Thanks to everyone that responded. I had a couple of interesting documents passed on to me that I will pass on to you. This is probably not an issue.

Page 33 on the bottom right side:

Cyanide Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review

http://www.cyantists.com/Publications/Toxicology/USFWS%20Cyanide%20Hazards.pdf


Pages 5 - 11
Anti-Quality Factors in Rangeland and Pastureland Forages

http://www.caf.wvu.edu/~forage/quality_factors/anti-quality_bulletin.pdf