Abstract
The aim of the study was to carry out a complete life-cycle of the tapeworm Spirometra (Cestoda: Pseudophyllidea) under experimental conditions in the laboratory. A total of 7 lions from Tarangire National Park were examined their feces for presence of Spirometra eggs. Two methods were used to collect feces of lions: collection of feces from the ground where has been deposited and manual removal of feces from the rectum of the lion after immobilization. Eggs collected from the feces were found to be ovoid, tapered at both ends, the shell is smooth, dark brown in color and the embryo is visible within the egg shell. The measurements were in the range of length 52-75 μm and the width between 30-45 μm. The means were length 67.8 ± 3.71 and width 32 2± 3.65 μm. The eggs collected conforms with the eggs of Spirometra species.
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