The microbiological assay of the "essential" amino-acids in compound feedingstuffs.
D000596:Amino Acids / Q000032:analysis*; D001419:Bacteria / Q000378:metabolism; D001681:Biological Assay; D003470:Culture Media; D006868:Hydrolysis; D008722:Methods; D008832:Microchemistry; D009751:Nutritional Requirements
D000596:Amino Acids; D003470:Culture Media