title: Lysine and arginine requirements of the domestic cat.
abstract: Domestic kittens were used in four experiments to establish quantitative requirements for lysine and arginine. A purified L-amino acid diet (by calculation, 4,700 kcal metabolizable energy/kg diet) was employed throughout. Weight gain, gain:feed and nitrogen retention data of cats fed dietary lysine levels ranging from 0.48 to 1.92% suggested a requirement not exceeding 0.80%. The dietary arginine requirement for maximal gain was assayed at this level of lysine and found to be not greater than 0.83%. A dietary arginine level of 0.33% resulted in vomiting and extreme lethargy within 4 hours of ingestion.
mesh_terms: D000641:Ammonia / Q000506:poisoning; D000818:Animals; D001120:Arginine / Q000008:administration & dosage*; D001835:Body Weight; D002415:Cats / Q000378:metabolism*; D005260:Female; D008239:Lysine / Q000008:administration & dosage*; D008297:Male; D009751:Nutritional Requirements; D014839:Vomiting / Q000139:chemically induced
chemical_list: D000641:Ammonia; D001120:Arginine; D008239:Lysine