THE STUDIES ON THE POISONOUS PLANTS OF TRAKYA REGION RELATING VETERINARY TOXICOLOGY I. The spread of poisonous plants in Trakya region and qualitative determination of the active substances they include

Poisonous plants have deteriorated the livestock sector in the past and are still among the current problems of the Trakya Region where livestock is densly located. It is reported that, in herbal poiso­ning not only the species of the plant but also the identification and characterisation of included active subs­tances is very important in diagnose and treatment. For this, it was tried to practically determine the spread of poisonous plants in Trakya Region and qualitative determination of the active substances they include. A study was conducted in this region, mainly around the places with dense livestock for two years and a map showing the spread of poisonous plants was prepared. It has been observed by field trials that, extremely poisonous plants such as Arum italicum. Datura stramonium. Echalliitme laterium, Euphorbia spp., Hypericum perfora­tum, Papaver rhoeas. Sinapis arvensis. Sorghum halepense, Tribulus terrestris were widespread in region. Iso­lation and identification of active agents included in Arum italicum, Coichicum autumnale, Conium macula-turn. Datura stramonium. Digitalis ferruginea, D. lanata, D. viridiflara., Equisetum spp., Hypericum perfora­tum. Hyoscyamus albus, Melilotus officinalis, Nerium oleander, Quercus spp.,  Papaver rhoeas. Solanum nig­rumre Solanum dulcamara which were gathered from different places of Trakya Region were done by colour reaction and Thin Layer Chramatography (TLC) techniques and most pratical methods were determined for di­agnosis of herbal poisonoings.