Cases of chronic intoxication with Poison Hemlock (Conium maculatum) in calves

Clinical observations of 20-year duration (1993 t? 2013) on chronic intoxication with Poison Hemlock (Conium maculatum) in newborn calves are described. This type of intoxication is manifested by birth of calves with multiple congenital contractures (MCC) of fore limbs during the autumn-winter period (most commonly in November and December). The effect of immobilization of limbs by splints is investigated, and the course of disease is monitored. The present survey was made on the basis of several sporadic cases (n=14) and one massive outbreaks (n=8).