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1 August 2000 EXPERIMENTAL TRICHINELLOSIS IN REINDEER
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Abstract

Six female reindeer calves were inoculated intraruminally with various doses of Trichinella muscle larvae. Four calves were inoculated with T. nativa, receiving 15,000 (n = 1), 5,000 (1), and 2,500 (2) larvae each. Two calves were inoculated with 5,000 T. spiralis larvae each. Blood samples were collected twice per week for total white blood cell (WBC) and differential counts and for serology using enzyme-linked immunosorbent assay (ELISA) based on T. spiralis excretory–secretory antigen. On day 56, the calves were slaughtered and muscle samples were examined according to the standard digestion method for Trichinella larvae. Blood samples were also collected twice a week from 4 uninoculated, but otherwise similar, reindeer calves corralled separately. Both the total WBC and eosinophil counts of the inoculated animals were, on average, higher during the experimental period. All the inoculated calves seroconverted, showing an increase in the optical density (OD) in the ELISA starting between day 23 and day 27 postinoculation. Very few muscle larvae (<0.08 larvae/g [lpg]) were to be found from the animals inoculated with T. nativa, but about 4 and 6 lpg were recovered from the masseter muscles of those inoculated with T. spiralis.

Antti Oksanen, Leena Oivanen, Eija Eloranta, Taneli Tirkkonen, and Kjetil Åsbakk "EXPERIMENTAL TRICHINELLOSIS IN REINDEER," Journal of Parasitology 86(4), (1 August 2000). https://doi.org/10.1645/0022-3395(2000)086[0763:ETIR]2.0.CO;2
Received: 11 August 1999; Accepted: 1 November 1999; Published: 1 August 2000
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