In vitro gas and short-chain fatty acid production from soybean meal treated with chestnut and quebracho wood extracts by using sheep rumen fluid

Lavrenčič, Andrej (author), Pirman, Tatjana (author)

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
• UDC: 636.084/.087
• ISSN on article: 1230-1388
• DOI: 10.22358/jafs/144587/2021
• COBISS.SI-ID: 99418627
• Publication date in RUL: 08.03.2022

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

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