title: Effect of dietary protein-energy ratios on digestion and growth of Holstein calves at ages 8 to 18 weeks, and on free amino acids in blood.
mesh_terms: D000367:Age Factors; D000596:Amino Acids / Q000097:blood*; D000818:Animals; D002417:Cattle / Q000254:growth & development* / Q000378:metabolism; D004032:Diet; D004044:Dietary Proteins / Q000378:metabolism*; D004063:Digestion; D008297:Male; D013025:Glycine max; D003313:Zea mays
chemical_list: D000596:Amino Acids; D004044:Dietary Proteins