Effect of Bovaer inclusion in diets with a high proportion of grass-clover silage of different nutritional quality on gas emissions and production performance in dairy cows.

Summary: Farmers want to stop cows from burping methane, which is a gas that warms up our planet. To help, scientists tested a special feed additive called Bovaer. They mixed it into the grass and clover eaten by 48 dairy cows to see what would happen.

The good news? The special feed successfully lowered the amount of methane gas the cows made. The bad news? The cows ate a little less food and gave slightly less milk, especially right after having a calf. Farmers will need to weigh the good for the planet against the slight drop in milk production.