Dairy

Wheat curbs methane and fat: dairy study

peter moate ellinbank

Feeding dairy cows a high proportion of wheat can substantially mitigate methane, but lowers milk fat concentration, according to Victorian research.

Agriculture Victoria researchers at Ellinbank, led by Dr Peter Moate, reported that feeding more than 30% crushed wheat reduced methane emissions, yield and intensity, but substantially reduced cut milk fat concentration.

“Wheat is the most common concentrate fed to grazing dairy cows in Australia, but no studies have examined the effects of wheat proportion in a pasture-based diet on milk production and methane emissions,” the researchers reported.

They measured responses from 32 Holsteins over 47 days for feed intake, milk yield/composition and methane emissions.