title: Growth and reproductive performance of bulls and heifers fed purified and natural diets. V. Free amino acids in the semen and blood plasma of bulls (puberty to 148 weeks of age).
mesh_terms: D000367:Age Factors; D000596:Amino Acids / Q000032:analysis* / Q000097:blood; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002417:Cattle / Q000254:growth & development / Q000502:physiology*; D004044:Dietary Proteins; D005260:Female; D005298:Fertility; D008297:Male; D009584:Nitrogen / Q000494:pharmacology; D012661:Semen / Q000032:analysis*; D014508:Urea / Q000494:pharmacology
chemical_list: D000596:Amino Acids; D004044:Dietary Proteins; D014508:Urea; D009584:Nitrogen