ANSC 3120 Lecture Notes - Lecture 10: Trypsin, Coprophagia, Menhaden
27 Mar 2018
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Goal is to meet the eaa requirement rather than protein requirement because protein is the carrier of eaa. Nitrogen will end up in the environment and animals need to get rid of the extra n in their body. Mono and suckling (nursing) ruminants need to be provided with all eaa. Developed ruminants do not need to be fed eaa and protein, meeting the n requirement is enough. Definition for protein supplements are at least 20% cp but this is arbitrary because some high quality forage like alfalfa hay can have over 20% and it is not a supplement. Protein sources can be 5 or 6 depending on how you classify npn. Mixing concentrates with protein supplements (corn and sbm) Mixing protein supplements (sbm and canola for mono; sbm (dip) and bypass protein (uip) for ruminant to both feed the microbe and getting nutr absorbed) Adding aa to protein supplements because aa is cheaper and environmental waste is less.
