Zoey Durmic1, Peter J Moate, Richard Eckard, Dean K Revell, Richard Williams, Philip E Vercoe. 1. School of Animal Biology, The University of Western Australia M085, 35 Stirling Hwy, Crawley, WA, 6009, Australia; Future Farm Industries CRC, The University of Western Australia M081, 35 Stirling Hwy, Crawley, WA, 6009, Australia.
Abstract
BACKGROUND: Ruminants produce large quantities of methane in their rumen as a by-product of microbial digestion of feed. Antibiotics are added to ruminant feed to reduce wasteful production of methane; however, this practice has some downsides. A search for safer and natural feed additives with anti-methanogenic properties is under way. The objective of this research was to examine selected feed additives, plant essential oils and plant extracts for their anti-methanogenic potential in the rumen using an in vitro batch fermentation system. RESULTS: A significant reduction (P < 0.05) in methane production was observed with nine feed additives (up to 40% reduction), all eight essential oils (up to 75% reduction) and two plant extracts (14% reduction) when compared to their respective controls. Amongst these, only an algal meal high in docosahexaenoic acid, preparations of Nannochloropsis oculata, calcareous marine algae, yeast metabolites and two tannins did not inhibit microbial gas and volatile acid production. CONCLUSIONS: The current study identified some potent dietary ingredients or plant compounds that can assist in developing novel feed additives for methane mitigation from the rumen.
BACKGROUND: Ruminants produce large quantities of methane in their rumen as a by-product of microbial digestion of feed. Antibiotics are added to ruminant feed to reduce wasteful production of methane; however, this practice has some downsides. A search for safer and natural feed additives with anti-methanogenic properties is under way. The objective of this research was to examine selected feed additives, plant essential oils and plant extracts for their anti-methanogenic potential in the rumen using an in vitro batch fermentation system. RESULTS: A significant reduction (P < 0.05) in methane production was observed with nine feed additives (up to 40% reduction), all eight essential oils (up to 75% reduction) and two plant extracts (14% reduction) when compared to their respective controls. Amongst these, only an algal meal high in docosahexaenoic acid, preparations of Nannochloropsis oculata, calcareous marine algae, yeast metabolites and two tannins did not inhibit microbial gas and volatile acid production. CONCLUSIONS: The current study identified some potent dietary ingredients or plant compounds that can assist in developing novel feed additives for methane mitigation from the rumen.
Authors: Rajan Dhakal; Manuel Gonzalez Ronquillo; Einar Vargas-Bello-Pérez; Hanne Helene Hansen Journal: Animals (Basel) Date: 2022-08-26 Impact factor: 3.231
Authors: Eun Tae Kim; Hee Soon Hwang; Sang Min Lee; Shin Ja Lee; Il Dong Lee; Su Kyoung Lee; Da Som Oh; Jung Hwa Lim; Ho Baek Yoon; Ha Yeon Jeong; Seok Ki Im; Sung Sill Lee Journal: Asian-Australas J Anim Sci Date: 2016-03-22 Impact factor: 2.509
Authors: Harley Naumann; Rebecka Sepela; Aira Rezaire; Sonia E Masih; Wayne E Zeller; Laurie A Reinhardt; Jamison T Robe; Michael L Sullivan; Ann E Hagerman Journal: Molecules Date: 2018-08-23 Impact factor: 4.411
Authors: Josh L Hixson; Zoey Durmic; Joy Vadhanabhuti; Philip E Vercoe; Paul A Smith; Eric N Wilkes Journal: Molecules Date: 2018-07-20 Impact factor: 4.411