Eighty three carcasses of pigs were examined at three abattoirs in Mos
hi, Arusha and Mbulu in northern Tanzania. Taenia solium metacestodes
were found in all the three abattoirs with an overall prevalence of 13
.3%. During routine meat inspection in Kiboroloni, Moshi 6.2-6.9% of t
he pigs were found to harbour T. solium metacestodes. The mean number
of hooks on the protoscolices was 27 and the length of the small hooks
varied from 105 mm to 130 mu m while that of the larger hooks varied
from 168 mm to 174 mm confirming that the cysts were metacestodes of T
. solium. Although cystlike lesions were recovered from livers of both
pigs and cattle, no hooklets of sizes in the range of 5-37 mm were fo
und indicating that no Taiwan Taenia metacestodes were recovered durin
g carcass examination.