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Ensiling of rice straw enhances the nutritive quality, improves average daily gain, reduces in vitro methane production and increases ruminal bacterial diversity in growing Hu lambs. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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2
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Bio-Fermentation Improved Rumen Fermentation and Decreased Methane Concentration of Rice Straw by Altering the Particle-Attached Microbial Community. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8020072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bio-fermentation technology has been successfully developed for ensiling rice straw; however, its effects on the particle-attached microbial community remains unknown. Therefore, rice straw (RS) and bio-fermented rice straw (BFRS) were used as substrates for in vitro rumen fermentation to investigate the effect of bio-fermentation on particle-attached microbial community, as well as their effects on gas and methane production, fermentation products, and fiber degradation. Our results have shown that total gas production, fiber degradation, and in vitro fermentation products were significantly higher (p < 0.05) for the BFRS than the RS, while methane concentration in total gas volume was significantly lower (p < 0.05) for the BFRS than RS. Linear discriminant effect size (LefSe) analysis revealed that the relative abundance of the phyla Bacteroidetes, Fibrobacteres, Proteobacteria, and Lantisphaerae, as well as the genera Fibrobacter, Saccharofermentans, and [Eubacterium] ruminantium groups in the tightly attached bacterial community, was significantly higher (p < 0.05) for the BFRS than the RS, whereas other microbial communities did not change. Thus, bio-fermentation altered the tightly attached bacterial community, thereby improving gas production, fiber degradation, and fermentation products. Furthermore, bio-fermentation reduced methane concentration in total gas volume without affecting the archaeal community.
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3
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Koike S, Ueno M, Miura H, Saegusa A, Inouchi K, Inabu Y, Sugino T, Guan LL, Oba M, Kobayashi Y. Rumen microbiota and its relation to fermentation in lactose-fed calves. J Dairy Sci 2021; 104:10744-10752. [PMID: 34218911 DOI: 10.3168/jds.2021-20225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/25/2021] [Indexed: 01/26/2023]
Abstract
In our previous studies, we revealed the effect of lactose inclusion in calf starters on the growth performance and gut development of calves. We conducted the present study as a follow-up study to identify the shift in rumen microbiota and its relation to rumen fermentation when calves are fed a lactose-containing starter. Thirty Holstein bull calves were divided into 2 calf starter treatment groups: texturized calf starter (i.e., control; n = 15) or calf starter in which starch was replaced with lactose at 10% (i.e., LAC10; n = 15) on a dry matter basis. All calves were fed their respective treatment calf starter ad libitum from d 7, and kleingrass hay from d 35. Rumen digesta were collected on d 80 (i.e., 3 wk after weaning) and used to analyze rumen microbiota and fermentation products. There was no apparent effect of lactose feeding on the α-diversity and overall composition of rumen microbiota. Amplicon sequencing and real-time PCR quantification of the 16S rRNA gene confirmed that the abundance of butyrate-producing bacteria (i.e., Butyrivibrio group and Megasphaera elsdenii) did not differ between the control and LAC10 groups. Conversely, the relative abundance of Mitsuokella spp., which produce lactate, succinate, and acetate, was significantly higher in the rumen of calves that were fed lactose, whereas the lactate concentration did not differ between the control and LAC10 groups. These findings suggest that the lactate production can be elevated by an increase of Mitsuokella spp. and then converted into butyrate, not propionate, since the proportion of propionate was lower in lactose-fed calves. In addition, we observed a higher abundance of Coriobacteriaceae and Pseudoramibacter-Eubacterium in the LAC10 group. Both these bacterial taxa include acetate-producing bacteria, and a positive correlation between the acetate-to-propionate ratio and the abundance of Pseudoramibacter-Eubacterium was observed. Therefore, the higher abundance of Coriobacteriaceae, Mitsuokella spp., and Pseudoramibacter-Eubacterium in the rumen of lactose-fed calves partially explains the increase in the proportion of rumen acetate that was observed in our previous study.
