García Romero C, Valcárcel F, Rojo Vázquez F A
Laboratorio de Parasitología Animal (S.I.A) Toledo, Spain.
Zentralbl Veterinarmed B. 1997 Sep;44(7):437-43. doi: 10.1111/j.1439-0450.1997.tb00994.x.
The pattern of pasture contamination and the influence of some climatic factors on the development of ovine Trichostrongyles have been studied in dry pastures of Castilla-La Mancha (central Spain) during a 3-year period (1986-1988). The main identified genera were Ostertagia and Trichostrongylus, followed by Haemonchus, Cooperia and Nematodirus. Two peaks of pasture contamination were detected: from mid-winter to early-spring and from mid-autumn to early-winter. No significant differences in this pattern were observed during the 3 years except Haemonchus (1986-1988, P < 0.05; 1987-1988, P < 0.001). Seasons differed significantly (spring-autumn, P < 0.05; summer-the rest of the year, P < 0.001). The temperature was negatively correlated with the level of pasture infectivity (except for Trichostrongylus); however, the rainfall was positively correlated with pasture infectivity.
在1986年至1988年的三年时间里，对西班牙中部卡斯蒂利亚 - 拉曼恰的干旱牧场中牧草污染模式以及一些气候因素对绵羊毛圆线虫发育的影响进行了研究。鉴定出的主要属为奥斯特他属和毛圆线虫属，其次是血矛线虫属、古柏线虫属和细颈线虫属。检测到牧草污染有两个高峰：从冬中到春初以及从秋中到冬初。除血矛线虫属外（1986 - 1988年，P < 0.05；1987 - 1988年，P < 0.001），在这三年中这种模式没有显著差异。季节间差异显著（春季 - 秋季，P < 0.05；夏季 - 一年中的其他时间，P < 0.001）。温度与牧草感染性水平呈负相关（毛圆线虫属除外）；然而，降雨量与牧草感染性呈正相关。
