In swine industry, the focus is on growing-finishing pigs for the meat production but two phases are very important to consider: the sow from pregnancy to lactation and the piglets which will have to face a drastic change of feed presentation from milk to solid feed and like kids the mixing with others and the separation from the mother. 

Low protein diet are important to be considered for sustainability reasons, but how Nitrogen cycle is managed in animals, what are the key metabolic reactions ? Let's see with Jaap van Milgen.