Methane emissions: NorFor have made a minor change in the calculations regarding the amount of methane emissions by giving fatty acids a slightly stronger influence in this update. An increase of fatty acids in the ration decreases the methane emission whereas total dry matter and NDF level increases the methane emission. Later this year we intend on revising the methane equations in NorFor based on recent research results.
Land requirement: New parameter on land requirement as square meters per kg dry matter. It can be used when optimizing rations and it is available as an output from the feed control in the NorFor Feed Ration Optimizer.
Manure handling: Greenhouse gas emissions from storage of manure in slurry tanks or deep bedding and from spreading manure are now included in the NorFor Carbon Footprint Calculator.
NorFor added ration parameters that summarize the total carbon footprint from cows, feed production, and manure handling expressed as KG CO2-equivalents per KG milk as well as KG CO2-equivalents per KG weight gain when doing feed rations for young stock. These can be chosen from the NEW parameter section called 'Climate'.