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NTIS 바로가기한국초지조사료학회지 = Journal of the Korean Society of Grassland and Forage Science, v.36 no.4, 2016년, pp.309 - 317
임동현 (농촌진흥청 국립축산과학원) , 기광석 (농촌진흥청 국립축산과학원) , 최순호 (농촌진흥청 국립축산과학원) , 김태일 (농촌진흥청 국립축산과학원)
The study was conducted to evaluate the effects of microbial culture supplements on ruminal fermentation and fermentative quality of Italian ryegrass silage (IRGS) both in vitro and in situ. Three species of microbes (Lactobacillus casei (LC), Bacillus subtilis (BS), and Saccharomyces cerevisiae (SC...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
젖산균은 무엇이며 어떤 특징을 가지고 있는가? | 젖산균(Lactobacillus)은 양질의 사일리지 제조를 위해 사용되는 미생물로, 사일리지의 저장성을 향상시킬 뿐만 아니라 건물 소실률 및 단백질 분해율을 감소시키며(Seale, 1986), 또한 낙산의 생성을 감소시켜 가축의 증체량과 산유량 개선에 효과가 있는 것으로 보고되고 있다(Buchanan-Smith, 1990; Muck and Kung, 1997). 고초균(Bacillus sp. | |
IRG를 포함한 국내 생산되는 조사료의 농가 사용에 어려움을 겪는 이유는 무엇인가? | 우리나라 답리작에서 많이 재배되고 있는 이탈리안 라이그라스(Italian ryegrass, IRG)는 가축의 기호성과 사료가치가 우수하기 때문에 배합사료 중심의 급여체계를 대체할 수 있는 중요한 조사료 자원의 하나이다. 그러나 이탈리안 라이그라스를 포함하여 국내에서 생산되는 대부분의 조사료는 사일리지 형태로 이용하고 있으나, 고 수분, 2차 발효에 의한 부패, 그리고 이물질 혼입 등의 문제로 인해 실제 농가에서 사용에 어려움을 겪고 있는 실정이다. | |
고초균은 어떤 균종이며 특징은 무엇인가? | 고초균(Bacillus sp.)은 자연계에 널리 분포하는 균종으로서, 단백질, 지방 및 탄수화물에 대하여 분해활성이 높은 것으로 알려져 있는데(Kalogridou-Vassiliadou, 1992), Qiao et al. (2010)은 사료첨가제로써 B. subtilis의 첨가수준에 따라 젖소에서 반추위 발효특성, 영양소 소화율, 유단백 및 유량에 상당한 변이가 있는 것으로 보고하였다. 반추동물에서 효모(Saccharomyces cerevisiae)의 반추위 발효 조절 및 생산성 증진에 대해 많은 연구가 진행되었으며(Rose, 1980; Weidmeier et al. |
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