Đăng nhập
 
Tìm kiếm nâng cao
 
Tên bài báo
Tác giả
Năm xuất bản
Tóm tắt
Lĩnh vực
Phân loại
Số tạp chí
 

Bản tin định kỳ
Báo cáo thường niên
Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Kỷ yếu hội nghị quốc tế 2012
Số tạp chí (2012) Trang:
Tạp chí: Livestock-Based Farming Systems, Renewable Resources and the Environment
Liên kết:

Defaunation, the removal of protozoa from the rumen was used to investigate the effects of protozoa on rumen bacteria. Twelve Sindhi x Yellow cattle were allowcated into a two by two factorial design (absence or presence of protozoa; cottonseed cake or concentrate supplement). The basal rougahe diet was based on natural grass and rice straw. The animals were adapted for 21 days with the experimental diets before being dosed with soybean oil, a defaunation agent, at 6 ml/kg live weight. Rumen fluid was collected at day 5, 30,60 and 90 post defaunation. Conventional counting of protozoa was performed. In additon, genomic DNA  rumen microorganisms was extracted to further used in real-time PCR quantification of cellulolytic bacteria.

 Protozoa numbers significantly reduced at 5 days after oil drench and gradually recovered until day 90. Relative fold changes of Ruminococcus albus and Ruminococcus flavefaciens were significanly higher in defaunated cattle at both protein source supplements but the number of Fibrobacter succinogenes was lower (0.84-0.39 fold) in defaunated cattle under concentrate supplementation. Moreover, defaunation did not show significant effects on the abundance of methanogens, with an exception of increasing fold change at day 5 in defaunated cattle.

 It is concluded that partial defaunation using soybean oil was beneficial regarding to an increasing numbers of R. albus and Rflavefaciens but the advantagous evidence on methanogens abundance was not achieved.

Các bài báo khác
Số tạp chí (2012) Trang:
Tạp chí: Livestock-Based Farming Systems, Renewable Resources and the Environment
Số tạp chí (2012) Trang:
Tạp chí: Water resources and wetlands, Tulcea (ROMANIA), 14-16 September 2012
Số tạp chí (2012) Trang: 73-83
Tạp chí: GI Zeitgeist 2012 , Munster, Germany, March 2012
Số tạp chí (2012) Trang: 251-256
Tạp chí: 10th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences from 10th to 13th July 2012, Florianópolis, SC, Brazil.
Số tạp chí (2012) Trang:
Tạp chí: Chemistry conference for young scientists 2012 - ChemCYS2012, Blankenberge, Belgium 1-2 March 2012
Số tạp chí (2012) Trang:
Tạp chí: Young Belgian Magnetic Resonance Scientist Symposium YBNMRS 2012 - Spa, Belgium 26-27 November 2012
Số tạp chí (2012) Trang: 415-420
Tạp chí: 2ND INTERNATIONAL CONFERENCE ON GREEN TECHNOLOGY AND SUSTAINABLE DEVELOPMENT OCTOBER 30th - 31st, 2014, Ho Chi Minh City University of Technical Education
Số tạp chí (2012) Trang:
Tạp chí: The Symposium of The current Status and Future Success Strategies of Korean Food Globalization,15 November, 2012, Korea
Số tạp chí 1(2012) Trang: 26th 15:50-16:25
Tạp chí: International Workshop on Freshwater Biodiversity Coversation in Asia
Số tạp chí 2nd International Conference on Transportation Geotechnics (ICTG)(2012) Trang: 587-592
Tạp chí: Advances in Transportation Geotechnics II
Số tạp chí (2012) Trang: 3113-3118
Tạp chí: IEEE ECCE 12, North Carolina, USA, Sep. 2012.
Số tạp chí 978-1-4673-1128-1(2012) Trang: 1-6
Tạp chí: IEEE PEMWA, USA,Jul. 2012
Số tạp chí (2012) Trang: 1874-1879
Tạp chí: IEEE ISIE, Hangzhou, China, May 2012
Số tạp chí (2012) Trang: 85-86
Tạp chí: Proceeding of 14th International Summer Symposium, International Activities Committee, Nagoya, Japan
Số tạp chí Inforum 2012(2012) Trang: 343-354
Tạp chí: INForum - Simpósio de Informática
Số tạp chí 1(2012) Trang: 1
Tạp chí: IFS 2012
Số tạp chí 1(2012) Trang: 487
Tạp chí: 1st International Conference on Animal Production and environment
Số tạp chí 1(2012) Trang: 1
Tạp chí: 7th Vietnamese-Hungarian International Conference. Can Tho University, 28- 29/8/2012
Số tạp chí 1(2012) Trang: 1
Tạp chí: Procedings of IFS 2012, 84-90
Số tạp chí 1(2012) Trang: 1
Tạp chí: International Conference on GeoInformatics for Spatial Infrastructre Development in Earth and Allied Scuences


Vietnamese | English






 
 
Vui lòng chờ...