Grazingland Animal Nutrition Laboratory

12/01/2025

🎉 Celebrating 30 Years! 🎉

We’re proud to celebrate three decades of research, innovation, and service in grazing livestock and wildlife nutrition!

For 30 years, we’ve been improving technology for healthier livestock, wildlife, and land resource management. Thank you to everyone who has been part of this incredible journey.

Here’s to 30 years of groundbreaking work and many more to come! 🐃🦌🐄🦬



K.Tanguma

11/27/2025

As we gather with family and friends this Thanksgiving, we want to take a moment to express our heartfelt gratitude.

We’re thankful for our dedicated staff who bring passion and expertise to their work every day. Your commitment to excellence in animal nutrition makes all the difference.

To our valued customers—thank you for trusting us with your animals’ nutritional needs. Your partnership and confidence in our services mean the world to us.

And of course, we’re grateful for all the animals we have the privilege of serving. They’re the heart of what we do, and they make every day at the lab meaningful and rewarding.

Wishing you and yours a wonderful Thanksgiving filled with warmth, gratitude, and good company.

🦃🍂

11/26/2025

Our very own Dr. Doug Tolleson, Director of the Grazingland Animal Nutrition Lab, just returned from an incredible experience in Monterrey, Nuevo Leon! Dr. Tolleson was invited by Dr. Jesús Velazco, Director of Perishables at H-E-B México, to participate in a 3-day intensive workshop as part of their ongoing series for beef producers focused on Animal Welfare, Sustainability, and Traceability. 🌾

Dr. Tolleson presented on: “Managing rangeland and animal resources to meet ranching sustainability goals”

Through a dynamic combination of lectures, interactive group discussions, and hands-on classroom exercises, Dr. Tolleson worked with an outstanding group of 25 participants including:
• Ranchers
• Feedlot and dairy operators
• Feed and animal health suppliers

📍 The workshop was held at the Monterrey Tech campus, where participants dove deep into three key areas:
✓ Basic rangeland resources
✓ Grazing animal (livestock and wildlife) management
✓ Practical economic and ecological sustainability.

The group was highly engaged, asking challenging questions and fostering collaborative learning. As Dr. Tolleson noted: “I learned more from them than they did from me. We all learned from each other. Win-Win.”

A huge thank you to Dr. Velasco and his team for the invitation, logistics, and exceptional hospitality. Plans are already underway for next year’s workshop! 🤝

# CrudeProtein

K.Tanguma

11/04/2025

This past Tuesday we hosted the South Texas Grazingland Nutritional Monitoring Workshop in Kingsville, Texas! 🤠🌾This collaborative event brought together students, professors, ranchers, and members of the public for a day of learning that included indoor speaker sessions, hands-on outdoor field stations with NIRS demonstrations, soil stations, rain simulator, body condition scoring, plant identification, and a student poster session showcasing ongoing research.🌾🔬

Thank you to our speakers from the Dick and Mary Lewis Kleberg College of Agriculture and Natural Resources at Texas A&M University-Kingsville, the King Ranch Institute for Ranch Management, and Texas Native Seeds.

A heartfelt thank you to the local ranchers we’ve been working with over the past few months, who joined us for this workshop. Your experience and perspectives enriched the discussions throughout the day, and we’re grateful to have you as partners in advancing rangeland stewardship in South Texas.🌾

Here’s to learning from the land, learning from the cows, and learning from each other!🐂🌾



P.C: Kimberly Tanguma

10/29/2025

10/24/2025

Our Director, Dr. Doug Tolleson, is in McGregor, Texas, conducting a crime scene investigation simulation with our portable NIR instrument. The scenario involves cattle theft where perpetrators either brand unbranded cattle or alter existing brands to disguise ownership.

Dr. Tolleson collects multiple measurements, including the height and width of brands, to determine the original brand size based on cattle growth curves. The portable NIR spectroscopy provides an additional layer of analysis by examining the biochemical composition of the brand tissue. As brands heal over time, their chemistry undergoes detectable changes that the NIR instrument can identify, providing valuable forensic evidence.

Dr. Tolleson has been developing and refining this technique over years of research, demonstrating the practical application of spectroscopy technology in livestock forensics and theft prevention.🐂🕵️‍♂️

P.C: Kimberly Tanguma

10/16/2025

Don't forget to register for our upcoming workshop in Kingsville, TX. Last day to register is October 18, 2025!

https://docs.google.com/forms/d/e/1FAIpQLSfSGyMHlIWG5PLF2m3XZpnzld0VxKg56FpXzqniGjFVQc2geQ/viewform?usp=header

🐄 Join us for an incredible learning opportunity! 🌾

The Grazingland Nutritional Monitoring Study Workshop is coming to South Texas on October 28, 2025 at the Caesar Kleberg Wildlife Center in Kingsville,Tx!

Whether you’re a rancher, student, or simply passionate about sustainable agriculture, this hands-on workshop offers something for everyone:

✅ Soil health and plant relationships
✅ Animal nutrition
✅ Interactive field demonstrations
✅ Virtual fencing technology
✅ FNIRS/NutBal systems

“Learning from the Land, Learning from the Cows, Learning from Each Other” - that’s what this day is all about! You’ll get practical, real-world techniques you can apply.

🗓️ Registration deadline: October 18, 2025
📱 Scan the QR code or contact us to secure your spot!

Space is limited, so don’t wait!

📞 254-774-6134
📧 [email protected]
📧[email protected]
📧[email protected]



P.C: Kimberly Tanguma

10/03/2025

📊 Great news!

Your GAN Lab reports on Nutbal Online now include a Body Condition Score (BCS) Projection Chart.

This new feature gives you a clearer view of how your herd’s condition may change over the next few weeks. Each dot shows the projected BCS, while the bars highlight the possible range around those estimates. The further out the projection, the wider the range becomes.📈

These ranges are a reminder that the results are guides, not guarantees. It’s a practical tool designed to help you plan ahead while accounting for natural variation in grazing systems. ✅

👉 Log into your Nutbal Online account today to explore this new feature and make the most of your reports!

10/02/2025

09/25/2025

🐄 Join us for an incredible learning opportunity! 🌾

The Grazingland Nutritional Monitoring Study Workshop is coming to South Texas on October 28, 2025 at the Caesar Kleberg Wildlife Center in Kingsville,Tx!

Whether you’re a rancher, student, or simply passionate about sustainable agriculture, this hands-on workshop offers something for everyone:

✅ Soil health and plant relationships
✅ Animal nutrition
✅ Interactive field demonstrations
✅ Virtual fencing technology
✅ FNIRS/NutBal systems

“Learning from the Land, Learning from the Cows, Learning from Each Other” - that’s what this day is all about! You’ll get practical, real-world techniques you can apply.

🗓️ Registration deadline: October 18, 2025
📱 Scan the QR code or contact us to secure your spot!

Space is limited, so don’t wait!

📞 254-774-6134
📧 [email protected]
📧[email protected]
📧[email protected]



P.C: Kimberly Tanguma