Smith H J
Agriculture Canada, Health of Animals Laboratory, Sackville, New Brunswick.
Can J Vet Res. 1989 Jan;53(1):111.
During a study of larval inhibition, resumption of development of Cooperia oncophora was observed in one calf to occur over a prolonged period of time. This animal had grazed for 14 weeks, was treated with thiabendazole and stabled for eight weeks prior to grazing the same pasture for ten days in late fall. A marked increase in Cooperia egg output started about six months after restabling. Worm egg outputs persisted for about 14 months with counts of up to 1000 eggs per gram during the first eight months of this period followed by a period with low counts of 50 to 150 eggs per gram.
在一项幼虫抑制研究中，观察到一头小牛体内的牛古柏线虫发育恢复持续了很长一段时间。这头小牛放牧了14周，用噻苯达唑进行了治疗，然后在秋末再次在同一牧场放牧10天之前被关在厩中8周。重新关进厩中大约六个月后，牛古柏线虫的排卵量显著增加。虫卵排出持续了约14个月，在此期间的前八个月，每克粪便中虫卵数高达1000个，随后是每克粪便中虫卵数为50至150个的低水平期。
