Aspergillus flavus Producing Aflatoxins Isolated from Materials of Commercial Feed in Japan

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
44-04-12.pdf901.52 KB

To investigate both aflatoxin contamination in feed produced in Japan and the distribution and movement of aflatoxin-producing fungi in the feed, a survey experiment was performed. Aspergillus fungi were isolated from imported Sudan grass hay, a material used to make total mixed ration (TMR) in Japan. HPLC analysis showed that one isolate produced aflatoxins B1 and B2. Isolates were identified as A. flavus and A. terreus from their morphologies, rDNA-ITS sequences and aflatoxin production. No aflatoxins were detected in the Sudan grass hay source of the isolates or the fermented TMR made from the Sudan grass as one of the raw materials. The fermentation quality of the TMR was good after ensilage for over 60 days, as indicated by increased lactic acid and decreased pH. Only lactic acid bacteria and Bacillus survived in the fermented TMR; no fungi or yeasts were detected. Fermentation is important in preventing aflatoxin contamination of silage.

作成者 UEGAKI Ryuichi TSUKIBOSHI Takao CAI Yimin

imported hay


total mixed ration

公開者 Japan International Research Center for Agricultural Sciences
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 421
終了ページ 427
DOI 10.6090/jarq.44.421
権利 Japan International Research Center for Agricultural Sciences
言語 eng