Reducing the generation
of N2O by livestock

Combating global warming

Nitrous oxide (N2O) emission is generated from swine manure and poultry litter during drying, storage, waste water treatment, and composting. Nitrogen compounds from manure and urine are oxidized/reduced by soil and air, with some nitrogen being released into the atmosphere as N2O. The greenhouse effect of N2O is about 300 times that of CO2. N2O has the next largest impact on total global warming after CO2 and methane. The use of amino acids can contribute to the prevention of global warming by reducing the amount of nitrogen contained in livestock excrement and so reducing the generation of N2O.

The AJINOMOTO GROUP has been verifying the greenhouse gas (N2O) reduction effect of feed-use amino acids. It is indeed demonstrated that the N2O gas emissions rate per nitrogen content in feed during the animal waste treatment is the same regardless of which type of feed is used and that N2O gas total emissions during the animal waste treatment decline therefore proportionally to the reduction of nitrogen excreted in animal waste.

Reducing dietary CP of feeds by using feed-grade amino acids is thus the most effective nutritional strategy to reduce N2O emission from swine and poultry production.