Kennedy M J
Alberta Agriculture, Animal Health Laboratories Branch, Edmonton, Canada.
J Parasitol. 1993 Dec;79(6):866-9.
The eyes from 410 beef cattle grazing 6 range pasture zones in Alberta were dissected and examined for species of Thelazia. Thirty-eight (9.3%) contained eyeworms: 25 (6.1%) contained Thelazia skrjabini alone, 3 (0.7%) contained Thelazia gulosa alone, and 10 (2.4%) had a mixed infection of T. skrjabini and T. gulosa. Prevalence was related to the type of pasture. The prevalence was lower in cattle grazing short- and mid-grass pastures (zones 1, 2; 0% and 1.5%, respectively) than those grazing transitional or aspen parkland pastures (zones 3, 5; 7.4% and 6.2%, respectively) or rough fescue or woodland type pastures (zones 4, 6; 11.3% and 18.4%, respectively). The data suggest that prevalence is related to pasture type that limits the number of its vector, Musca autumnalis.
对来自阿尔伯塔省6个牧场放牧的410头肉牛的眼睛进行了解剖，并检查了吸吮线虫的种类。38头（9.3%）眼睛中含有眼虫：25头（6.1%）仅含有斯氏吸吮线虫，3头（0.7%）仅含有具齿吸吮线虫，10头（2.4%）同时感染了斯氏吸吮线虫和具齿吸吮线虫。患病率与牧场类型有关。在矮草和中草牧场（1区、2区；患病率分别为0%和1.5%）放牧的牛的患病率低于在过渡性或白杨林牧场（3区、5区；患病率分别为7.4%和6.2%）或粗茎羊茅或林地型牧场（4区、6区；患病率分别为11.3%和18.4%）放牧的牛。数据表明患病率与限制其传播媒介秋家蝇数量的牧场类型有关。
