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Related Experiment Videos

Drought increases forage nitrate and cyanide.

J A Pickrell1, F W Oehme, S R Hickman

  • 1Department of Clinical Sciences, Kansas State University, Manhattan 66506-5606.

Veterinary and Human Toxicology
|June 1, 1991
PubMed
Summary
This summary is machine-generated.

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Drought significantly increased nitrate and cyanide levels in animal forage, posing health risks. Elevated concentrations in feed were observed during dry years, impacting livestock safety.

Area of Science:

  • Agricultural Science
  • Environmental Science
  • Veterinary Medicine

Background:

  • Drought conditions can alter soil chemistry and plant physiology.
  • Elevated nitrate and cyanide levels in forage pose toxicity risks to livestock.

Purpose of the Study:

  • To assess the impact of drought on nitrate and cyanide concentrations in animal forage.
  • To compare toxin levels in forage during normal rainfall versus drought periods.

Main Methods:

  • Comparative analysis of forage samples collected during wet (1986-87) and drought (1988-89) years.
  • Quantification of nitrate and cyanide concentrations in ppm (parts per million).

Main Results:

  • Nitrate and cyanide concentrations of concern increased significantly during drought years (1988-89) compared to normal rainfall years (1986-87).

Related Experiment Videos

  • In 1989, 25-33% of samples showed health concern levels for nitrate or cyanide, with 14-19% reaching levels for acute respiratory distress.
  • Drought exacerbated forage shortages by increasing toxicant levels in available feed.

    • Conclusions:

    • Drought conditions are linked to increased nitrate and cyanide in animal forage, posing significant health risks.
    • Effective management strategies should focus on controlling groundwater nitrate and its uptake by plants to mitigate risks.