NDSU Agriculture and Extension


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Keep Livestock Away from Blue-Green Algae

Blue Green Algae is toxic
Photo by NDSU
With hot, dry and calm days comes the threat of cyanobacteria, or blue-green algae, which can be toxic to livestock and wildlife.

This algae often is found in stagnant ponds or dugouts with elevated nutrient levels. Live cyanobacteria are green. It turns blue after it dies and dries on the surface or shoreline.

Gerald Stokka, Extension veterinarian and livestock stewardship specialist, says symptoms of cyanobacteria poisoning can include weakness, staggering, difficulty in breathing, convulsions and ultimately death.

Tips for Preventing Cyanobacterial Poisoning in Livestock
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