McKellar Q, Duncan J L, Armour J, Lindsay F E, McWilliam P
Res Vet Sci. 1987 Jan;42(1):29-34.
Calves infected by surgical transplantation of adult Ostertagia ostertagi had raised levels of plasma pepsinogen and those in which the largest number of worms established also had elevated plasma gastrin concentrations. Despite the elevated plasma pepsinogen values, the abomasal pH of the animals did not change significantly, and there was no significant difference in the percentage establishment of adult parasites in calves previously infected with O ostertagi third stage larvae and those which had been maintained parasite-naive before transplant.
通过外科移植成年奥斯特他线虫而感染的犊牛，其血浆胃蛋白酶原水平升高，并且体内寄生蠕虫数量最多的犊牛，其血浆胃泌素浓度也升高。尽管血浆胃蛋白酶原值升高，但动物的皱胃pH值没有显著变化，并且在先前感染过奥斯特他线虫第三期幼虫的犊牛和在移植前未感染过寄生虫的犊牛中，成年寄生虫的定植百分比没有显著差异。
