Reducing enteric methane and carbon dioxide emissions from cattle is a key strategy in mitigating climate change impacts. This study explored the relationship between enteric methane production and economically important traits such as growth and carcass quality in beef cattle. Methane and carbon dioxide emission data was available on 1,835 beef animals who also had performance measures such as feed intake, carcass weight, and age at finish. This study demonstrated that selection for reduced methane emissions is associated with slower animal growth rates and lighter carcasses, which are unfavorable characteristics for beef producers. This research highlights the need for balancing reductions in methane whilst maintaining the quality and efficiency of beef production.

Read the full article in the Journal of Animal Science.