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Climate projections for Western Australia (WA) are that average annual temperature will increase by 1.1–2.7°C in a medium-emission scenario, and 2.6–5.1°C in a high-emission scenario by the end of
Mating ewes earlier (at 8 to 10 months of age) could enable farmers to reduce whole-farm methane production because this practice would reduce the number of adult ewes, which produce more methane.
Improved grazing and feeding management of sheep can reduce methane emissions per unit of product (feed efficiency) or emissions per unit of feed intake (methane yield).
Feed intake and methane emissions are influenced by the digestibility of the pasture and the concentration of plant secondary compounds such as tannins.
Feed additives or supplements can reduce methane emissions from ruminant livestock.
Western Australia's climate has changed over the last century, particularly over the last 50 years. Average temperature has risen about 1°C.
Nitrous oxide, a highly active greenhouse gas, is released from pastures and crops using nitrogen fertilisers.
Pastures that reduce methane emissions can be categorised into high quality grasses and legumes, and plants containing secondary metabolites such as tannins.
Managing manure to reduce emissions can be economically viable for larger enterprises or cooperative facilities that use the captured methane to generate heat and electricity.
Spreading clay on light, sandy soils helps to increase soil water holding capacity, retain nutrients and overcome water repellence.