Effect of dietary fat supplementation on methane emissions from dairy cows fed wheat or corn
PS Alvarez-Hess, SRO Williams, JL Jacobs, MC Hannah, KA Beauchemin, RJ Eckard, WJ Wales, GL Morris, PJ Moate
JOURNAL OF DAIRY SCIENCE | ELSEVIER SCIENCE INC | Published : 2019
Diets that contain high proportions of either wheat or supplementary fat have been individually reported to reduce enteric methane production. The objective of this research was to determine the effect of dietary fat supplementation on methane emissions and milk yield from cows fed diets containing either corn or wheat grains. It was hypothesized that cows fed a diet containing wheat would produce less methane and have lower methane yield (methane per kg of dry matter intake; MY) than cows fed a diet containing corn and that methane mitigation from fat supplementation would occur irrespective of the type of grain in the basal diet. The experiment involved 32 Holstein-Friesian dairy cows allo..View full abstract
This investigation was funded by the Victorian Department of Economic Development, Jobs, Transport and Resources; Emissions Reduction, Alberta, Canada; and Dairy Australia. This work would not have been possible without the excellent support of the technical staff at Department of Economic Development, Jobs, Transport and Resources (Victoria, Ellinbank Centre, Australia).