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Experimental infection with Taenia saginata (Poland strain) in Taiwanese pigs

Published online by Cambridge University Press:  05 June 2009

P. C. Fan ,
W. C. Chung ,
C. Y. Lin  and
Z. S. Pawlowski
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
Z. S. Pawlowski
Affiliation:
Clinic of Parasitic and Tropical Diseases, Medical Academy of Poznan, Poland
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Abstract

Two 22-day-old Landrace-Small Ear Miniature (L–SEM) pigs, five 45 to 66-day-old Small Ear Miniature (SEM) pigs, and one 16-day-old Holstein calf were each fed 1000, 3000 or 10000 Taenia saginata (Poland strain) eggs respectively and killed 34–77 days after inoculation. Four of the five SEM pigs and the Holstein calf were susceptible to this parasite. However, two L–SEM pigs and one SEM pig remained negative. The cysticerci recovery rates for the SEM pig and Holstein calf were 36% and 3%. respectively. All cysticerci from the SEM pigs were found in the livers, more in the parenchyma (89%) than on the surface (11%). Only eleven cysticerci in two SEM pigs were mature and the remainder were either immature, degenerated or calcified. The cysticerci in the calf were distributed throughout the body: leg muscles (248), heart (27), tongue (17), intercostal muscles (14), diaphragm (5), kidney (I) and liver (1). Most (299) of the cysticerci were mature, one was immature and 13 were degenerated or calcified. The length, width, diameter of the protoscolex and sucker of the cysticerci from the calf were larger than those from the SEM pigs. However, the diameter of the rostellum of the latter was slightly larger than the former. Hooklets were not found on any mature cysticercus recovered. The results of the present study provide evidence that the SEM pig can he used as an experimental intermediate host for T. saginata.

Keywords

CysticercuspigPolandTaenia saginataCestoda
Type
Research Article
Information
Journal of Helminthology , Volume 66 , Issue 3 , September 1992 , pp. 198 - 204
Copyright
Copyright © Cambridge University Press 1992

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