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NTIS 바로가기한국초지조사료학회지 = Journal of the Korean Society of Grassland and Forage Science, v.31 no.4, 2011년, pp.451 - 462
성하균 ((주)애드바이오텍) , 이종경 (농업기술실용화재단) , 서성 (농촌진흥청 국립축산과학원)
The purpose of this study was to investigate fungi and mycotoxin contamination of the rice straw bale silage in Korean. It was tested the 33 samples of rice straw round bale silage with various condition which fed cattle in the farm. The level of fungal contamination was
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핵심어 | 질문 | 논문에서 추출한 답변 |
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곰팡이에 오염된 볏짚 사일리지 같은 조사료의 급여 시 어떤 문제가 발생하는가? | 곰팡이에 오염된 볏짚 사일리지 같은 조사료는 기호성이 떨어지고 섭취량도 감소되며, 심한 오염은 영양적으로도 큰 손실이 발생한다. 따라서 축우는 영양소 섭취량 감소로 증체량 및 산유량 저하가 수반되며, mycotoxin (곰팡이 독소)이 발견되지 않는 상태에서도 곰팡이가 오염된 사료급여는 5~10%의 생산성 저하를 일으킨다 (Schatzmayr, 2005). | |
사료용 볏짚의 저장 기간 동안 어떤 문제가 발생할 수 있는가? | 사료용 볏짚은 대부분 곤포사일리지 형태로 제조 및 저장되어 가축에게 급여되며, 저장기간 동안 수확한 볏짚, 환경과 미생물 사이의 복잡한 관계 속에 품질에 영향을 미친다. 그리고 저장기간 동안 영상온도에서 공기와 수분이 존재하는 자연생태환경은 조사료에 Aspergillus sp.를 비롯한 여러 종류의 곰팡이 오염과 성장을 일으킨다 (성 등, 2010; Smith와 Lynch, 1973; Cole 등, 1977; Sebunya와 Yourtee, 1990; Nelson, 1993). | |
mycotoxin이란 무엇인가? | 곰팡이는 자연환경 속에서 자신들의 생존 경쟁력을 증가시키기 위해 다양한 이차대사산물을 분비하고, 이들 중 많은 대사산물이 항곰팡이성 및 항균성 활성을 갖는다. 특히, mycotoxin 은 곰팡이가 성장하면서 생성한 2차 대사산물로 극소량만으로도 동물, 사람뿐만 아니라 식물에게도 독성을 나타내는 물질이다 (Undi와 Wittenberg, 1996; Santin, 2005). 수종의 곰팡이가 작물이 성장, 수확 및 저장기간 동안 수천가지 곰팡이 독소를 생성하지만 400여종의 mycotoxin만이 화학적으로 확인되었으며, 생물학적 및 수의학적 영향은 단지 수종에 한하여 밝혀졌다 (Kore, 1996). |
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