One liter of rumen fluid containing 4.7 × 104 ciliates/ml, representing four genera including nine species of ciliates from a Japanese sika deer was inoculated into two unfaunated Japanese shorthorn calves. Two weeks after inoculation, all species originally present in the inoculum were subsequently detected in the rumen fluid of one or both calves. Ciliate densities ranged from 105–106 cells/ml over the remainder of the 33-wk experiment. The inoculum contained Diplodinium rangiferi. which lacks caudal appendages, as is characteristic for the species. However, three weeks later, the rumen fluid of both calves contained D. rangiferi, which possesses caudal appendages varying from a single spine to multiple spines with a complicated furcate appearance. The caudal spines of D. rangiferi did not disappear during the experiment, even when the diet of the calves was switched to the ration of sika deer from which the inoculum was obtained.
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1 January 2002
Establishment of a Spinated Type of Diplodinium rangiferi by Transfaunation of the Rumen Ciliates of Japanese Sika Deer (Cervus nippon centralis) to the Rumen of Two Japanese Shorthorn Calves (Bos taurus taurus)
SOICHI IMAI,
MITSUTO MATSUMOTO,
AKIRA WATANABE,
HIROSHI SATO
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The Journal of Eukaryotic Microbiology
Vol. 49 • No. 1
January 2002
Vol. 49 • No. 1
January 2002
Ciliate composition
deer
host specificity
rumen protozoa
transfaunation