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

Andrej Lavrenčič (Avtor), Tatjana Pirman (Avtor)

Povzetek

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.

Ključne besede

živinoreja;prehrana živali;maščobne kisline;plini;sojine tropine;tanini;kostanj;kebračo;ovce;vamp;in vitro;

Podatki

Jezik:	Angleški jezik
Leto izida:	2021
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL BF - Biotehniška fakulteta
UDK:	636.084/.087
COBISS:	99418627
ISSN:	1230-1388
Št. ogledov:	160
Št. prenosov:	45
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	živinoreja;prehrana živali;maščobne kisline;plini;sojine tropine;tanini;kostanj;kebračo;ovce;vamp;in vitro;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 312-319
Letnik:	ǂVol. ǂ30
Zvezek:	ǂno. ǂ4
Čas izdaje:	2021
DOI:	10.22358/jafs/144587/2021
ID:	14704353