反芻胃内繊毛虫類(貧毛目)の粒食に伴う経口的溶液状物質の摂取について〔英文〕

概要

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Rumen ophryoscolecid ciliates were examined to know whether or not they ingest significant amounts of dissolved nutrients orally in association with engulfment of particulate substances such as potato starch and carbon powder which were known to be easily ingested orally by the ophryoscolecid ciliates. Concentration of non-protein nitrogen in the medium with or without particulate substances was compared after incubation of the protozoa to assess the degree of consumption of dissolved casein. Gas production from glucose during anaerobic incubation of the protozoa was the criterion for the oral ingestion of the fermentative solutes. The results showed that neither the addition of potato starch nor carbon particles enhanced the metabolism in question, suggesting that rumen ophryoscolecid ciliates did not ingest or failed to utilize glucose and casein given in dissolved form.
社団法人日本畜産学会の論文