Weaning is a critical stage in a beef calf’s life, typically occurring at 6 to 8 months of age. However, it is also one of the most stressful periods, exposing calves to multiple challenges all at once. These include:
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Separation from the dam
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Changes in feed and water sources
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Vaccination, castration, dehorning, and handling
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Exposure to new environments
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Weather fluctuations, especially in spring-born calves
Without proper management, this stress can weaken the immune system, increase illness, and reduce growth and performance. A thoughtful approach before, during, and after weaning can significantly improve calf outcomes.
Preparing Calves for Weaning
Pre-weaning management is essential.
It sets the foundation for a smoother transition and stronger post-weaning performance. Key practices include:
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Nutrition: Offer a balanced diet rich in protein, energy, vitamins, and minerals to support immunity and resilience.
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Vaccination: Give vaccines 2 to 3 weeks before weaning, allowing the immune system time to respond before the stress of separation.
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Processing: Complete procedures like castration, dehorning, and branding before weaning to avoid stacking stressors.
Choosing a Weaning Strategy
There are three main weaning methods, each with its own benefits and challenges:
1. Abrupt Weaning (Total Separation)
This method involves suddenly removing calves from their dams. It’s simple and allows for immediate sale, but it’s also highly stressful.
Risks include:
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Increased vocalization and pacing
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Lower feed intake
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Weight loss
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Higher risk of disease (especially respiratory and digestive issues)
2. Fenceline Weaning
Cows and calves are placed in adjacent pens or pastures, separated by a secure fence. They can see, hear, and smell each other, but cannot nurse.
Benefits:
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Less stress-related behavior (bawling, pacing)
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Better feed intake and weight gain
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Reduced stress markers (such as lower blood haptoglobin levels)
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Improved performance in the first weeks after weaning
Best practices:
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Introduce cow-calf pairs to the weaning area in advance
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Use strong fencing (e.g., five-strand barbed wire, electric offset, or panels)
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Provide shade, familiar waterers, and easy access to feed
3. Two-Step Weaning
This involves using plastic nose paddles to stop nursing while calves remain with their dams. After 4 to 7 days, calves are then separated.
Benefits:
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Gradual separation reduces behavioral stress
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Calves maintain normal eating and gain weight before physical separation
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Lower stress at the time of final weaning
Tips for success:
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Insert paddles securely and monitor for loss or nursing attempts
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After 4–7 days, remove the paddles and separate calves from cows
After Weaning: Supporting Calf Health
Once weaned, calves need continued support to stay healthy and growing:
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Feed: Choose high-quality, palatable feed that’s easy to digest. Introduce energy-dense grains gradually.
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Water: Ensure unrestricted access to clean, fresh water at all times.
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Environment: Keep calves comfortable by minimizing exposure to dust, mud, and extreme temperatures.
Final Thoughts
Weaning is one of the most stressful times for beef calves, but it doesn’t have to be. Low-stress methods like fenceline and two-step weaning can ease the transition and improve long-term calf performance. By focusing on proper preparation, sound weaning strategies, and good post-weaning care, producers can raise healthier calves and set the stage for better results in the feedlot and beyond.
