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NTIS 바로가기한국초지조사료학회지 = Journal of the Korean Society of Grassland and Forage Science, v.39 no.4, 2019년, pp.227 - 234
김동현 (국립축산과학원) , 김명후 (부산대학교 동물생명자원과학과) , 김상범 (농촌진흥청) , 하승민 (국립축산과학원) , 손준규 (국립축산과학원) , 이지환 (국립축산과학원) , 허태영 (국립축산과학원) , 이재영 (국립축산과학원) , 박지후 (국립축산과학원) , 최희철 (국립축산과학원) , 이현정 (국립축산과학원) , 박범영 (국립축산과학원) , 기광석 (국립축산과학원) , 김언태 (국립축산과학원)
This study was performed to investigate the effect of heat-stressed environment on rumen microbial diversity in Holstein cows. Rectal temperature and respiration rate were measured and rumen fluid was collected under normal environment (NE; Temperature humidity index (THI)=64.6) and heat-stressed en...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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홀스타인 종이 취약한 스트레스는 무엇인가? | , 2009). 젖소의 생산성은 주변온도, 습도, 바람 및 일조량 등의 환경변화에 따라 민감하게 변화하며, 국내 사육중인 젖소는 대부분 홀스타인 종으로 고온 스트레스에 취약하다고 알려져 있다(Armstrong, 1994; Nguyen et al., 2016). | |
반추위내 미생물 균총이 고온에 영향을 받는 근거는 무엇인가? | 반추위액 내 미생물 균총을 분석한 결과, 사육환경 온습도에 따른 미생물 군집 구성에는 큰 차이는 없었으나, 미생물의 상대적 함량에는 차이가 있었다. LEfSe 분석을 통해 적온과 고온 환경에서 특정 미생물들의 상대적 조성이 유의적으로 증가함을 확인하였다. 이들 결과를 볼 때, 반추위내 미생물 균총은 고온과 같은 외부 환경변화에 영향을 받는 것으로 판단되어 젖소의 고온스트레스 반응에 있어 반추위 미생물 변화가 중요한 역할을 담당할 것으로 사료된다. | |
반추위액 내 미생물 균총을 분석한 결과는 무엇인가? | 12888, MO BIO)를 이용하여 DNA를 추출한 후 Illumina HiSeqTM platform (Illumina, CA, USA)을 이용하여 미생물 균총 분석을 실시하였다. 반추위액 내 미생물 균총을 분석한 결과, 사육환경 온습도에 따른 미생물 군집 구성에는 큰 차이는 없었으나, 미생물의 상대적 함량에는 차이가 있었다. LEfSe 분석을 통해 적온과 고온 환경에서 특정 미생물들의 상대적 조성이 유의적으로 증가함을 확인하였다. |
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