High-producing cows (+45 kg/day) in severe heat stress conditions. A new 2025 trial shows Core Cool Systems delivered better results than the region’s most advanced intermittent cooling setups.
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In regions with prolonged extreme heat, high humidity, and limited nighttime cooling. Managing heat stress is one of the toughest challenges on a dairy farm.
The challenge is even greater for high-producing cows yielding more than 45 kg (99 lbs) of milk per day. These cows generate massive amounts of internal metabolic heat, which makes heat stress more severe and recovery far more difficult.
That is exactly why a major commercial trial was conducted in a Middle Eastern country with severe heat stress conditions during the summer of 2025.
The Goal of the Trial
Could continuous cow-level cooling with Core Cool Systems outperform the most advanced and widely trusted intermittent cooling systems used and trusted in that region?
This was not a test against basic cooling; the trial compared Core Cool Systems against the current industry-leading approach.
Trial Setup
Three groups of high-producing cows were monitored on the same commercial farm under identical management and environmental conditions:
- Group A: Sensor-activated bunk soaker system + HVLS fans + 3 daily cooling yard sessions
- Group B: 45° angled HVLS fans + low-pressure misters + 3 daily cooling yard sessions
- Group C: Core Cool Systems – continuous in-pen cooling (no cooling yard trips)
Data was collected with SCR collars and independently analyzed by Dr. Doron Bar, DVM.
Key Results – Core Cool Delivered Superior Performance
1. Significantly Reduced Heat Stress
Core Cool Systems reduced heavy breathing by:
- Up to 86 minutes per cow per day
- 19% less than the leading HVLS + mister system
All of this was achieved without the labor and disruption of three daily trips to the cooling yard.
2. Increased Resting Time:
Cows with Core Cool System rested 26 to 31 minutes more per day than the groups using the industry-leading intermittent systems.
Better resting = better rumination, better recovery, and better overall cow comfort.
3. Better Resilience When Conditions Changed: Even as THI declined later in the trial, cows on intermittent cooling (with cooling yards) continued to show signs of accumulated heat load, increased heavy breathing rate, reduced resting, and declining milk production.
The Core Cool Systems group maintained performance even as heat load accumulated over time. While competing against systems specifically designed for severe heat stress environments.
4. Stable High-Level Milk Production: Milk production stayed strong at 45 kg/day in the Core Cool group, while production dropped in the groups relying on traditional cooling yard sessions, despite these being high-output cows already generating heavy internal heat.
Why This Matters
Cooling yards and sensor-activated bunk soakers provide temporary relief. But once cows return to the pen or leave the feed bunk area, heat begins to accumulate again. In prolonged severe heat, this leads to chronic stress.
Core Cool Systems solves this by delivering continuous, targeted cooling directly where cows eat and rest — continuously removing heat before it accumulates and causes problems.
Final Takeaway
In one of the world’s most demanding heat stress environments, Core Cool Systems outperformed the leading intermittent cooling strategies. Delivering better cow comfort, more resting time, and more stable milk production with far less labor and hassle.
For high-producing herds facing long, hot summers, continuous in-pen cooling is a game-changer.
Watch the Trial Summary Video ▶ https://youtu.be/CHzNdMBUUD4
Ready to improve your results this summer? Contact us for a quick farm assessment and a personalized ROI projection for your herd.
Email - info@corecoolsystems.com or Visit our Website - corecoolsystems.com