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In vitro gas and short-chain fatty acid production from soybean meal treated with chestnut and quebracho wood extracts by using sheep rumen fluid
ID Lavrenčič, Andrej (Author), ID Pirman, Tatjana (Author)

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Abstract
An in vitro study was conducted to investigate the effects of soybean meal (SBM) treated with two commercially available quebracho (QUE) and chestnut wood (CWE) extracts, at three different concentrations (15, 30 and 60 g/kg SBM) on the extent and rate of gas and short-chain fatty acid (SCFA) production. During the incubation, the gas production was measured at regular intervals from 0 to 48 h and the data were fitted with the Gompertz model to model gas production dynamics. After 24 h volumes of two syringes per substrate were analysed for individual SCFA contents. Treatment of SBM with CWE and QUE at the lowest concentration significantly increased (P < 0.05) gas production at 24 h of incubation (Gas24) and total SCFA production, but did not affect the proportions of individual SCFA. At higher concentrations (30 and 60 g/kg SBM), only the CWE significantly decreased (P < 0.05) Gas24, while both tannins significantly decreased (P < 0.05) the maximum fermentation rate. Both higher concentrations of CWE and QUE also did not affect total SCFA production, yet CWE significantly increased (P < 0.05) the proportion of acetic acid, while QUE tannins did not affect the proportions of individual SCFA. Obtained results suggest that the low doses of QUE and CWE have a stimulating effect on rumen microorganisms, enhancing the extent and rate of fermentation, while higher doses of CWE and QUE decrease the rate of fermentation; however, only CWE affects the fermentation pattern of rumen microorganisms by changing the proportions of individual SCFA.

Language:English
Keywords:cattle, feed additives, nutrition, rumen fermentation, sheep, chestnut, in vitro gas production, quebracho, short-chain fatty acids, tannins
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Publication status:Published
Publication version:Version of Record
Year:2021
Number of pages:Str. 312-319
Numbering:Vol. 30, no. 4
PID:20.500.12556/RUL-135334 This link opens in a new window
UDC:636.084/.087
ISSN on article:1230-1388
DOI:10.22358/jafs/144587/2021 This link opens in a new window
COBISS.SI-ID:99418627 This link opens in a new window
Publication date in RUL:08.03.2022
Views:572
Downloads:110
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Record is a part of a journal

Title:Journal of Animal and Feed Sciences
Shortened title:J. Anim. Feed Sci.
Publisher:Kielanowski Institute of Animal Physiology and Nutrition
ISSN:1230-1388
COBISS.SI-ID:2098042 This link opens in a new window

Licences

License:CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
Link:http://creativecommons.org/licenses/by-nc/4.0/
Description:A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.
Licensing start date:06.12.2021

Secondary language

Language:Slovenian
Keywords:živinoreja, prehrana živali, maščobne kisline, plini, sojine tropine, tanini, kostanj, kebračo, ovce, vamp, in vitro

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