Thursday, 26 November 2015
Most farmers associate Facial Eczema with peeling skin but this is just the tip of the iceberg as far as production losses are concerned. The main damage cause by sporidesmin, a mycotoxin produced by the fungus Pithomyces chartarum, occurs in the bile ducts of the liver. Extensive liver damage has been occurring for at least 2 weeks by the time signs of photosensitivity occur, and only about a tenth of the cows with liver damage will show any signs of photosensitivity. Facial Eczema can cost our dairy industry as much as $100 million in a high challenge year.
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