Nitrogen, ammonia emissions and the dairy cow
Explains how nitrogen fed to cows contributes to ammonia emissions and explores feeding strategies to reduce excess nitrogen in the diet.
Penn State Fact Sheet
Lowered protein diets to reduce nitrogen losses
Presents a description of how low can we go on lowered protein content diets without affecting milk production in order to improve nitrogen efficiency and reduce nitrogen losses from manure.
Penn State 2014 Fact Sheet
Diet strategies to reduce amounts of Nitrogen and Phosphorous in dairy rations
Presents strategies to balance rations and group and feed animals according to their nutrient needs.
Virginia Tech 2009 Fact Sheet