Hostname: page-component-848d4c4894-nmvwc Total loading time: 0 Render date: 2024-06-25T21:07:31.914Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of zinc deficiency on food intake and feeding patterns of rats

Published online by Cambridge University Press:  09 March 2007

J. K. Chesters  and
J. Quarterman
J. K. Chesters
Affiliation:
Rowett Research Institute, Bucksburn, AberdeenAB2 9SB
J. Quarterman
Affiliation:
Rowett Research Institute, Bucksburn, AberdeenAB2 9SB
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 effects of alterations of the protein and zinc concentrations of a semi-synthetic diet on the food intake and dietary preferences of Zn-deficient and normal rats have beencompared.

2. The voluntary food intake of Zn-deficient rats fell to 70% 96 of that of the controls. The day-to-day variation of intake increased markedly and was associated with a cyclical pattern of food consumption. When the food intake of deficient rats was slightly restricted the troughs of the cycles disappeared.

3. Concurrent with the fall in food intake, Zn-deficient rats ceased to gain weight, but a similar change was found with pair-fed controls.

4. Force-feeding Zn-deficient rats with 140 % of their voluntary intake rapidly induced signs of ill-health.

5. Reduction of the protein content of the diet from 20 to 5 % resulted in an increased food intake and the disappearance of the cyclical pattern of intake. Growth, however, was not renewed.

6. Zn-deficient rats responded to a Zn-supplemented diet within 1–2 h by an increased food intake.

7. Zn-deficient rats were able to discriminate between diets containing 6 and I ppm Zn when both diets were offered simultaneously.

8. The responses of Zn-deficient rats to Zn-containing diets did not occur if the diets did not contain protein.

Type
Research Article
Information
British Journal of Nutrition , Volume 24 , Issue 4 , December 1970 , pp. 1061 - 1069
Copyright
Copyright © The Nutrition Society 1970

References

REFERENCES

Chick, H., Macrae, T. F. & Worden, A. N. (1940). Biochem. J. 34, 580.CrossRefGoogle Scholar
Forbes, R. M. & Vaughan, L. (1954). J. Nutr. 52, 25.CrossRefGoogle Scholar
Henkin, R. I. & Bradley, D. F. (1969). Proc. natn. Acad. Sci. U.S.A. 62, 30.CrossRefGoogle Scholar
Hsu, J. M., Anthony, W. L. & Buchanan, P. J. (1968). Proc. Soc. exp. Biol. Med. 127, 1048.CrossRefGoogle Scholar
Hsu, J. M., Anthony, W. L. & Buchanan, P. J. (1969). J. Nutr. 97, 279.CrossRefGoogle Scholar
Humphries, W. R. & Quarterman, J. (1968). Proc. Nutr. Soc. 27, 54A.Google Scholar
Krehl, W. A., Sarma, P. S., Teply, L. J. & Elvehjem, C. A. (1946). J. Nutr. 31, 85.CrossRefGoogle Scholar
Quarterman, J., Williams, R. B. & Humphries, W. R. (1970). Br. J. Nutr, 24, 1049.CrossRefGoogle Scholar
Williams, R. B. & Mills, C. F. (1970). Br. J. Nutr. 24, 989.CrossRefGoogle Scholar