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231224s2014 xx |||||o 00| ||eng c |
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|a 10.5713/ajas.2014.14204
|2 doi
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|a pubmed25n0810.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Kondo, Makoto
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Assessment of Anti-nutritive Activity of Tannins in Tea By-products Based on In vitro Rumen Fermentation
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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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|a ƒa Online-Ressource
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|a Date Completed 31.10.2014
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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 Nutritive values of green and black tea by-products and anti-nutritive activity of their tannins were evaluated in an in vitro rumen fermentation using various molecular weights of polyethylene glycols (PEG), polyvinyl pyrrolidone (PVP) and polyvinyl polypyrrolidone as tannin-binding agents. Significant improvement in gas production by addition of PEG4000, 6000 and 20000 and PVP was observed only from black tea by-product, but not from green tea by-product. All tannin binding agents increased NH3-N concentration from both green and black tea by-products in the fermentation medium, and the PEG6000 and 20000 showed relatively higher improvement in the NH3-N concentration. The PEG6000 and 20000 also improved in vitro organic matter digestibility and metabolizable energy contents of both tea by-products. It was concluded that high molecular PEG would be suitable to assess the suppressive activity of tannins in tea by-products by in vitro fermentation. Higher responses to gas production and NH3-N concentration from black tea by-product than green tea by-product due to PEG indicate that tannins in black tea by-product could suppress rumen fermentation more strongly than that in green tea by-product
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|a Journal Article
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|a In vitro Rumen Fermentation
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|a Tannin
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|a Tannin Binding Agent
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| 650 |
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|a Tea By-product
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1 |
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|a Hirano, Yoshiaki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ikai, Noriyuki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kita, Kazumi
|e verfasserin
|4 aut
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1 |
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|a Jayanegara, Anuraga
|e verfasserin
|4 aut
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|a Yokota, Hiro-Omi
|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), 11 vom: 22. Nov., Seite 1571-6
|w (DE-627)NLM098195883
|x 1011-2367
|7 nnns
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| 773 |
1 |
8 |
|g volume:27
|g year:2014
|g number:11
|g day:22
|g month:11
|g pages:1571-6
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| 856 |
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|u http://dx.doi.org/10.5713/ajas.2014.14204
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