Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-23T15:40:59.913Z Has data issue: false hasContentIssue false
  • English
  • Français

The utilization of gelled maize starch in the small intestine of sheep

Published online by Cambridge University Press:  09 March 2007

R. W. Mayes  and
E. R. Ørskov
R. W. Mayes
Affiliation:
The Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
E. R. Ørskov
Affiliation:
The Rowett Research Institute, Bucksburn, Aberdeen AB2 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. A solution of gelled maize starch and Cr-EDTA was continuously infused for 4 weeks via the abomasum into sheep of different ages. The proportions of infused α-glucoside passing the terminal ileum as glucan (ethanol-precipitable α-glucoside), dextrins (ethanol-soluble glucose polymers) and glucose, and the glucan and over-all α-glucoside disappearances in the small intestine were determined. Ethanol-soluble α-glucoside compounds in ileal digesta were further separated by paper chromatography.

2. Glucan was efficiently degraded, since little reached the terminal ileum. Most of the α-glucoside in ileal digesta consisted of glucose and dextrins (mainly short chain length oligosaccharides), suggesting that α-amylase activity was not limiting over-all starch utilization.

3. No adaptation of intestinal starch utilization was evident except that the proportion of infused α-glucoside passing the terminal ileum as glucose decreased with time.

4. A negative correlation existed between the pH and the total α-glucoside content of the ileal digesta, possibly relating to changes in the microbial activity.

5. The advantages and disadvantages of feeding with starch so as to by-pass rumen fermentation are discussed.

Type
General Nutrition
Information
British Journal of Nutrition , Volume 32 , Issue 1 , July 1974 , pp. 143 - 153
Copyright
Copyright © The Nutrition Society 1974

References

REFERENCES

Armstrong, D. G. (1965). In Physiology of Digestion in the Ruminant p. 272 [Dougherty, R. W., editor’. London: Butterworths.Google Scholar
Armstrong, D. G. & Beever, D. E. (1969). Proc. Nutr. Soc. 28, 121.CrossRefGoogle Scholar
Armstrong, D. G. & Blaxter, K. L. (1957). Br. J. Nutr. XI, 413.CrossRefGoogle Scholar
Armstrong, D. G., Blaxter, K. L. & Graham, N. McC. (1960). Proc. Nutr. Soc. 19, xxxi.Google Scholar
Binnerts, W. T., van't Klooster, A. T. & Frens, A. M. (1968). Vet. Rec. 82, 470.Google Scholar
Capdeville, Y., Frezal, J., Jos, J., Rey, J. & Lamy, M. (1967). C. r. hebd. Séanc. Acad. Sci., Paris, Ser. D 264, 519.Google Scholar
Clary, J. J., Mitchell, G. E. & Little, C. O. (1967). J. Anim. Sci. 26, 917.Google Scholar
Clary, J. J., Mitchell, G. E., Little, C. O. & Bradley, N. W. (1969). Can. J. Physiol. Pharmac. 47, 161.Google Scholar
Dahlqvist, A. (1964). Analyt. Biochenm. 7, 18.CrossRefGoogle Scholar
Hembry, F. G., Bell, M. C. & Hall, R. F. (1967). J. Nutr. 93, 175.CrossRefGoogle Scholar
Hungate, R. E. (1966). The Rumen and its Microbes, p. 60. New York and London: Academic Press.Google Scholar
Little, C. O., Mitchell, G. E. & Reitnour, C. M. (1968). J. Anim. Sci. 27, 790.CrossRefGoogle Scholar
MacRae, J. C. & Armstrong, D. G. (1968). J. Sci. Fd Agric. 19, 578.CrossRefGoogle Scholar
Mansford, K. R. L. (1967). Proc. Nutr. Soc. 26, 27.CrossRefGoogle Scholar
Mathieson, J. (1970). Proc. Nutr. Soc. 29, 30A.Google Scholar
Mayes, R. W. & Ørskov, E. R. (1972). Proc. Nutr. Soc. 31, 64A.Google Scholar
Ørskov, E. R. (1969). Rewtu cub. Cienc. agric. (English ed.) 3, 1.Google Scholar
Ørskov, E. R. & Benzie, D. (1969). Br. J. Nutr. 23, 415.CrossRefGoogle Scholar
Ørskov, E. R., Fraser, C. & Kay, R. N. B. (1969). Br. J. Nutr. 23, 217.CrossRefGoogle Scholar
Ørskov, E. R., Fraser, C., Mason, V. C. & Mann, S. O. (1970). Br. J. Nutr. 24, 671.CrossRefGoogle Scholar
Ørskov, E. R. & McDonald, I. (1970). In Energy Metabolism of Farm Animals p. 121 [Schurch, A. and Wenk, C., editors’. Zurich: Jures Verlag.Google Scholar
Ørskov, E. R.Mayes, R. W. & Mann, S. O. (1972). Br. J. Nutr. 28, 425.CrossRefGoogle Scholar
Reddy, B. S., Pleasants, J. R. & Wostmann, B. S. (1968). J. Nutr. 95, 413.CrossRefGoogle Scholar
Stevenson, A. E. & Clare, N. T. (1963). N.Z. Jl agric. Res. 6, 121.CrossRefGoogle Scholar
Walker, D. M. (1959). J. agric. sci., Camb. 53, 374.CrossRefGoogle Scholar
Whistler, R. L. & Hickson, J. L. (1955). Analyt. Chem. 27, 1514.CrossRefGoogle Scholar
White, R. G., Williams, V. J. & Morris, R. J. H. (1971). Br. J. Nutr. 25, 57.CrossRefGoogle Scholar