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Affiliation(s)
- S Koike
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589.
| | - M Ueno
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589
| | - H Miura
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589
| | - A Saegusa
- Dairy Technology Research Institute, Feed-Livestock and Guidance Department, The National Federation of Dairy Co-operative Associations, Nishi-shirakawa, Fukushima, Japan 969-0223
| | - K Inouchi
- Dairy Technology Research Institute, Feed-Livestock and Guidance Department, The National Federation of Dairy Co-operative Associations, Nishi-shirakawa, Fukushima, Japan 969-0223
| | - Y Inabu
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan 739-8528
| | - T Sugino
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan 739-8528
| | - L L Guan
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - M Oba
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - Y Kobayashi
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589
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Synchrony Degree of Dietary Energy and Nitrogen Release Influences Microbial Community, Fermentation, and Protein Synthesis in a Rumen Simulation System. Microorganisms 2020; 8:microorganisms8020231. [PMID: 32050406 PMCID: PMC7074744 DOI: 10.3390/microorganisms8020231] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/02/2020] [Accepted: 02/06/2020] [Indexed: 02/01/2023] Open
Abstract
Synchrony of energy and nitrogen release in rumen has been proposed to maximize ruminal microbial fermentation. However, the information regarding bacterial community composition and its metabolism under a higher or lower degree of synchronization is limited. In our study, a 0 to 6 h post-feeding infusion (first half infusion, FHI), 6 to 12 h post-feeding infusion (second half infusion, SHI), and 0 to 12 h post-feeding infusion (continuous infusion, CI) of maltodextrin were used to simulate varying degrees of synchronization of energy and nitrogen release in a rumen simulation system. In addition, the bacterial community, metabolite, enzyme activity, and microbial protein synthesis (MPS) were evaluated. Compared with the FHI and CI, the relative abundance of Fibrobacter, Ruminobacter, BF311, and CF231 decreased in the SHI, but that of Klebsiella and Succinivibrio increased in the SHI. The NH3-N and branched-chain volatile fatty acids were significantly higher, but propionate content and activities of glutamate dehydrogenase (GDH) and alanine dehydrogenase were significantly lower in the SHI than those in the FHI and CI. The SHI had lower MPS and less efficiency of MPS than the FHI and CI, which indicated that the SHI had a lower degree of synchronization. Correlation analysis showed that MPS was positively related to GDH activity and relative abundance of Fibrobacter but negatively related to NH3-N and relative abundance of Klebsiella. Therefore, a higher degree of synchronization of energy and nitrogen release increased MPS partly via influencing the bacterial community, metabolism, and enzyme activities of ammonia assimilation in the in vitro fermenters.
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5
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Raut MP, Couto N, Karunakaran E, Biggs CA, Wright PC. Deciphering the unique cellulose degradation mechanism of the ruminal bacterium Fibrobacter succinogenes S85. Sci Rep 2019; 9:16542. [PMID: 31719545 PMCID: PMC6851124 DOI: 10.1038/s41598-019-52675-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 10/22/2019] [Indexed: 02/04/2023] Open
Abstract
Fibrobacter succinogenes S85, isolated from the rumen of herbivores, is capable of robust lignocellulose degradation. However, the mechanism by which it achieves this is not fully elucidated. In this study, we have undertaken the most comprehensive quantitative proteomic analysis, to date, of the changes in the cell envelope protein profile of F. succinogenes S85 in response to growth on cellulose. Our results indicate that the cell envelope proteome undergoes extensive rearrangements to accommodate the cellulolytic degradation machinery, as well as associated proteins involved in adhesion to cellulose and transport and metabolism of cellulolytic products. Molecular features of the lignocellulolytic enzymes suggest that the Type IX secretion system is involved in the translocation of these enzymes to the cell envelope. Finally, we demonstrate, for the first time, that cyclic-di-GMP may play a role in mediating catabolite repression, thereby facilitating the expression of proteins involved in the adhesion to lignocellulose and subsequent lignocellulose degradation and utilisation. Understanding the fundamental aspects of lignocellulose degradation in F. succinogenes will aid the development of advanced lignocellulosic biofuels.
