Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-29T23:39:56.289Z Has data issue: false hasContentIssue false
  • English
  • Français

111. The Nutritive Value of Proteins for Maintenance

Published online by Cambridge University Press:  01 June 2009

Samuel Morris  and
Norman C. Wright
Samuel Morris
Affiliation:
The Hannah Dairy Research Institute, Kirkhill, Ayr.
Norman C. Wright
Affiliation:
The Hannah Dairy Research Institute, Kirkhill, Ayr.
Get access Rights & Permissions [Opens in a new window]

Extract

The results of the present experiments may be summarised as follows:

(1) When minimal quantities of protein are fed in the maintenance rationof steers, a deficiency of lysine will lead to a marked increase in the urinary N output. A deficiency of cystine has no effect.

(2) The catabolism of body tissue is shown by the high creatine excretionand the S: N ratio of the excess S and N excreted. This is probably the resultof excessive deamination with the production of a mild acidosis.

(3) As regards urinary partition of N there is some indication that alysine-deficient diet causes a decreased percentage excretion of urea N and anincrease of ammonia N.

(4) The biological values have been calculated, the only marked difference occurring with wheat gluten, a protein very deficient in lysine

(5) An approximate value for the lysine requirements for maintenance has been calculated, i.e. 0·80 g. lysine N per 1000 lb. live weight.

Type
Original Articles
Information
Journal of Dairy Research , Volume 6 , Issue 3 , September 1935 , pp. 289 - 302
Copyright
Copyright © Proprietors of Journal of Dairy Research 1935

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

(1) Abmsby, (1928). The Nutrition of Farm Animals. New York: The MacMillan Co.Google Scholar
(2) Kellner, (1907). Landw. VersSta. 43, 548.Google Scholar
(3) Hansson, (1926). Fütterung der Haustiere. Dresden: Steinkopff.Google Scholar
(4) Haecker, (1903). Bull. Minn, agric. Exp. Sta. No. 79.Google Scholar
(5) Savage, (1912) Bull. Cornell agric. Exp. Sta. No. 323.Google Scholar
(6) Hills, (1922) Bull. Vt agric. Exp. Sta. No. 226.Google Scholar
(7) Morris, and Wright, (1933). J. Dairy Res. 4, 177.Google Scholar
(8) Morris, and Wright, (1933). J. Dairy Res. 5, 1.CrossRefGoogle Scholar
(9) Mitchell, (1929). The Biochemistry of the Amino Acids. New York: The MacMillan Co.Google Scholar
(10) Wilson, (1931). J. Physiol. 72, 327.Google Scholar
(11) Remington, and Bebber, (1932). Nature, Lond., 129, 687.Google Scholar
(12) Fraser, and Roberts, (1932). Nature, Lond. 130, 473.Google Scholar
(13) Woodman, and Evans, (1932). Nature, Lond. 130, 1001.CrossRefGoogle Scholar
(14) Morris, (1934). J. Dairy Res. 5, 108Google Scholar