Grazingland Animal Nutrition Laboratory

01/28/2026

👉 Producers who attended the meeting and are interested in a complimentary sample analysis are encouraged to reach out to the GAN Lab directly.

📍 National Bison Association Winter Conference | Denver, CO

Dr. Doug Tolleson represented the GAN Lab during the “Decoding Bison” session alongside an outstanding group of speakers and approximately 100 attendees:

• Jeff M. Martin, Ph.D. (SDSU) – Session Chair
• Dr. Rachel Short – Building bridges between producers and NRCS (SDSU CIG)
• Dr. Philip Urso – RCN Bison Health Project and mineral requirements in bison
• Angela Lemminger – Updated bison body condition scoring (SDSU)
• Dr. Doug Tolleson – What the GAN Lab at Texas A&M University can do for bison producers

This meeting was also a meaningful opportunity to reconnect with a bison producer community that the late Dr. Jerry Stuth engaged with more than 25 years ago. The GAN Lab has a long-standing history of working with bison systems, and it was rewarding to continue that legacy.

We truly appreciated the conversations, questions, and feedback from producers, researchers, and partners.

We would be happy to follow up and continue the conversation.

"Bison are willing teachers, if we are willing students."
Dr. Jeff Martin

This morning at the 2026 National Bison Association Winter Conference we are exploring Decoding Bison with the following bison specialists:
● Dr. Jeff Martin
● Dr. Rachel Short - Building Bridges Between Producers & NRCS with the SDSU CIG
● Dr. Phil Urso - New RCN Bison Health Project at SDSU & Update on Mineral
Requirements in Bison
● Angie Lemminger - Updated Bison Body Condition Scoring Available Through SDSU
● Dr. Doug Tolleson - What the GAN Lab at Texas A&M University can do for you

01/27/2026

Going to CattleCon 2026?

👉 Make sure the Sustainability Pavilion is on your list.

It's a great space for meaningful conversations, practical tools, and organizations working to support land, livestock, and long-term resilience.

Hope to see you there! We’ll be at booth #2208.

01/23/2026

is where the beef industry meets!

We’re heading to Nashville, TN February 3–5, 2026. Stop by Booth #2208 to connect with the GAN Lab team and talk grazing nutrition and practical tools to support better pasture and rangeland management.

We can't wait to see you there!

01/15/2026

Heading to Cattle Con?

The Grazingland Animal Nutrition Lab team will be at Cattle Con in Nashville, Tennessee, and we’d love to connect with you!

Whether you’re looking to optimize your herd’s nutrition program, or just want to talk cattle nutrition, swing by our booth. Our team will be ready to answer your questions and share how we can help you get the most from your grazing operation.

See you in Nashville! 🐄

📍 Booth 2208



K.Tanguma

12/24/2025

We’ll be taking a short holiday break 🎄

The GAN Lab will be closed Dec 24 – Jan 5.

Thank you to our producers, partners, and collaborators for a great year.

Wishing you all a Merry Christmas and a joyful holiday season! 🙏✨

12/23/2025

From early mornings in the lab to long days in the field, 2025 reminded us why we do this work.

Research, outreach, collaboration, and growth! Thank you to everyone who was part of the GAN Lab journey this year.

12/22/2025

Wrapping up our South Texas Nutritional Monitoring Study with style! 🎉

Over the 6 past months, our nutritionist have been working with ranchers across South Texas, using f***l near infrared spectroscopy (FNIRS) to monitor cattle nutrition and provide data-driven grazing management recommendations. This collaborative research has empowered producers with real-time insights into their herds’ nutritional status—helping them make informed decisions about diet quality, body condition, and pasture management.

This project has been all about learning from the land, learning from the cows, and learning from each other, and we couldn’t have done it without our amazing South Texas ranching partners.

Here’s to the power of collaboration, community, and science-based management! Looking forward to sharing our findings and our next steps very soon! 🐄🌾

Turns out our nutritionist can ride scooters just as well as they conduct studies! 🛴🤩



K.Tanguma

12/17/2025

From Texas to global grazing systems 🌍

Between 1998 and 2000, GAN Lab leadership worked with partners in East Africa, including Kenya, Ethiopia, Uganda, and Tanzania, applying NIRS as part of drought early warning systems for livestock. These efforts focused on building local capacity and supporting grazing-based decision-making during periods of environmental stress.

In 2005, through a Mercy Corps/USAID project, GAN Lab expertise supported work in Mongolia to establish an NIRS laboratory at the state university and conduct feeding and grazing trials with yak, cattle, and camels.

These photos capture moments from these long-standing international collaborations and reflect the GAN Lab’s commitment to applied science, partnership, and global learning as we celebrate 30 years.

12/05/2025

🎉 30 Years of Impact! 🎉

Since 1995, the Grazingland Animal Nutrition Lab has been revolutionizing livestock health and rangeland management—one sample at a time! 🐄🌾

Our Impact by the Numbers:
✅ 4,000+ producers served nationwide
✅ 150,000+ f***l samples analyzed
✅ Global reach: Labs in Africa, South America & Mongolia
✅ Fast, accurate, non-invasive nutrition monitoring

We’re proud to provide cutting-edge NIRS technology that helps producers make informed decisions about their herds and land.

📍 Serving producers across the United States and beyond 🔬 Noninvasive testing • Rapid results • Proven accuracy



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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