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Affiliation(s)
- Mahendra P Raut
- The ChELSI Institute, Department of Chemical and Biological Engineering, University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK
| | - Narciso Couto
- The ChELSI Institute, Department of Chemical and Biological Engineering, University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK.,Centre for Applied Pharmacokinetic Research, University of Manchester, Stopford Building, Oxford Road, Manchester, M13 9PT, UK
| | - Esther Karunakaran
- The ChELSI Institute, Department of Chemical and Biological Engineering, University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK
| | - Catherine A Biggs
- School of Engineering, Faculty of Science, Agriculture & Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Phillip C Wright
- School of Engineering, Faculty of Science, Agriculture & Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK.
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6
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Moraïs S, Mizrahi I. Islands in the stream: from individual to communal fiber degradation in the rumen ecosystem. FEMS Microbiol Rev 2019; 43:362-379. [PMID: 31050730 PMCID: PMC6606855 DOI: 10.1093/femsre/fuz007] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 04/05/2019] [Indexed: 12/20/2022] Open
Abstract
The herbivore rumen ecosystem constitutes an extremely efficient degradation machinery for the intricate chemical structure of fiber biomass, thus, enabling the hosting animal to digest its feed. The challenging task of deconstructing and metabolizing fiber is performed by microorganisms inhabiting the rumen. Since most of the ingested feed is comprised of plant fiber, these fiber-degrading microorganisms are of cardinal importance to the ecology of the rumen microbial community and to the hosting animal, and have a great impact on our environment and food sustainability. We summarize herein the enzymological fundamentals of fiber degradation, how the genes encoding these enzymes are spread across fiber-degrading microbes, and these microbes' interactions with other members of the rumen microbial community and potential effect on community structure. An understanding of these concepts has applied value for agriculture and our environment, and will also contribute to a better understanding of microbial ecology and evolution in anaerobic ecosystems.
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Affiliation(s)
- Sarah Moraïs
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Sderot Ben Gurion 1, Beer-Sheva 8499000, Israel
| | - Itzhak Mizrahi
- Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Sderot Ben Gurion 1, Beer-Sheva 8499000, Israel
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Petri RM, Münnich M, Zebeli Q, Klevenhusen F. Graded replacement of corn grain with molassed sugar beet pulp modulates the fecal microbial community and hindgut fermentation profile in lactating dairy cows. J Dairy Sci 2019; 102:5019-5030. [PMID: 30928269 DOI: 10.3168/jds.2018-15704] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 02/05/2019] [Indexed: 01/21/2023]
Abstract
High starch lactation diets not only enhance the risk of subacute ruminal acidosis but also of hindgut acidosis, which increases the risk of dysbiosis and the depression of fiber degradation. We recently showed that replacing corn with molassed sugar beet pulp (Bp) improved fiber degradation in high-producing dairy cattle, possibly because of an improvement of rumen and hindgut conditions for microbes by Bp feeding. However, little is known about the effects of high inclusion rates of Bp on hindgut microbes and fermentation. Thus fecal grab samples were taken from 18 high-yielding Simmental cows after 28 d of feeding 3 different levels of Bp (n = 6) for bacterial 16S rRNA amplicon sequencing. In addition, the reticular pH was continuously monitored with indwelling sensors and eating and ruminating behavior was evaluated with noseband sensors. The Bp inclusion rates were 0 g/kg (i.e., no Bp inclusion as control, CON), 120 g/kg (12Bp), or 240 g/kg (24Bp) replacing corn grain and limestone on a dry matter basis. The amount of time spent eating and ruminating was unaffected by Bp level, and the daily fluctuation in the reticular pH was reduced by 25% with Bp inclusion from 0.8 in the CON diet to 0.6 in 24Bp fed animals. Also, the fecal pH tended to increase with dietary Bp inclusion. Fecal acetate production showed a quadratic tendency with the lowest concentration (58.9%) of the total short-chain fatty acid in the 12Bp treatment. Inclusion of Bp up to 24% of the diet decreased the fecal butyrate proportion by 27%. The Shannon diversity index was increased from 5.50 to 8.09 with dietary Bp inclusion indicating increased species diversity. Of the 200 most abundant operational taxonomic units, 25 were increased by dietary Bp inclusion, whereas 15 were decreased and 7 were quadratically affected. The second most abundant group was proposed taxon "CF231" of the family Paraprevotellaceae. Although it accounted for only 2.52% of the operational taxonomic units in the CON diet, it was increased by 64% with dietary Bp inclusion. The largest relative change in the abundance was found for the genus Fibrobacter that increased more than 14-fold from 0.04% (CON) to 0.66% (24Bp). In conclusion, feeding molassed sugar beet pulp as partial substitution of corn up to 240 g/kg is a viable alternative that promotes ruminal and hindgut fermentation by supporting physiological pH and bacterial diversity.
