How Dairy Veterinary Medicine Has Evolved—and What the Next Generation Can Learn From It

The dairy industry has changed dramatically over the last several decades.

Herds have grown. Technology has advanced. Data has become central to decision-making. And veterinary medicine has evolved from primarily treating sick animals to helping producers proactively manage herd health and performance.

Few people have witnessed that transformation more closely than Dr. Paul Meger.

And few people represent the future of the profession better than his daughter, Dr. Amanda Onan.

Together, their careers provide a unique perspective on how dairy veterinary medicine has evolved, what has stayed the same, and the lessons that continue to matter regardless of how much the industry changes.

Great Dairy Veterinarians Do More Than Treat Cows

When Dr. Paul Meger first entered veterinary medicine, much of the work focused on responding to problems.

Farmers called when something went wrong.

Veterinarians arrived to diagnose, treat, and move on to the next farm.

Over time, that role expanded.

Today, veterinarians are often key members of a farm's management team. They help analyze herd data, develop protocols, improve transition cow performance, evaluate reproduction programs, and collaborate with nutritionists and other advisors.

According to Paul, some of the most important advances in dairy management came from shifting toward prevention rather than reaction.

The goal is no longer just treating disease.

It's helping producers avoid problems before they happen.

Data Has Changed Dairy Management Forever

One of the biggest changes both Paul and Amanda point to is the growing role of data.

Computerized records, herd management software, and monitoring systems have transformed the way producers and veterinarians make decisions.

What once relied heavily on observation and intuition can now be supported by detailed performance information.

That doesn't mean experience is less important.

In fact, both veterinarians emphasize that data is most powerful when paired with strong stockmanship and practical knowledge.

But having access to better information allows producers and advisors to identify trends earlier, measure progress more effectively, and make more informed decisions.

It's one of the reasons dairy operations today are able to achieve levels of performance that were difficult to imagine a generation ago.

The Future of Dairy Veterinary Medicine Is Already Taking Shape

While Paul reflects on decades of change, Amanda is focused on what comes next.

And she's excited about the possibilities.

Artificial intelligence, automation, predictive monitoring systems, and advanced analytics are becoming increasingly common across the dairy industry.

Amanda sees enormous potential for technology to help producers identify challenges sooner, improve efficiency, and make herd management even more proactive.

Whether it's monitoring cow health, improving feed management, or identifying calving events earlier, technology is creating opportunities to support better decision-making across the farm.

But despite all the innovation, one thing remains true:

People still matter most.

Relationships Remain the Foundation

One theme that comes through clearly in both Paul's and Amanda's careers is the importance of relationships.

Technology changes.

Management systems evolve.

But trust remains essential.

Successful veterinarians don't just understand animal health. They understand people.

They build relationships with producers, employees, nutritionists, and other advisors. They learn the goals of each operation and help farms find solutions that fit their unique circumstances.

The strongest veterinary partnerships are built on communication, collaboration, and shared commitment to continuous improvement.

Those qualities have remained constant across generations.

Consistency Still Wins

After decades of working with dairy producers, Paul believes many of the fundamentals haven't changed.

Good forage.

Strong management.

Attention to detail.

Consistency.

Those principles continue to separate successful operations from struggling ones.

While new technologies and management tools can create advantages, they work best when built on a strong foundation of daily excellence.

Amanda shares a similar perspective.

Innovation is exciting, but lasting success comes from doing the basics exceptionally well.

A Mindset That Matters

Perhaps one of the most valuable lessons shared by both veterinarians isn't about dairy management at all.

It's about perspective.

Paul often talks about the importance of "living in the light"—focusing on opportunities rather than obstacles and choosing to learn from challenges rather than dwell on them.

That mindset has influenced Amanda throughout her own career and continues to shape how she approaches both veterinary medicine and life.

In an industry filled with uncertainty, challenges, and constant change, maintaining that perspective can be just as important as any management strategy.

Dr. Paul Meger and Dr. Amanda Onan represent two generations of dairy veterinary medicine connected by a shared passion for serving producers and advancing the dairy industry.

Their experiences show just how much the profession has evolved—from reactive care to proactive management, from paper records to advanced technology.

But they also remind us that some things never change.

Strong relationships, continuous learning, consistency, and a positive mindset remain at the heart of successful dairy operations.

And those lessons will continue shaping the future of dairy for generations to come.

To hear the complete discussion, stream now on Apple Podcasts or Spotify, or watch the full conversation on YouTube.