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| 1 | Assessing the relationship between the rumen microbiota and feed efficiency in Nellore steers显示文摘Background:Ruminants rely upon a complex community of microbes in their rumen to convert host-indigestible feed into nutrients.However,little is known about the association between the rumen microbiota and feed efficiency traits in Nellore(Bos indicus)cattle,a breed of major economic importance to the global beef market.Here,we compare the composition of the bacterial,archaeal and fungal communities in the rumen of Nellore steers with high and low feed efficiency(FE)phenotypes,as measured by residual feed intake(RFI).Results:The Firmicutes to Bacteroidetes ratio was significantly higher(P<0.05)in positive-RFI steers(p-RFI,low feed efficiency)than in negative-RFI(n-RFI,high feed efficiency)steers.The differences in bacterial composition from steers with high and low FE were mainly associated with members of the families Lachnospiraceae,Ruminococcaceae and Christensenellaceae,as well as the genus Prevotella.Archaeal community richness was lower(P<0.05)in p-RFI than in n-RFI steers and the genus Methanobrevibacter was either increased or exclusive of p-RFI steers.The fungal genus Buwchfawromyces was more abundant in the rumen solid fraction of n-RFI steers(P<0.05)and a highly abundant OTU belonging to the genus Piromyces was also increased in the rumen microbiota of highefficiency steers.However,analysis of rumen fermentation variables and functional predictions indicated similar metabolic outputs for the microbiota of distinct FE groups.Conclusions:Our results demonstrate that differences in the ruminal microbiota of high and low FE Nellore steers comprise specific taxa from the bacterial,archaeal and fungal communities.Biomarker OTUs belonging to the genus Piromyces were identified in animals showing high feed efficiency,whereas among archaea,Methanobrevibacter was associated with steers classified as p-RFI.The identification of specific RFI-associated microorganisms in Nellore steers could guide further studies targeting the isolation and functional characterization of rumen microbes potentially important for the energy-harvesting efficiency of ruminants. | Déborah Romaskevis Gomes Lopes Márcio de Souza Duarte Alex J.La Reau Ibrahim Zuniga Chaves Tiago Antônio de Oliveira Mendes Edenio Detmann Cláudia Braga Pereira Bento Maria Eugênia Zerlotti Mercadante Sarah Figueiredo Martins Bonilha Garret Suen Hilário Cuquetto Mantovani | 2021 | Journal of Animal Science and Biotechnology2021，12，4： | 3 |
| 2 | Sorption of As(V) from aqueous solution using acid modified carbon black 显示文摘 | Borah D Satokawa S Kato S Kojima T | 2009 | Journal of Hazardous Materials2009，162，： | 1 |
| 3 | Hydrologic procedures of storm event watershed models:A comprehensive review and comparison显示文摘 | BORAH D K | | 0，，22： | 1 |
| 4 | Sediment and Nutrient Modeling for TMDL Development and hnplementation 显示文摘 | BORAH D K YAGOW G SALEH A | 2006 | Transactions of the ASABE2006，49，4： | 1 |
| 5 | Watershed--scale hydrologic and nonpoint-source pollution models: review of mathematical bases显示文摘 | Bera M Borah D K | 2003 | Transactions of the American Society of Agricultural Engineers2003，46，6： | 1 |
| 6 | Watershed-scale hydrologic and non- point-source pollution models: Review of applications显示文摘 | Borah D K Beta M | 2004 | Transactions of the ASAE2004，47，3： | 1 |
| 7 | Effect of soil organic matter on the adsorption of Zn ,Cu ,and Mn in soils显示文摘 | Borah D K Rattan R K Banerjee N K | 1992 | J IndianSoc Soil Sci1992，40，2： | 1 |
| 8 | Optimization of the batch preparation of starch nanocrystals to reach daily time‐scale显示文摘 | Déborah Le Corre Julien Bras Luc Choisnard Alain Dufresne | 2012 | Starch/St?rke2012，，6： | 1 |
| 9 | Recent advances in metal nanoparticles stabilization into nanopores of montmorillonite and their catalytic applications for fine chemicals synthesis显示文摘 | Kumar Dutta D Jyoti Borah B Pollov Sarmah P | 2015 | Catal Rev2015，57，3： | 1 |
| 10 | Surface-modifiedcarbon black for As (V) removal 显示文摘 | BORAH D SATOKAWA S KATO S | 2008 | Journal of Colloid and Interface Science2008，319，11： | 1 |
| 11 | Ceramic membrane filtration for isolating starch nanocrystals显示文摘 | Déborah LeCorre Julien Bras Alain Dufresne | 2011 | Carbohydrate Polymers2011，，4： | 1 |
| 12 | Sediment discharge model for small watersheds显示文摘 | Borah D K | 1989 | Transactions of the Asae1989，32，3： | 1 |
| 13 | Oxidation of highsulphur coal Part 2 Desulphurization of organic sulphurby hydrogen peroxide in presence of metalions 显示文摘 | D Borah M K Baruah I Haque | 2001 | Fuel2001，，80： | 1 |
| 14 | Effects of sleeve gastrectomy in high fat diet-induced obese mice: respective role of reduced caloric intake, white adipose tissue inflammation and changes in adipose tissue and ectopic fat depots显示文摘 | Anne-Sophie Schneck Antonio Iannelli Stéphanie Patouraux Déborah Rousseau Stéphanie Bonnafous Beatrice Bailly-Maitre Ophélia Thuc Carole Rovere Patricia Panaia-Ferrari Rodolphe Anty Albert Tran Philippe Gual Jean Gugenheim | 2014 | Surgical Endoscopy2014，，2： | 1 |
| 15 | Identification of Adipose Tissue Dendritic Cells Correlated With Obesity-Associated Insulin-Resistance and Inducing Th17 Responses in Mice and Patients显示文摘 | Adeline Bertola Thomas Ciucci Déborah Rousseau Virginie Bourlier Carine Duffaut Stéphanie Bonnafous Claudine Blin-Wakkach Rodolphe Anty Antonio Iannelli Jean Gugenheim Albert Tran Anne Bouloumié Philippe Gual Abdelilah Wakkach | 2012 | Diabetes2012，，9： | 1 |
| 16 | Brenner tumor of ovary: An incidental finding显示文摘 | Borah T Mahanta R K Bora B D et aI | 2011 | J Midlife Health2011，2，1： | 1 |
| 17 | α-Satellite DNA methylation in normal individuals and in ICF patients: heterogeneous methylation of constitutive heterochromatin in adult and fetal tissues显示文摘 | Pierre Miniou Marc Jeanpierre Déborah Bourc’his Ana Carolina Coutinho Barbosa Véronique Blanquet E. Viegas-Péquignot | 1997 | Human Genetics1997，，6： | 1 |
| 18 | Spatially partially coherent beam parameter optimization for free space optical communication 显示文摘 | BORAH D K VOELZ D G | 2010 | Optics Express2010，20，20： | 1 |
| 19 | Frequency-selective fadingchannel estimation with a polynomial time-varyingchannel model 显示文摘 | Borah D K Hart B D | 1999 | IEEE Transactions on Communi-cations1999，47，6： | 1 |
| 20 | Watershed-scale hydrologic and nonpoint-source Pollution models Review of applications 显示文摘 | Borah D K Bera M | 2004 | Transactions of the ASAE2004，47，3： | 1 |
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