Manure samples arrive at the Grazing Animal Nutrition Lab at the Texas A&M AgriLife Research & Extension Center. The manure samples are analyzed to show producers the nutrient quality of their forages. Thousands of samples collected over the past 20 years have shown long-term declines in nutritional value in native forages on America’s grasslands. Texas A&M AgriLife Extension Service photo by Adam Russell
Manure samples arrive at the Grazing Animal Nutrition Lab at the Texas A&M AgriLife Research & Extension Center. The manure samples are analyzed to show producers the nutrient quality of their forages. Thousands of samples collected over the past 20 years have shown long-term declines in nutritional value in native forages on America’s grasslands.

Research shows protein on U.S. native grasslands in decline

Research outlines the falling dietary value of forages on unimproved native rangelands in the U.S. over the past two decades due to nutrient losses associated with grazing and changing climate.

There is an alarming trend on America’s rangelands due to grazing and changing climate, and it’s already costing producers almost $2 billion annually, according to recently published work by Texas A&M AgriLife Research scientist Dr. Jay Angerer.

Angerer, an AgriLife Research rangeland ecologist at the Texas A&M AgriLife Research & Extension Center in Temple, Texas, recently co-published “Long-Term Declines in Dietary Nutritional Quality for North American

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