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231224s2014 xx |||||o 00| ||eng c |
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|a 10.5713/ajas.2013.13742
|2 doi
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|a pubmed24n0805.xml
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|a eng
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| 100 |
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|a Sun, H
|e verfasserin
|4 aut
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|a Effects of Aspergillus Oryzae Culture and 2-Hydroxy-4-(Methylthio)-Butanoic Acid on In vitro Rumen Fermentation and Microbial Populations between Different Roughage Sources
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 02.09.2014
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|a Date Revised 21.10.2021
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a An in vitro experiment was conducted to evaluate the effects of Aspergillus oryzae culture (AOC) and 2-hydroxy-4-(methylthio)-butanoic acid (HMB) on rumen fermentation and microbial populations between different roughage sources. Two roughage sources (Chinese wild rye [CWR] vs corn silage [CS]) were assigned in a 2×3 factorial arrangement with HMB (0 or 15 mg) and AOC (0, 3, or 6 mg). Gas production (GP), microbial protein (MCP) and total volatile fatty acid (VFA) were increased in response to addition of HMB and AOC (p<0.01) for the two roughages. The HMB and AOC showed inconsistent effects on ammonia-N with different substrates. For CWR, neither HMB nor AOC had significant effect on molar proportion of individual VFA. For CS, acetate was increased (p = 0.02) and butyrate was decreased (p<0.01) by adding HMB and AOC. Increase of propionate was only occurred with AOC (p<0.01). Populations of protozoa (p≤0.03) and fungi (p≤0.02) of CWR were differently influenced by HMB and AOC. Percentages of F. succinogenes, R. albus, and R. flavefaciens (p<0.01) increased when AOC was added to CWR. For CS, HMB decreased the protozoa population (p = 0.01) and increased the populations of F. succinogenes and R. albus (p≤0.03). Populations of fungi, F. succinogenes (p = 0.02) and R. flavefacien (p = 0.03) were increased by adding AOC. The HMB×AOC interactions were noted in MCP, fungi and R. flavefacien for CWR and GP, ammonia-N, MCP, total VFA, propionate, acetate/propionate (A/P) and R. albus for CS. It is inferred that addition of HMB and AOC could influence rumen fermentation of forages by increasing the number of rumen microbes
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|a Journal Article
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|a 2-Hydroxy-4-(Methylthio)-Butanoic Acid
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4 |
|a Aspergillus Oryzae
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| 650 |
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4 |
|a Chinese Wild Rye
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|a Corn Silage
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| 650 |
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|a In vitro Rumen Fermentation
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| 650 |
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|a Microbial Population
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| 700 |
1 |
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|a Wu, Y M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Y M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, J X
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Myung, K H
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Asian-Australasian journal of animal sciences
|d 1998
|g 27(2014), 9 vom: 01. Sept., Seite 1285-92
|w (DE-627)NLM098195883
|x 1011-2367
|7 nnns
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| 773 |
1 |
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|g volume:27
|g year:2014
|g number:9
|g day:01
|g month:09
|g pages:1285-92
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| 856 |
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|u http://dx.doi.org/10.5713/ajas.2013.13742
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