Johnson Grass Hay and Prussic Acid - Ask Extension
Hello,
I am trying to find out if prussic acid in stressed Johnson grass will eventually gas off after the grass has been mowed and bailed? Can John...
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Johnson Grass Hay and Prussic Acid #878991
Asked July 27, 2024, 9:58 AM EDT
Hello,
I am trying to find out if prussic acid in stressed Johnson grass will eventually gas off after the grass has been mowed and bailed? Can Johnson grass that is mowed and bailed during a summer drought be stored and safely fed to cows during the winter? If so, how long do the bales need to be stored before the risk of cyanide poisoning is gone?
Franklin County Kentucky
Expert Response
Good Morning, during a drought, johnsongrass can buildup prussic acid especially in the lower part of the stalk. However, if cut, dried, and baled, the prussic acid will dissipate out of the hay. Just give that hay at least 90 days to cure before you feed it. I hope this helps. If you have more questions, please call the Clark County Extension Office at<personal data hidden> or on my direct line of<personal data hidden>.
Thank you for your time and the information. It is appreciated.
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On Jul 29, 2024, at 9:18 AM, Ask Extension <<personal data hidden>> wrote:
You're welcome and please feel free to reach out if you have more questions. Have a great day!
