Occurrence of intraportally‐infused urea‐¹⁵N in the urine of domestic fowl

References

• Akester , A.R. , Anderson , R.S. , Hill , K.J. and Osbaldiston , G.W. 1967 . A radiographic study of urine flow in the domestic fowl. . British Poultry Science, , 8 : 209 – 212 .
   PubMedGoogle Scholar
• Goldstein , L. 1966 . Relation of glutamate to ammonia production in rat kidney. . American Journal of Physiology, , 210 : 661 – 666 .
   PubMed Web of Science ®Google Scholar
• Itoh , H. , Koike , H. and Kobayashi , S. 1978 . Effects of dietary urea on blood levels of nonprotein nitrogenous compounds in chicks. . Japanese Journal of Zootechnical Science, , 49 : 880 – 888 .
   Google Scholar
• Karasawa , Y. 1978 . Time course changes in concentrations of nitrogenous compounds in blood and urine after methionine sulfoximine treatment in chickens fed high protein diets. . Japanese Journal of Zootechnical Science, , 49 : 450 – 457 .
   Google Scholar
• Karasawa , Y. 1986 . Ammonia production and its contribution to urinary nitrogenous compounds in chickens fed low or high protein diet. . Journal of Nutrition, , 116 : 2378 – 2386 .
   PubMed Web of Science ®Google Scholar
• Karasawa , Y. 1989 . Effect of colostomy on nitrogen nutrition in the chicken fed a low protein diet, plus urea. . Journal of Nutrition, , 119 : 1388 – 1391 .
   PubMed Web of Science ®Google Scholar
• Karasawa , Y. and Koh , K. 1987 . Incorporation of intraportal ammonia‐N into blood and tissue nitrogenous compounds in chickens fed low and high protein diets. . Comparative Biochemistry and Physiology, , 87B : 799 – 802 .
   Google Scholar
• Karasawa , Y. and Nakata , C. 1989 . Incorporation of intraportally infused [15N]ammonia into urinary uric acid in cockerels pretreated with methionine sulfoximine. . British Poultry Science, , 30 : 947 – 952 .
   PubMed Web of Science ®Google Scholar
• Karasawa , Y. , Kawai , H. and Hosono , A. 1988a . Ammonia production from amino acids and urea in the caecal contents of the chicken. . Comparative Biochem istry and Physiology, , 90B : 205 – 207 .
   Google Scholar
• Karasawa , Y. , Okamoto , M. and Kawai , H. 19886 . Ammonia production from uric acid and its absorption from the caecum of the cockerel. . British Poultry Science, , 29 : 119 – 124 .
   PubMed Web of Science ®Google Scholar
• Karasawa , Y. , Tasaki , I. , Shibata , F. and Yokota , H. 1973 . Effect of infused glutamine on uric acid synthesis in chickens fed high and low protein diets. . Journal of Nutrition, , 103 : 526 – 529 .
   PubMed Web of Science ®Google Scholar
• Kobashi , K. and Takebe , S. 1978 . Ureolysis and ammonia production in gut. . Saishin Igaku, , 33 : 1973 – 1977 . (in Japanese)
   Google Scholar
• Koike , T.I. and McFarland , L.Z. 1966 . Urography in the unanesthetized hydropenic chicken. . American Journal of Veterinary Research, , 27 : 1130 – 1133 .
   PubMed Web of Science ®Google Scholar
• Lee , D.J.W. , McNab , J.M. , Shannon , D.W.F. and Blair , R. 1972 . Enzyme studies with the livers of chicks fed semi‐synthetic diets containing crystalline amino acids and diammonium citrate. . British Poultry Science, , 13 : 229 – 235 .
   PubMed Web of Science ®Google Scholar
• McNabb , F.M.A. and McNabb , R.A. 1975 . Proportions of ammonia, urea, urate and total nitrogen in avian urine and quantitative methods for their analysis on a single urine sample. . Poultry Science, , 54 : 1498 – 1505 .
   PubMed Web of Science ®Google Scholar
• Mortensen , A. and Tindall , A.R. 1984 . The role of urea in nitrogen excretion and caecal nitrogen metabolism in Willow ptarmigan. . Journal of Comparative Physiology, , 155B : 71 – 74 .
   Google Scholar
• Okuda , H. and Fuji‐i , S. 1966 . Determination of blood ammonia by the spectroscopic method. . Saishin Igaku, , 21 : 622 – 627 . (in Japanese)
   PubMedGoogle Scholar
• Pudelkiewicz , W.J. , Stutz , W.W. and Matterson , L.D. 1968 . Determination of uric acid in avian excreta by the use of uricase and differential spectrophotometry. . Poultry Science, , 47 : 1274 – 1277 .
   PubMed Web of Science ®Google Scholar
• Skadhauge , E. 1968 . Cloacal storage of urine in the rooster. . Comparative Biochemistry and Physiology, , 24 : 7 – 18 .
   PubMed Web of Science ®Google Scholar
• Snedecor , G.W. and Cochran , W.G. 1967 . Statistical Methods , Ames, IA : Iowa State University Press .
   Google Scholar
• Stutz , M.W. and Metrokotsas , M.J. 1972 . Urease activity in the digestive tract of the chick and metabolism of urea. . Poultry Science, , 51 : 1876 (Abstract)
   Google Scholar