Seaman J T, Turvey W S, Ottaway S J, Dixon R J, Gilmour A R
New South Wales Department of Agriculture and Fisheries, Agricultural Research and Veterinary Centre, Orange.
Aust Vet J. 1989 Sep;66(9):279-85. doi: 10.1111/j.1751-0813.1989.tb13952.x.
A field grazing trial was undertaken to monitor the health and production of crossbred sheep grazing pasture where Echium plantagineum constituted a considerable proportion of the available forage. The trial, conducted for 19 months over successive grazing seasons, demonstrated a significant difference in production, with sheep on the E. plantagineum pasture being lighter and growing less wool compared with sheep on Echium-free pasture. No mortalities involving pyrrolizidine alkaloid poisoning were recorded in sheep grazing E. plantagineum, although there was histological evidence of moderately severe liver damage associated with high liver copper concentrations in at least one sheep following the grazing of large quantities of the plant.
进行了一项野外放牧试验，以监测杂交绵羊在以白花羽扇豆占可用草料相当比例的牧场上的健康状况和生产性能。该试验在连续的放牧季节中进行了19个月，结果表明生产性能存在显著差异，与在无白花羽扇豆的牧场上的绵羊相比，在白花羽扇豆牧场上的绵羊体重较轻，产毛量较少。在放牧白花羽扇豆的绵羊中，没有记录到涉及吡咯里西啶生物碱中毒的死亡情况，尽管有组织学证据表明，至少有一只绵羊在大量采食该植物后，肝脏出现中度严重损伤，且肝脏铜浓度较高。
