28th August 2017

Methane reduction and feed supplementation

Livestock is responsible for 3.1 Gigaton of methane (CH4) emissions globally. This is 44% of all anthropogenic CH4, which is equivalent to 21-36 times the global warming potential of CO2. The demand for meat and dairy is expected to double by 2050 (FAO).

Seaweed supplementation has been proven to significantly reduce methane output of dairy cows, while improving the health of the individual cow and the cost-benefit ratio for the dairy farmer. The result is a more favorable conversion rate of food required per liter of milk produced as well as a significant reduction of land use and climate impact of milk and milk products, like cheese.

Based on preliminary studies we estimate our impact to be between 30-75% of total CH4 emissions per liter of (fat corrected) milk. For the Dutch dairy sector alone this would constitute a potential reduction of 5- 13 Megaton of CH4 in CO2 equivalent for the entire population of Dutch cows, 2,6%- 7,0% of the total GHG emissions of the Netherlands. At a global level the potential of reducing CH4 from enteric fermentation is  0,6 – 1,5 Gigaton.

We have formed a collaboration with a Seaweed Supplement Trader to measure and quantify the positive impact of seaweed supplementation on CH4 reduction in Dutch dairy cows.