Cows fed small amount of seaweed burp 86 per cent less methane in trial

Feeding cattle a small amount of a seaweed species found in Australia has been shown to reduce their methane emissions by up to 86 per cent.

Supplementing either 0.25 per cent or 0.5 per cent of a cow’s daily feed with Asparagopsis taxiformis — a red seaweed native to Australian coastal waters — resulted in an average drop in methane production of over 50 per cent and 74 per cent respectively over a…