KANSAS CITY, Mo. (AP) - Ranchers are being urged to watch what
they feed their cattle because some drought-stressed plants that
were harvested for animal feed or whose stalks remain in fields
contain dangerous levels of nitrates.
University extension officials in Kansas and Missouri said high
nitrate levels can cause pregnant cows to miscarry or kill adults.
Animals that eat the nitrate-laden plants stumble and appear to be
suffocating because nitrate poisoning inhibits the ability of blood
to transport oxygen.