| DISORDER: | Photosensitization | ||
| Plant Species: | Kleingrass | ||
| Causes: | Saponin, which is a photodynamic agent. | ||
| Mode of Action: | UV light induces the development of an activated state in the saponin which is responsible for all damage. | ||
| Animal Symptoms: | Reddening of skin followed by swelling, blisters, and sloughing of the skin. In severe cases it can lead to death. | ||
| Conditions: | Occurs in sheep. | ||
| Treatment: | Remove animal from infected pasture (provide shade & feed). | ||
| Prevention: | Don’t graze sheep or horses on Kleingrass. | ||
| Notes: | Horses may develop liver lesions, but not photosensitization. | ||
