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

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 10,000 Taenia saginata (Poland strain) eggs respectively and killed 34-77 days after inoculation. Four of the five SEM pigs and...

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Bibliographic Details
Published inJournal of helminthology Vol. 66; no. 3; pp. 198 - 204
Main Authors Fan, P.C, Chung, W.C, Lin, C.Y, Pawlowski, Z.S
Format Journal Article
LanguageEnglish
Published England 01.09.1992
Subjects
Animals
Cysticercosis - parasitology
Cysticercosis - veterinary
Cysticercus - isolation & purification
Cysticercus - pathogenicity
Disease Susceptibility
experimental infection
intermediate hosts
Kidney - parasitology
Liver - parasitology
medical parasitology
Muscles - parasitology
Poland
Swine
Swine Diseases - parasitology
Swine, Miniature - parasitology
Taenia saginata
Taiwan
Tongue - parasitology
Poland
Taiwan
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Summary: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 10,000 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 (1) 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 be used as an experimental intermediate host for T. saginata.
ISSN:0022-149X
1475-2697
DOI:10.1017/S0022149X00014565