Abstract
Background: Liriope platyphylla and organic acids (humic and fulvic acids) as additives in the feedstock may aid in decreasing CH4 formation in the rumen. Based on previous studies, Hanwoo steers were raised with feedstock added with Liriope platyphylla and organic acids and their fecal samples were analyzed to determine the changes in their organic matter and nitrogen content determining the GHG emissions from feces in the form of CH4 and N2O. Methods: Ten Hanwoo cattle were provided with experimental diet and their weights were measured to determine harmful effects of experimental diet and measure fecal composition. To measure CH4 emission from the rumen in vitro, rumen fluid with Liriope platyphylla 1.0% and organic acids 0.05% added to the feed was prepared and incubated in triplicate. Result: The addition of Liriope platyphylla had a positive effect on immune function and blood composition, as well as CH4 reduction and further the addition of organic acids resulted in the lowering of CH4 emissions when compared with that of the control. The addition of Liriope platyphylla and organic acids is a potential additive of reducing CH4 emissions from ruminants without disrupting cattle growth.
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