Hostname: page-component-745bb68f8f-lrblm Total loading time: 0 Render date: 2025-01-22T08:47:53.955Z Has data issue: false hasContentIssue false
  • English
  • Français

The nitrogen requirement of the weanling kitten

Published online by Cambridge University Press:  24 July 2007

Katherine A. Smalley ,
Quinton R. Rogers ,
James G. Morris  and
Loren L. Eslinger
Katherine A. Smalley
Affiliation:
VM Physiological Sciences, University of California-Davis, Davis, California 95616, USA
Quinton R. Rogers
Affiliation:
VM Physiological Sciences, University of California-Davis, Davis, California 95616, USA
James G. Morris
Affiliation:
VM Physiological Sciences, University of California-Davis, Davis, California 95616, USA
Loren L. Eslinger
Affiliation:
VM Physiological Sciences, University of California-Davis, Davis, California 95616, USA
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

1. The nitrogen requirement of the weanling kitten was determined in a series of three experiments. In each experiment, diets were formulated to provide the growing kitten with the essential amino acids at or above the level of requirement. Expt 1 utilized a 4 x 4 balanced Latin square design with two groups of kittens (four male and four female). The crystalline L-amino acid diets were presented at four levels of dietary crude protein (N x 6.25) of 140, 160, 180 and 200 g/kg diet. The design for Expts 2 and 3 was a 6 x 6 balanced Latin square. For each of these experiments, groups of six male and six female kittens were assigned to diets. The six levels of dietary crude protein were 120, 140, 160, 180, 200 and 220 g/kg diet; dietary N was supplied by crystalline L-amino acids for Expt 2 and casein plus a supplementary amino acid mix for Expt 3. Food intake, weight gain and N retention were determined in each experiment.

2. A sigmoidal model y =P1+ P2/[1 +e(p2+p4. x)] was fitted to the response of weight gain and N retention to dietary N. The calculated requirement (95% of the upper asymptote, P1 + P2) for these experiments varied from 170 to 230 g protein/kg diet with the majority of these values falling between 180 and 200 g protein/kg.

3. On the basis of these three experiments, the kitten's requirement for dietary crude protein is between 180 and 200 g/kg diet (28.8–32.0 gN/kg) for purified diets which provide a calculated 21 MJ metabolizable energ//kg diet.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 53 , Issue 3 , May 1985 , pp. 501 - 512
Copyright
Copyright © The Nutrition Society 1985

References

REFERENCES

Anderson, H. L., Benevenga, N. J. & Harper, H. A. (1968). American Journal of Physiology 214, 1008–1013.CrossRefGoogle Scholar
Anderson, P. A., Baker, D. H., Sherry, P. A. & Corbin, J. E. (1980). American Journal of Veterinary Research 41, 1646–1649.Google Scholar
Anscombe, F. J. & Tukey, J. W. (1963). Technometrics 5, 141–160.Google Scholar
Association of Official Agricultural Chemists. (1975). Official Methods of Analysis, 12th ed. Washington, D. C: Association of Official Agricultural Chemists.Google Scholar
Bernhart, F. W. (1961). Nature 191, 358–360.CrossRefGoogle Scholar
Breuer, L. H. Jr, Pond, W. G., Warner, R. G. & Loosli, J. K. (1964). Journal of Nutrition 82, 499–506.Google Scholar
Bunce, G.E. & King, K. W. (1969). Journal of Nutrition 98, 168–176.Google Scholar
Burger, I. H., Blaza, S. E., Kendall, P. J. & Smith, P. M. (1985). Feline Practice (In the Press).Google Scholar
Burns, R. A., LeFaivre, M. H. & Milner, J. A. (1982). Journal of Nutrition 112, 1843–1853.CrossRefGoogle Scholar
Cochran, W. G. & Cox, G. M. (1957). Experimental Designs2nd ed. New York: Wiley.Google Scholar
Das, T. K. & Waterlow, J. C. (1974). British Journal of Nutrition 32, 353–373.Google Scholar
Dickinson, C. D. & Scott, P. P. (1955). Journal of Physiology 129, 78p.Google Scholar
Dickinson, C. D. & Scott, P. P. (1956). British Journal of Nutrition 10, 311–316.Google Scholar
Draper, N. R. & Smith, H. (1981). Applied Regression Analysis, 2nd ed. New York: Wiley.Google Scholar
Jansen, G. R., Deuth, M. A., Ward, G. M. & Johnson, D. E. (1975). Nutrition Reports International 11, 525–536.Google Scholar
John, A-M. & Bell, J. M. (1976). Journal of Nutrition 106, 1361–1367.Google Scholar
Kendall, P. T., Smith, P. M. & Holme, D. W. (1982). Journal of Small Animal Practice 23, 517–613.Google Scholar
Krehl, W. A. & Welt, I. D. (1948). Federation of American Societies for Experimental Biology Proceedings 7, 166.Google Scholar
Miller, S. A. & Allison, J. B. (1958). Journal of Nutrition 64, 493–501.CrossRefGoogle Scholar
Milner, J. A. (1981). Journal of Nutrition 111, 40–45.Google Scholar
National research council. (1978). Nutrient requirements of domestic animals no. 13, Nutrient Requirements of Cats.Washington, D.C.: National academy of science/national research council.Google Scholar
Ralston, M. (1981). In BMDP statistical software 1981, Sect. 14.2 [Dixon, W. J., chief editor]. Berkeley: University of california press.Google Scholar
Robbins, K. R., Norton, H. W. & Baker, D. H. (1979). Journal of Nutrition 109, 1710–1714.Google Scholar
Rogers, Q. R., Chen, D. M.-Y. & Harper, A. E. (1970). Society for Experimental Biology and Medicine Proceedings 134, 517–522.Google Scholar
Rogers, Q. R. & Morris, J. G. (1982). Journal of Small Animal Practice 23, 521–532.Google Scholar
Rogers, Q. R., Morris, J. G. & Freedland, R. A. (1977). Enzyme 22, 348–356.Google Scholar
Schimke, R. J. (1962). Journal of Biological Chemistry 237, 459–468.Google Scholar
Scott, P. P., Carvalho da silva, A. & Lloyd-jacob, M. A. (1957). In UFAW Handbook on the Care and Management of Laboratory Animals, 2nd ed., p.479 [Worden, A. and Lane petter, A.editors]. London: Universities' Federation for Animal Welfare.Google Scholar
Smalley, K. A., Rogers, Q. R. & Morris, J. G. (1983). British Journal of Nutrition 49, 411–417.Google Scholar
Snedecor, G. W. & Cochran, W. G. (1967). Statistical Methods, 6th ed. Ames: Iowa State University PressGoogle Scholar
Steel, R. G. D. & Torrie, J. H. (1980). Principles and Procedures of Statistics, 2nd ed. New York: Mcgraw-Hill Book Co.Google Scholar