SF":2wi6dxsp said:
Sudan is a sorghum. I'm not an expert on Sudan grass, but I've been told that it can produce Prussic Acid like Johnsongrass at certain stages of growth and stress and can be toxic to cattle. Someone else may know more about this than I.
I found some additional info on the subject from a farmseeds.com
"SORGHUM x SUDANGRASS HYBRIDS
Variety: Summergrazer III
Summergrazwer III is a warm season annual that is very drought tolerant, and has rapid emergence. It produces fine stemmed, sweet succulent leaves. It is very palatable to livestock and has rapid re-growth. Summergrazer III has a crude protein of 9 to 12% and total digestable nutrients of 55 to 65%. These hybrids are adapted to the eastern half of the US except for extreme northern states.
For best results, begin grazing or hay harvest of Summergrazer III when the growth reaches about 18 to 30 inches. It is best NOT to graze closer than 4 to 6 inches. Summergrazer III should be rotationally grazed for greatest forage utilization. Avoid grazing new growth after a light frost or drought to reduce the change of prussic acid poisoning. During drougth Stress, the nitrate level should be checked to avoid nitrate toxicity.
Warning: DO NOT USE FOR HORSE PASTURAGE!
USES: Grazing cattle, green chop, hay and silage.