Spring turnout is a welcome milestone in the beef calendar. After months of housing, silage feeding and controlled rations, cattle finally return to grass, reducing feed costs and marking the start of the main growing season

Kathryn Thompson :: Monday 16th February 2026 :: Latest Blog Posts

Spring Turnout for Beef Cattle: Managing the Move from Winter Rations to Fresh Grazing

Spring turnout is a welcome milestone in the beef calendar. After months of housing, silage feeding and controlled rations, cattle finally return to grass, reducing feed costs and marking the start of the main growing season.

But while fresh grazing brings opportunity, it also brings change. Moving too quickly from a winter ration to lush spring pasture can result in digestive upset, reduced liveweight gain and a costly "spring check" in performance.

For store cattle, finishing animals and suckler herds alike, careful transition management protects growth rates and helps maintain profitability per head.

Here's how to manage the move safely and set your beef herd up for a productive grazing season.

Why Spring Grass Requires Careful Management

Early spring grass is nutritionally very different from the silage-based diets fed indoors. Typically, it contains:

• High crude protein
• High sugar levels
• Low structural fibre
• High moisture content
• Variable dry matter

While this makes grass highly digestible, it can also disrupt rumen stability if cattle are turned out abruptly. The rumen microbes that adapted over winter to digest silage and concentrate need time to adjust. Sudden exposure to rapidly fermentable carbohydrates can cause:

• Loose dung
• Reduced dry matter intake
• Fluctuating growth rates
• Increased bloat risk in some systems

According to AHDB Beef & Lamb guidance on grassland management, gradual diet transition is key to maintaining consistent performance at turnout.

Avoiding the "Spring Check" in Store and Finishing Cattle

One of the most common issues at turnout is a temporary drop in liveweight gain, often referred to as a "spring check". This usually happens when:

• Silage is removed too quickly
• Concentrates are withdrawn abruptly
• Cattle struggle to consume enough dry matter from very wet grass

Gradual Introduction to Grazing

A phased turnout strategy supports rumen adaptation:

Days 1–3:

• Turn cattle out for short periods (2–4 hours).
• Offer silage indoors to maintain fibre intake.

Days 4–10:

• Increase grazing time gradually.
• Reduce silage in stages, not all at once.

Beyond 10 days:

• Move towards full grazing if intakes and performance remain stable.

For finishing cattle, avoid sudden removal of concentrates. Maintaining a balanced energy supply supports consistent daily liveweight gain and prevents setbacks in finishing efficiency.

Managing Suckler Cows and Youngstock at Turnout

Spring turnout often coincides with calving or early lactation in suckler systems, making nutritional balance particularly important.

Early spring grass can be high in protein but inconsistent in energy supply. If intakes drop or energy is insufficient:

• Milk yield may reduce
• Cow body condition can decline
• Calf growth rates may slow

Maintaining cow condition during early lactation is vital for future fertility and rebreeding performance.

Young cattle are especially sensitive to sudden dietary shifts. Monitor:

• Dung consistency
• Rumen fill
• General thriftiness

Where necessary, creep feeding or targeted supplementation can help maintain frame development and avoid growth checks that are difficult to recover later in the season.

Preventing Common Spring Grazing Issues in Beef Herds

Grass Tetany (Hypomagnesaemia)

Early spring grass is often low in magnesium and high in potassium, which can interfere with magnesium absorption.

Suckler cows with young calves are particularly at risk.

AHDB recommends ensuring adequate magnesium supplementation during high-risk periods, particularly in rapidly growing pasture.

Practical options include:

• High-magnesium mineral buckets
• Supplemented concentrates
• Mineralised feed blocks

Prevention is far more effective than treatment.

Bloat Risk

Rapidly growing, leafy swards can increase the risk of bloat, particularly in young or fast-growing cattle.

Risk factors include:

• Very lush, immature pasture
• Wet conditions
• Sudden turnout after housing

Introducing cattle gradually and ensuring some fibre intake during the transition period reduces this risk significantly.

Variable Dry Matter Intake

Early grass can contain over 80% water. Even when pasture looks abundant, cattle may struggle to consume sufficient dry matter to sustain target growth rates.

Monitoring liveweight gain during the first few weeks of turnout provides early warning of intake issues.

Practical Grazing Management for a Smooth Transition

Nutrition and grassland management go hand in hand.

Turnout Timing

Avoid:

• Turning cattle out onto very immature covers
• Grazing extremely wet fields that limit intakes
• Overgrazing early paddocks

Aim for adequate grass covers that allow consistent intake while supporting regrowth.

Rotational Grazing

A simple rotational system can:

• Improve grass utilisation
• Support more consistent intakes
• Maintain growth rates
• Protect pasture quality for the rest of the season

Controlled grazing reduces selective feeding and helps maintain steady rumen function.

Monitor Performance Closely

The first three to four weeks after turnout are critical. Track:

• Liveweight gain
• Body condition score
• Dung consistency
• Behaviour and rumen fill

Even small drops in daily gain can have a significant impact on finishing dates and overall margin per head. Respond early if performance dips, adjusting supplementation or grazing management can quickly restore momentum.

Setting Your Beef Herd Up for a Profitable Grazing Season

By introducing grass gradually, maintaining rumen stability, and supplementing strategically where needed, beef producers can:

• Protect daily liveweight gain
• Avoid growth checks
• Maintain cow condition
• Support strong calf performance
• Improve finishing efficiency

Every system is different, from intensive finishing units to low-input suckler herds, and each requires a tailored approach to transition feeding.

At BW Feeds, we work alongside UK beef producers to develop practical feeding strategies that support growth, health and long-term profitability.

If you're preparing for turnout or want to review your spring feeding plan, speak to our team. A smooth transition now helps secure performance for the entire grazing season.