protein amino acids protein metabolism protein degrdable protein by pass protein animal nutrition animals animal feeding livestock feeding poultry breeding aminoacids nutrition metabolic disorders microbial protein dairy cows feeding ruminants vitamins minerals amine structureenzymes enzymes transformation poultry feeding energy nitrogen substances npn sources rudp dairy cow parturation cow parturation plant biosecurity poultry rendring rendring plant poultry biosecurity monogastric musscles rna synthesis
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