Hostname: page-component-76fb5796d-25wd4 Total loading time: 0 Render date: 2024-04-28T06:46:39.498Z Has data issue: false hasContentIssue false
  • English
  • Français

The optimal amino acid supplementation of barley for the growing pig

1. Response of nitrogen metabolism to progressive supplementation

Published online by Cambridge University Press:  08 December 2008

M. F. Fuller ,
R. M. Livingstone  and
Barbara A. Baird
M. F. Fuller
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen, AB2 9SB
R. M. Livingstone
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen, AB2 9SB
Barbara A. Baird
Affiliation:
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. In five experiments, involving 142 female pigs weighing on average 33 kg, estimates were made of the amounts of essential amino acids which minimized urinary N excretion when diets with barley as the only source of protein were given at the rate of 120 g/kg0.75 per d.

2. With additions of lysine (4.0 g/kg diet) and threonine (1.2 g/kg diet) to barley urinary N excretion decreased from 0.91 to 0.36 g/kg0.75 per d, corresponding to an increase in biological value (BV) from 0.51 to 0.86.

3. With these additions of lysine and threonine, there were no responses to additions of tryptophan, methionine or isoleucine, or to further additions of lysine or threonine, but addition of histidine significantly reduced N excretion.

4. No optimal addition of histidine could be determined; the mean rate of N excretion after addition of histidine (not less than 0.3 g/kg diet) was 0.27 g/kg0.75 per d, corresponding to a BV of 0.93.

5. There was a variation between pigs from different litters in their responses to added histidine. Those with low rates of N excretion on the unsupplemented diet did not respond to additions of histidine, but those with high rates did.

6. It is concluded that additions of only three amino acids can greatly improve the nutritive value of barley protein for the growing pig and that the amino acid composition of the supplemented protein closely approaches the ideal; it is also similar to whole-body tissue protein.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 41 , Issue 2 , March 1979 , pp. 321 - 331
Copyright
Copyright © The Nutrition Society 1979

References

Agricultural Research Council (1967). The Nutrient Requirements of Farm Livestock No. 3, Pigs. London: Agricultural Research Council.Google Scholar
Aumaitre, A. & Duke, P. H. (1974). Annls Zoorech. 23, 231.CrossRefGoogle Scholar
Aw-Yong, L. M. & Beames, R. M. (1975). Can. J. Anim. Sci. 55, 765.CrossRefGoogle Scholar
Chung, A. S. & Beames, R. M. (1974). Can. J. Anim. Sci. 54, 429.CrossRefGoogle Scholar
Chug-Kwang, E., Khurana, H. & Fisher, H. (1976). J. Neurochem. 26, 1087.Google Scholar
Easter, R. A. & Baker, D. H. (1977). J. Nutr. 107, 120.CrossRefGoogle Scholar
Fuller, M. F. & Crofts, R. M. J. (1977). Br. J. Nutr. 38, 479.CrossRefGoogle Scholar
Fuller, M. F., Livingstone, R. M. & Mennie, I. (1974). Proc. Nutr. Soc. 33, 91A.Google Scholar
Fuller, M. F., Livingstone, R. M. & Mennie, I. (1975). Proc. Nutr. Soc. 34, 99A.Google Scholar
Fuller, M. F., Mennie, I. & Crofts, R. M. J. (1979). Br. J. Nutr. 41, 333.CrossRefGoogle Scholar
Ivan, M. (1974). A nutritional evaluation of wheat for pigs with a particular reference to quality and quantity of protein. PhD Thesis, University of New England.Google Scholar
Marsh, W. H., Fingerhut, B. & Miller, H. (1965). Clin. Chem. 11, 624.CrossRefGoogle Scholar
Matheson, N. A. (1973). Proc. Nutr. Soc. 32, 99A.Google Scholar
Mitchell, H. H. (1950). In Protein and Amino Acid Requirements of Mammals, p. 1 [Albanese, A. A., editor]. New York: Academic Press.Google Scholar
National Research Council (1973). Nutrient Requirements of Domestic Animals No. 2, Nutrient requirements of Swine. Washington, DC: National Academy of Sciences.Google Scholar
Quinn, M. R. & Fisher, H. (1977). J. Nutr. 107, 2044.CrossRefGoogle Scholar
Rérat, A. & Lougnon, J. (1968). Wld Rev. Anim. Prod. 4, 66.Google Scholar
Robbins, K. R., Baker, D. H. & Norton, H. W. (1977). J. Nutr. 107, 2055.CrossRefGoogle Scholar
Rosenberg, H. R. (1959). In Protein and Amino Acid Nutrition, p. 383 [Albanese, A. A., editor]. London: Academic Press.Google Scholar
Rosenberg, H. R. & Eckert, R. E. (1961). Progress in Meeting Protein Needs of Infants and Pre-school Children, p.451. Publ. no. 843. Washington, DC: National Academy of Sciences.Google Scholar
Shmanenkov, N. A. & Burin, V. (1971). Fiziologo-biokhimicheskie osnovy povysheniya produktivnosti sel'skokhozyaistvennykh zhivotnykh, p. 5. Moscow, USSR: Izdatel'stvo Kolos.Google Scholar