‘Green’ grass hits hurdle

AgResearch scientists have developed a genetically modified ryegrass that cuts greenhouse gas emissions by up to 30% but biotechnology experts warn regulations could delay its use.

Though it has several environmental benefits and could boost production it faces regulatory hurdles here because it has been genetically engineered.

The scientists have shown in the laboratory the ryegrass, called High Metabolisable Energy (HME), can reduce methane emissions from animals by 15% to 30% while modelling suggests a reduction in nitrous oxide of up to 20%.

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