Nutrition disorders in grazing sheep: Intoxications

During grazing sheep can have access to a wide variety of poisonous plants, mycotoxins, heavy metals and/or biologically active elements responsible for an ample range of deleterious effects and significant economic losses in flocks worldwide, especially those reared in exten- sive o semi-intensive conditions. Sola dosis facit venenum the classic toxicology maxim credited to Paracelsus, illustrates well the fact that the some of compounds mentioned above can cause intoxication if consumed acutely or chronically in excess.