduce Stress Wherever Possible

Calves experience stress from transport, weather changes, handling, regrouping, dehorning, illness and changes in feeding.

While some stressors can’t be avoided, good planning can help minimise their impact. Avoid making several major changes at the same time where possible.

Quiet, consistent handling also makes calves easier and safer to manage as they grow.

7. Keep Accurate Records

Good calf records can help identify patterns that aren’t always obvious during day-to-day feeding.

Useful information to record includes birth details, colostrum intake, feeding changes, weights, health observations, treatments, medications, vaccinations and weaning information.

Records can also help identify whether particular pens, age groups or management periods are experiencing higher rates of illness.

8. Have a Clear Health Plan

Work with your veterinarian or animal health professional to develop health and treatment protocols appropriate for your farm.

Everyone responsible for calves should know what signs to look for, when treatment is required and when veterinary advice should be sought.

Having clear protocols also helps ensure calves receive consistent care regardless of who is feeding them that day.

9. Don’t Rush Weaning

Weaning shouldn’t be based on age alone.

Before removing milk, calves should be consistently eating enough starter feed and showing good growth and general health. Gradual weaning can help encourage starter intake while reducing the stress associated with the transition.

Continue monitoring calves closely after weaning, as this is another important transition period.

10. Consistency Makes the Difference

There isn’t one single product or management technique that guarantees healthy calves.

Successful calf rearing comes from doing the fundamentals well — every day.

Good colostrum management, consistent nutrition, clean equipment, dry housing, careful observation, accurate records and early intervention all work together to give calves the strongest possible start.

At KMJ Livestock Solutions, we believe practical calf management should be simple, achievable and backed by real-world livestock experience.

Healthy calves today build stronger herds tomorrow.