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Affiliation(s)
- Renee Maxine Petri
- Institute of Animal Nutrition and Functional Plant Compounds, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, 1210 Vienna, Austria.
| | - Matthias Münnich
- Institute of Animal Nutrition and Functional Plant Compounds, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
| | - Qendrim Zebeli
- Institute of Animal Nutrition and Functional Plant Compounds, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, 1210 Vienna, Austria
| | - Fenja Klevenhusen
- Institute of Animal Nutrition and Functional Plant Compounds, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, 1210 Vienna, Austria.
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Duque E, Daddaoua A, Cordero BF, Udaondo Z, Molina‐Santiago C, Roca A, Solano J, Molina‐Alcaide E, Segura A, Ramos J. Ruminal metagenomic libraries as a source of relevant hemicellulolytic enzymes for biofuel production. Microb Biotechnol 2018; 11:781-787. [PMID: 29663699 PMCID: PMC6011990 DOI: 10.1111/1751-7915.13269] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 03/22/2018] [Indexed: 12/01/2022] Open
Abstract
The success of second-generation (2G) ethanol technology relies on the efficient transformation of hemicellulose into monosaccharides and, particularly, on the full conversion of xylans into xylose for over 18% of fermentable sugars. We sought new hemicellulases using ruminal liquid, after enrichment of microbes with industrial lignocellulosic substrates and preparation of metagenomic libraries. Among 150 000 fosmid clones tested, we identified 22 clones with endoxylanase activity and 125 with β-xylosidase activity. These positive clones were sequenced en masse, and the analysis revealed open reading frames with a low degree of similarity with known glycosyl hydrolases families. Among them, we searched for enzymes that were thermostable (activity at > 50°C) and that operate at high rate at pH around 5. Upon a wide series of assays, the clones exhibiting the highest endoxylanase and β-xylosidase activities were identified. The fosmids were sequenced, and the corresponding genes cloned, expressed and proteins purified. We found that the activity of the most active β-xylosidase was at least 10-fold higher than that in commercial enzymatic fungal cocktails. Endoxylanase activity was in the range of fungal enzymes. Fungal enzymatic cocktails supplemented with the bacterial hemicellulases exhibited enhanced release of sugars from pretreated sugar cane straw, a relevant agricultural residue.
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Affiliation(s)
- Estrella Duque
- Estación Experimental del Zaidín (CSIC)Calle Profesor Albareda, 118008GranadaSpain
- Department of BiotechnologyAbengoa ResearchCampus Palmas Altas, Avenida de la Energia 141014SevilleSpain
| | - Abdelali Daddaoua
- Estación Experimental del Zaidín (CSIC)Calle Profesor Albareda, 118008GranadaSpain
- Faculty of PharmacyDepartment of PharmacologyUniversity of Granada18071GranadaSpain
| | - Baldo F. Cordero
- Department of BiotechnologyAbengoa ResearchCampus Palmas Altas, Avenida de la Energia 141014SevilleSpain
| | - Zulema Udaondo
- Estación Experimental del Zaidín (CSIC)Calle Profesor Albareda, 118008GranadaSpain
- Department of BiotechnologyAbengoa ResearchCampus Palmas Altas, Avenida de la Energia 141014SevilleSpain
| | - Carlos Molina‐Santiago
- Estación Experimental del Zaidín (CSIC)Calle Profesor Albareda, 118008GranadaSpain
- Department of BiotechnologyAbengoa ResearchCampus Palmas Altas, Avenida de la Energia 141014SevilleSpain
| | - Amalia Roca
- BioIliberis R&DPolígono JuncarilCalle Capileira 718220AlboloteGranadaSpain
| | - Jennifer Solano
- BioIliberis R&DPolígono JuncarilCalle Capileira 718220AlboloteGranadaSpain
| | | | - Ana Segura
- Estación Experimental del Zaidín (CSIC)Calle Profesor Albareda, 118008GranadaSpain
- Department of BiotechnologyAbengoa ResearchCampus Palmas Altas, Avenida de la Energia 141014SevilleSpain
| | - Juan‐Luis Ramos
- Estación Experimental del Zaidín (CSIC)Calle Profesor Albareda, 118008GranadaSpain
- Department of BiotechnologyAbengoa ResearchCampus Palmas Altas, Avenida de la Energia 141014SevilleSpain
