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The pig as an intermediate host for Taiwan Taenia infection

Published online by Cambridge University Press:  05 June 2009

P. C. Fan ,
W. C. Chung ,
C. Y. Lin  and
C. C. Wu
P. C. Fan
Affiliation:
Department of Parasitology, National Yangming Medical College, Taipei, Taiwan, Republic of China
W. C. Chung
Affiliation:
Department of Parasitology, Taipei Medical College, Taipei, Taiwan, Republic of China
C. Y. Lin
Affiliation:
Department of Parasitology, National Yangming Medical College, Taipei, Taiwan, Republic of China
C. C. Wu
Affiliation:
Department of Parasitology, National Yangming Medical College, Taipei, Taiwan, Republic of China
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Abstract

Eggs (1000–100 000/animal) of Taiwan Taenia were inoculated per os into 14 Small-Ear-Miniature (SEM), 19 Landrace-Small-Ear-Miniature (L-SEM), and 5 Duroc-Yorkshire-Landrace (DYL) pigs. These animals were sacrificed 7–107 days after infection. Thirty-four pigs were found to be infected with Taiwan Taenia cysticerci and the infection rates of SEM, L-SEM, and DYL were 86%, 89% and 100% respectively. The cysticerci recovery rates of SEM, L-SEM and DYL pigs were 27·2%, 1·7% and 0·27% respectively. Cysticerci were recovered only from the livers and none were found in muscles, viscera or other parts of the carcasses. More cysticerci were located in the liver parenchyma (71%) than on the liver surface (29%). Taiwan Taenia cysticerci were smaller than those of classical T. saginata or T. solium. Moreover, Taiwan Taenia cysticerci had 2 rows of rudimentary hooklets on the scolex. The results of this study indicate that young pigs are good intermediate hosts for Taiwan Taenia and that the SEM pig is a satisfactory host for experimental studies with this tapeworm. These results were similar to other studies with different geographic strains of the T. saginata-like tapeworm in the Far East. These strains appear to be the same and possibly a new species.

Keywords

CysticercusmorphologyrostellumTaeniapigTaiwan
Type
Research Article
Information
Journal of Helminthology , Volume 64 , Issue 3 , September 1990 , pp. 223 - 231
Copyright
Copyright © Cambridge University Press 1990

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