González-Lanza C, Manga-González M Y, Del-Pozo-Carnero P
Unidad Estructural de Parasitología Animal, Consejo Superior de Investigaciones Científicas (CSIC), León, Spain.
Parasitol Res. 1993;79(6):488-91. doi: 10.1007/BF00931589.
Dicrocoelium dendriticum egg output in cattle from five locations of the Porma river basin (León Province, Northwest Spain) was studied at monthly intervals between March 1986 and March 1987. We found D. dendriticum eggs in 37.64% of the 1251 samples examined, and the number of eggs per gram (epg) ranged from 10 to 1000 (average, 41.65 +/- 2.73). The main egg-elimination period, for prevalence, was autumn-winter. The average epg values were quite similar during all months except March, when the maximum was detected. The infection prevalence increased in cattle aged up to 2 years and then a slight, gradual decrease was observed with increasing host age. The average epg values ranged from 40.08 +/- 3.24 to 48.33 +/- 12.42 in all age groups except the oldest animals, for which the figures were lower. The rate of egg elimination was higher in animals that came from locations situated at a greater altitude.
1986年3月至1987年3月期间，每月对西班牙西北部莱昂省波马河流域五个地点的牛体内的枝双腔吸虫虫卵排出情况进行研究。在所检查的1251份样本中，37.64%发现有枝双腔吸虫虫卵，每克粪便中的虫卵数（epg）为10至1000个（平均为41.65±2.73）。就流行率而言，主要的排虫期为秋冬季节。除3月检测到最大值外，其他月份的平均epg值相当相似。2岁以下牛的感染率上升，之后随着宿主年龄的增加，感染率略有逐渐下降。除最老的动物组外，所有年龄组的平均epg值在40.08±3.24至48.33±12.42之间，而最老动物组的数值较低。来自海拔较高地区的动物排虫率更高。
