Alva Review-Courier -

Prussic acid toxicity explained as recent drought ramps up risk


(OSU Extension) – Ranchers turning cattle onto pastures with new forage growth this season should watch out for prussic acid toxicity, a condition fatal to livestock and commonly linked to consumption of Johnsongrass.

In counties of Oklahoma that recently suffered from extreme drought conditions, ranchers are reporting cattle deaths suspected from prussic acid toxicity.

“One of our producers found a calf and cow dead on a small patch of Johnsongrass,” said Dana Bay, Oklahoma State University Extension agriculture educator in Ellis County. “We’ve gotten a lot of calls about testing...

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