title: Effect of some abiotic factors on the survival of dicrocoelium dendriticum eggs in laboratory conditions.
abstract: In the present work the results obtained from the study of the effect of temperature, RH, UV radiation and day-night thermal variations, in controlled laboratory conditions, on the survival of D. dendriticum eggs in sheep faeces are described. Mortality was seen to be maximum with a RH of 75-80% and temperatures higher than 18 degrees C. The results are compared with those obtained in natural conditions. It is suggested that the final cause of the mortality of the eggs both in laboratory and natural conditions could be the action of some microorganisms.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D004013:Dicrocoelium / Q000502:physiology* / Q000528:radiation effects; D005243:Feces / Q000469:parasitology; D005260:Female; D006813:Humidity; D010063:Ovum / Q000502:physiology; D012756:Sheep / Q000502:physiology; D013696:Temperature; D014466:Ultraviolet Rays