Original research article
In vitro gas production, methane production and fermentation kinetics of concentrate diet containing incremental levels of sodium humate
2020, 85 (2) p. 183-189
Timothy Tertsegha Ikyume, Olusiji Sunday Sowande, Azeez Olanrewaju Yusuf, Adebayo Olusoji Oni, Peter Aniwe Dele, Olalekan Toheed Ibrahim
Abstract
The redox potentials of humic acids make it a veritable pathway to hydrogen consumption in the rumen that may be a strategy to mitigate methane production. This study assessed the fermentability indices and methane production of incremental levels of sodium humate by in vitro gas production technique. Five experimental diets containing sodium humate at 0, 5, 7.5 10 and 12.5 g/kg diet were formulated. Inoculum prepared was from rumen fluid of West African Dwarf (WAD) goats. Incubation period was 24 hours at 39°C. Fermentation kinetics, methane and rumen metabolites production were analysed using one-way analysis of variance as outlined in the GLM procedure of SAS. Results revealed a decrease (p
Keywords
in vitro, fermentation, methane, sodium humate, WAD goats
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