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Jin W, Wang Y, Li Y, Cheng Y, Zhu W. Temporal changes of the bacterial community colonizing wheat straw in the cow rumen. Anaerobe 2018; 50:1-8. [PMID: 29330119 DOI: 10.1016/j.anaerobe.2018.01.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 01/03/2018] [Accepted: 01/07/2018] [Indexed: 01/26/2023]
Abstract
This study used Miseq pyrosequencing and scanning electron microscopy to investigate the temporal changes in the bacterial community tightly attached to wheat straw in the cow rumen. The wheat straw was incubated in the rumens and samples were recovered at various times. The wheat straw degradation exhibited three phases: the first degradation phase occurred within 0.5 h, and the second degradation phase occurred after 6 h, with a stalling phase occurring between 0.5 and 6 h. Scanning electron microscopy revealed the colonization of the microorganisms on the wheat straw over time. The bacterial communities at 0.5, 6, 24, and 72 h were determined, corresponding to the degradation phases. Firmicutes and Bacteroidetes were the two most dominant phyla in the bacterial communities at the four time points. Principal coordinate analysis (PCoA) showed that the bacterial communities at the four time points were distinct from each other. The wheat straw-associated bacteria stabilized at the phylum level after 0.5 h of rumen incubation, and only modest phylum-level and family-level changes were observed for most taxa between 0.5 h and 72 h. The relative abundance of the dominant genera, Butyrivibrio, Coprococcus, Ruminococcus, Succiniclasticum, Clostridium, Prevotella, YRC22, CF231, and Treponema, changed significantly over time (P < .05). However, at the genus level, unclassified taxa accounted for 70.3% ± 6.1% of the relative abundance, indicating their probable importance in the degradation of wheat straw as well as in the temporal changes of the bacterial community. Thus, understanding the function of these unclassified taxa is of great importance for targeted improvement of forage use efficiency in ruminants. Collectively, our results revealed distinct degradation phases of wheat straw and corresponding changes in the colonized bacterial community.
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Affiliation(s)
- Wei Jin
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Ying Wang
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Yuanfei Li
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
| | - Yanfen Cheng
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China.
| | - Weiyun Zhu
- Jiangsu Province Key Laboratory of Gastrointestinal Nutrition and Animal Health, Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, 210095, Nanjing, China
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10
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Boonsaen P, Kinjo M, Sawanon S, Suzuki Y, Koike S, Kobayashi Y. Partial characterization of phylogeny, ecology and function of the fibrolytic bacteriumRuminococcus flavefaciens OS14, newly isolated from the rumen of swamp buffalo. Anim Sci J 2017; 89:377-385. [DOI: 10.1111/asj.12927] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Accepted: 08/17/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Phoompong Boonsaen
- Department of Animal Science; Faculty of Agriculture at Kamphaeng Saen; Kasetsart University; Nakhon Pathom Thailand
- Center for Advanced Studies for Agriculture and Food; Kasetsart University Institute for Advanced Studies; Kasetsart University; Bangkok Thailand
| | - Madoka Kinjo
- Laboratory of Animal Function and Nutrition; Research Faculty of Agriculture; Hokkaido University; Sapporo Japan
| | - Suriya Sawanon
- Department of Animal Science; Faculty of Agriculture at Kamphaeng Saen; Kasetsart University; Nakhon Pathom Thailand
- Center for Advanced Studies for Agriculture and Food; Kasetsart University Institute for Advanced Studies; Kasetsart University; Bangkok Thailand
| | - Yutaka Suzuki
- Laboratory of Animal Function and Nutrition; Research Faculty of Agriculture; Hokkaido University; Sapporo Japan
| | - Satoshi Koike
- Laboratory of Animal Function and Nutrition; Research Faculty of Agriculture; Hokkaido University; Sapporo Japan
