Sotiraki S T, Leontides L S, Himonas C A
Laboratory of Parasitology and Parasitic Diseases, Faculty of Veterinary Medicine, Aristotelian University, Thessaloniki, Greece.
J Helminthol. 1999 Dec;73(4):337-9.
The effect of transportation and confinement stress on Dicrocoelium dendriticum egg production was investigated. Sheep passing a minimum of 200 eggs g-1 of faeces were selected from a naturally infected flock. A group of six ewes (group A) was transferred to the laboratory premises and kept indoors for 28 days, while another group (B) of six ewes remained on pasture and was used as a control. Faecal examinations and egg counting were performed weekly, on all sheep, from one week before to 28 days after the transportation of the animals. Comparison of faecal egg counts between groups revealed higher (P < 0.01) counts in transported sheep sampled on days 7, 14 and 28 of the trial. Furthermore, egg counts obtained from sheep that were transferred remained consistently high while the ones from sheep that remained on pasture showed significant variation. Therefore, it is concluded that stress-inducing factors, such as transportation and confinement may enhance egg production of D. dendriticum.
研究了运输和圈禁应激对枝双腔吸虫产卵的影响。从自然感染的羊群中挑选出每克粪便中至少排出200个虫卵的绵羊。将一组6只母羊（A组）转移到实验室场地并在室内饲养28天，而另一组6只母羊（B组）留在牧场作为对照。在动物运输前一周至运输后28天，每周对所有绵羊进行粪便检查和虫卵计数。两组之间粪便虫卵计数的比较显示，在试验的第7天、14天和28天采集的运输绵羊的虫卵计数较高（P < 0.01）。此外，转移绵羊的虫卵计数一直很高，而留在牧场绵羊的虫卵计数则有显著变化。因此，得出结论，运输和圈禁等应激诱导因素可能会提高枝双腔吸虫的产卵量。
