Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-25T00:53:00.659Z Has data issue: false hasContentIssue false
  • English
  • Français

Digestibility trials with poultry. XI. The digestibility and metabolizable energy of raw and cooked potatoes, potato flakes, dried potato slices and dried potato shreds

Published online by Cambridge University Press:  27 March 2009

E. T. Halnan
E. T. Halnan
Affiliation:
Poultry Nutrition Section, Animal Nutrition Institute, School of Agriculture, Cambridge
Get access Rights & Permissions [Opens in a new window]

Extract

A series of digestibility trials on fowls with a number of potato products led to the following conclusions:

1. Raw potatoes, though readily consumed by fowls when mixed with other foods, are not readily utilized, the potato starch largely escaping digestion.

2. Boiled potatoes are readily utilized by the fowl, the preliminary cooking altering the structure of the starch grain in such a way as to render the starch readily digestible.

3. The energy derived from 1 lb. of cooked potatoes is, in the fowl, equivalent to the energy derived from no less than 5 lb. of raw potatoes.

4. The food value of dried potato products is shown to be dependent upon the nature of the heat treatment to which the potatoes are subjected in the preliminary treatment of drying.

5. Dried potato slices of the type produced in sugar-beet factory driers have a value approximating that of well-boiled potatoes, both values being compared on a dry-matter basis.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 34 , Issue 3 , July 1944 , pp. 139 - 154
Copyright
Copyright © Cambridge University Press 1944

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Fangauf, R. & Haensel, A. (1939). Arch. Geflügelk. 13, 328–34.Google Scholar
Gutteridge, H. S. (1937). Sci. Agric. 17, 340.Google Scholar
Halnan, E. T. & Fermor, C. E. (1942). Agriculture, 49, 175–9.Google Scholar
Kennard, D. C. (1936). Biom. Bull. Ohio Agric. Exp. Sta. No. 182.Google Scholar
Klooster, M. J. & Card, C. G. (1936). Quart. Bull. Mich. Agric. Exp. Sta. 19, 104–8.Google Scholar
Sweetman, M. D. (1933). Nutrit. Abstr. 4, 299.Google Scholar
Wigersma, H. R. (1932) Nutrit. Abstr. 2, 173.Google Scholar