| | - Yasuo Kobayashi
- Laboratory of Animal Function and Nutrition; Research Faculty of Agriculture; Hokkaido University; Sapporo Japan
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11
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Kobayashi Y, Oh S, Myint H, Koike S. Use of Asian selected agricultural byproducts to modulate rumen microbes and fermentation. J Anim Sci Biotechnol 2016; 7:70. [PMID: 28018590 PMCID: PMC5159970 DOI: 10.1186/s40104-016-0126-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 10/25/2016] [Indexed: 11/10/2022] Open
Abstract
In the last five decades, attempts have been made to improve rumen fermentation and host animal nutrition through modulation of rumen microbiota. The goals have been decreasing methane production, partially inhibiting protein degradation to avoid excess release of ammonia, and activation of fiber digestion. The main approach has been the use of dietary supplements. Since growth-promoting antibiotics were banned in European countries in 2006, safer alternatives including plant-derived materials have been explored. Plant oils, their component fatty acids, plant secondary metabolites and other compounds have been studied, and many originate or are abundantly available in Asia as agricultural byproducts. In this review, the potency of selected byproducts in inhibition of methane production and protein degradation, and in stimulation of fiber degradation was described in relation to their modes of action. In particular, cashew and ginkgo byproducts containing alkylphenols to mitigate methane emission and bean husks as a source of functional fiber to boost the number of fiber-degrading bacteria were highlighted. Other byproducts influencing rumen microbiota and fermentation profile were also described. Future application of these feed and additive candidates is very dependent on a sufficient, cost-effective supply and optimal usage in feeding practice.
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Affiliation(s)
- Yasuo Kobayashi
- Lab of Animal Function and Nutrition, Research Faculty of Agriculture, Hokkaido University, Sapporo, 060-8589 Japan
| | - Seongjin Oh
- Lab of Animal Function and Nutrition, Research Faculty of Agriculture, Hokkaido University, Sapporo, 060-8589 Japan
| | - Htun Myint
- Lab of Animal Function and Nutrition, Research Faculty of Agriculture, Hokkaido University, Sapporo, 060-8589 Japan
| | - Satoshi Koike
- Lab of Animal Function and Nutrition, Research Faculty of Agriculture, Hokkaido University, Sapporo, 060-8589 Japan
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12
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Metzler-Zebeli B, Khol-Parisini A, Gruber L, Zebeli Q. Microbial populations and fermentation profiles in rumen liquid and solids of Holstein cows respond differently to dietary barley processing. J Appl Microbiol 2015; 119:1502-14. [DOI: 10.1111/jam.12958] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 09/12/2015] [Accepted: 09/16/2015] [Indexed: 01/21/2023]
Affiliation(s)
- B.U. Metzler-Zebeli
- Department for Farm Animals and Veterinary Public Health; University Clinic for Swine; University of Veterinary Medicine Vienna; Vienna Austria
- Research Cluster “Animal Gut Health”; Department for Farm Animals and Veterinary Public Health; University of Veterinary Medicine Vienna; Vienna Austria
| | - A. Khol-Parisini
- Research Cluster “Animal Gut Health”; Department for Farm Animals and Veterinary Public Health; University of Veterinary Medicine Vienna; Vienna Austria
- Department for Farm Animals and Veterinary Public Health; Institute of Animal Nutrition and Functional Plant Compounds; University of Veterinary Medicine; Vienna Austria
| | - L. Gruber
- Institute of Livestock Research; Agricultural Research and Education Centre Raumberg-Gumpenstein; Irdning Austria
| | - Q. Zebeli
- Research Cluster “Animal Gut Health”; Department for Farm Animals and Veterinary Public Health; University of Veterinary Medicine Vienna; Vienna Austria
- Department for Farm Animals and Veterinary Public Health; Institute of Animal Nutrition and Functional Plant Compounds; University of Veterinary Medicine; Vienna Austria
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