A New Way to Predict Grazing Cattle Weight Gain on Rangelands From Satellite Imagery

Dec 20, 2021

By Maribel Alonso

USDA’s Agricultural Research Service (ARS) developed a unique approach to using satellite imagery to predict cattle weight gain on rangelands. By fusing multiple images over a period of time, scientists were able to monitor how forage quality changes over space and time in rangelands within the shortgrass steppe, and how this relates to the weight gain of free-ranging cattle throughout the summer grazing season.

Managing the grazing season in rangelands can be challenging due to high variability in temperature and rainfall over time. From a manager’s perspective, it is essential to know when and where forage production and quality are changing to optimize free-range livestock weight gain and meet other environmental objectives. This is not just about chasing forage quantity (total amount of vegetation biomass); it is also about looking for the highest-quality forage throughout the season.

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Video: Early Fall Colors | Scenic Ontario Road Trip!

All adventures must come to an end, but not without one more journey! Join The Wandering Shepherds as we say farewell to our cozy Calabogie cottage and take the scenic road trip home to Ewetopia Farms. Our first stop was a breathtaking hydroelectric generating station, framed by cliffs, rushing water, and brilliant fall leaves that seemed to have changed overnight. From there, we meandered along winding backroads through lakes and hills, soaking in the spectacular autumn scenery. This year, the colors seemed to arrive earlier than usual—perhaps due to the summer’s drought? Whatever the reason, it was an unforgettable display of Ontario’s fall beauty. Finally, our holiday drew to a close as we pulled back into Ewetopia Farms, ready to return to the sheep and our daily vlogs. But this trip reminded us how important it is to pause, explore, and appreciate the simple beauty around us.