How Immune Modulation Can Improve Dairy Cow Health and Performance
Every dairy producer knows that healthy cows are productive cows. But maintaining herd health isn't simply about treating illness—it's about helping cows handle the everyday stressors that come with modern dairy production.
From calving and fresh cow challenges to heat stress and high milk production, today's dairy cows ask a lot of their immune systems. When that immune system becomes overwhelmed, producers often see the consequences through common health challenges like metritis, ketosis, mastitis, or reduced milk production.
In a recent episode of the Uplevel Dairy Podcast, Dr. Jan Van Dijck, Global Innovation Director at AHV, joined Peggy Coffeen to discuss an emerging area of dairy health: immune modulation. Rather than focusing solely on treating disease after it occurs, this approach aims to help the cow's immune system respond more effectively before problems become larger setbacks.
Why the Immune System Matters More Than Ever
The immune system is constantly working behind the scenes to keep cows healthy.
Every transition period, environmental stressor, dietary change, or disease challenge requires the immune system to respond appropriately. The challenge is that the response isn't always balanced.
According to Dr. Van Dijck, an immune system can become either underactive or overactive. An underactive immune response leaves cows vulnerable to disease, while an overactive response can create unnecessary inflammation that delays recovery and impacts production.
The goal isn't simply to stimulate immunity—it's to help the immune system respond appropriately for the challenge at hand.
That balance is becoming increasingly important as dairy cows continue to produce at higher levels than ever before.
Understanding Immune Modulation in Dairy Cows
Immune modulation is a concept that's gaining attention throughout animal health.
Rather than replacing traditional veterinary treatments, immune modulation focuses on supporting the cow's natural defense system so it can respond more efficiently during periods of stress.
Dr. Van Dijck explained that when cows experience major physiological events like calving, their immune systems often require additional support. Helping regulate that response may improve recovery, reduce inflammation, and support overall health during one of the most demanding periods of lactation.
It's a proactive approach that complements existing herd health strategies instead of waiting until cows become clinically sick.
Plant-Based Solutions Are Creating New Opportunities
One area of research that continues to grow is the use of plant-based compounds to support immune function.
Dr. Van Dijck shared the research behind AHV's product, Aspi, a plant-derived immune modulator designed to help cows maintain a more balanced immune response during periods of stress or illness.
Unlike traditional anti-inflammatory medications, the goal isn't simply to suppress inflammation. Instead, plant-based immune modulation works to encourage the immune system to respond efficiently without becoming excessive.
As dairy producers continue looking for ways to improve animal health while reducing reliance on antibiotics and pharmaceuticals whenever appropriate, these types of innovations are generating increasing interest throughout the industry.
Better Health Starts with Earlier Intervention
One of the most important takeaways from the conversation was the value of acting before problems escalate.
Field research discussed by Dr. Van Dijck demonstrated encouraging results when immune modulation was implemented early. Cows maintained more consistent body temperatures, returned to normal rumination sooner, and experienced fewer recurring health challenges compared to traditional approaches alone.
While no single product eliminates disease risk, supporting immune function during high-stress periods may help improve recovery and reduce the long-term impact of health challenges.
For producers, that can translate into healthier cows, stronger performance, and fewer interruptions throughout the lactation cycle.
A Changing Approach to Dairy Health
Consumer expectations, sustainability goals, and evolving regulations continue to influence how dairy producers approach animal health.
Around the world, producers are looking for management strategies that improve cow welfare while also supporting responsible antibiotic stewardship.
Dr. Van Dijck believes immune modulation represents one piece of that future.
Rather than viewing health as simply treating disease, the industry is beginning to place greater emphasis on prevention, resilience, and supporting the cow's own biological systems.
It's an approach that aligns with the broader goal of helping cows stay healthier, longer.
Looking Ahead
The future of dairy health will likely involve a combination of nutrition, management, technology, veterinary expertise, and innovative biological solutions working together.
As research into immune modulation continues to expand, producers will have more tools available to help cows navigate the stresses of modern production while maintaining productivity and overall wellbeing.
For Dr. Jan Van Dijck, that's the exciting part of the work.
Supporting the immune system isn't about replacing existing management practices—it's about giving dairy producers another science-backed tool to help their cows perform at their best.
Modern dairy production places significant demands on every cow's immune system.
Helping cows maintain a balanced immune response may reduce health setbacks, improve recovery, and support long-term productivity.
As Dr. Jan Van Dijck explains, immune modulation is shifting the conversation from simply treating disease to supporting resilience—an approach that could play an increasingly important role in the future of dairy herd health.
To hear the complete discussion, stream now on Apple Podcasts or Spotify, or watch the full conversation on YouTube.
