Farmers call for French blockades over cow disease cullLSD is a highly contagious bovine disease which is transmitted mainly by fly-bites. Elsewhere in the south, farmers have dumped manure outside government buildings and blocked roads. Angry French farmers are calling for more protests over the government-backed slaughter of cattle herds affected by so-called Lumpy Skin Disease (LSD). "Right now we are unable to tell the difference between a healthy animal and a symptomless animal carrying the virus. Several French farming sectors are in deep crisis, from wine-growers hit by falling consumption to poultry farmers hit by avian flu.