Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-26T17:49:08.707Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of the addition of starch on the utilization by sheep of the protein and crude fibre contained in lucerne hay and soya-bean meal

Published online by Cambridge University Press:  27 March 2009

H. Tagari ,
D. Ben Gedalya ,
Y. Shevach  and
A. Bondi
H. Tagari
Affiliation:
Department of Animal Nutrition and Agricultural Biochemistry, Hebrew University, Faculty of Agriculture, Rehovot, Israel
D. Ben Gedalya
Affiliation:
Department of Animal Nutrition and Agricultural Biochemistry, Hebrew University, Faculty of Agriculture, Rehovot, Israel
Y. Shevach
Affiliation:
Department of Animal Nutrition and Agricultural Biochemistry, Hebrew University, Faculty of Agriculture, Rehovot, Israel
A. Bondi
Affiliation:
Department of Animal Nutrition and Agricultural Biochemistry, Hebrew University, Faculty of Agriculture, Rehovot, Israel
Get access Rights & Permissions [Opens in a new window]

Summary

A sheep-feeding experiment was carried out to compare the influence of starch supplementation on the utilization of protein contained in a roughage (lucerne hay) and in a concentrated feed (soya-bean meal). Twelve young rams were divided into four groups, all of which received 150% of the theoretical protein requirement for maintenance. Two groups received soya-bean meal, and the two other groups were given alfalfa hay as protein source. One soya-bean group and one lucerne hay group served as control groups and received the theoretical requirement of energy, whereas the energy content of both experimental groups was raised by addition of grain to 150% of the theoretical energy requirement.

A N-balance experiment carried out with both control groups did not indicate the superiority of lucerne hay over soya-bean meal as had been found in previous experiments in which the sheep were fed diets just supplying the theoretical protein requirement. The advantage of roughage protein disappeared as a result of changes of dietary regime, such as the ingestion of protein surpluses and the reduction in the amount of cottonseed hulls.

The N retention from the lucerne-hay ration was enhanced much more than the soya-bean meal ration by the addition of maize. Biochemical analyses of the rumen oontent showed that a much higher metabolic activity of the micro-organisms was induced by feeding a lucerne-hay diet supplying 150% of the theoretical protein requirement than that induced by ingestion of a corresponding amount of soya-bean meal. It was concluded that the increased biochemical potential of the lucerne-hay diet could be used advantageously only in presence of ample amounts of soluble carbohydrates. The digestibility of the carbohydrates contained in all four diets was examined by in vivo and in vitro methods. The digestibility of crude fibre in the lucerne-hay ration was somewhat raised by the addition of maize whereas the digestibility of crude fibre in the soya-bean meal ration was considerably depressed by the addition of maize.

The digestibility of the carbohydrates contained in all four diets was examined by in vivo and in vitro methods. The digestibility of crude fibre in the lucerne-hay ration was somewhat raised by the addition of maize whereas the digestibility of crude fibre in the soya-bean meal ration was considerably depressed by the addition of maize.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 77 , Issue 3 , December 1971 , pp. 413 - 425
Copyright
Copyright © Cambridge University Press 1971

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

Abou Akada, A. R. & Sayed Osman, H. E. (1967). The use of ruminal ammonia and blood urea as an index of the nutritive value of the protein in some food-stuffs. J. agric. Sci., Camb. 69, 25–31.CrossRefGoogle Scholar
Association of Official Agricultural Chemists (1965). Method of Analysis, 9th ed.Washington, D.C.: Association of Official Agricultural Chemists.Google Scholar
Bondi, A. & Neumark, H. (1960). Chemical composition of feeding stuffs for cattle and sheep. In Agricultural Yearbook, pp. 249–69 (in Hebrew). Tel-Aviv: Hassadeh Publishing Corp.Google Scholar
Champton, E. W., Donefer, E. & Lloyd, L. E. (1960). A nutritive value index for forages. J. Anim. Sci. 19, 538–44.CrossRefGoogle Scholar
Dror, Y., Mayevsky, A. & Bondi, A. (1969). Some effects of starch on protein utilization by sheep. Br. J. Nutr. 23, 726–35.CrossRefGoogle ScholarPubMed
Dror, Y., Tagari, H. & Bondi, A. (1970). The efficiency of utilization of proteins contained in roughages, soya bean oil meal or mixtures of both, by sheep. J. agric. Set., Camb. 75, 381–92.CrossRefGoogle Scholar
Elliot, R. C., French, C. H. & Flokersten, K. (1961). Protein biological values for beef cattle. Rhod. Agric. J., 58, 131–35.Google Scholar
El Shazly, K., Dehority, B. A. & Johnson, R. R. (1961). Effects of starch on the digestion of cellulose in vitro and in vivo by rumen microorganisms. J. Anim. Sci., 20, 268–73.Google Scholar
Glover, J., Duthie, D. W. & French, M. H. (1957). The apparent digestibility of crude protein by the ruminant. I. A synthesis of the results of digestibility trials with herbage and mixed feeds. J. agric. Sci., Camb. 48, 373–77.CrossRefGoogle Scholar
Head, M. J. & Murdoch, J. C. (1965). The influence of supplements of flaked maize on the digestibility by steers of silage, fresh lucerne and lucerne hay. J. Br. Grassld Soc. 20, 106–109.CrossRefGoogle Scholar
Jarrige, R. (1961). Analyse desconstituants glucidiques des plantes fourragfères. Annls Biol. anim. Biochim Biophys. 1, 163–212.CrossRefGoogle Scholar
Maynard, L. A. & Loosli, I. K. (1962). Animal Nutrition, 5th ed., p. 306. New York, Toronto, London: McGraw-Hill.Google Scholar
Meyer, R. M., Bartley, E. E. & Deyoe, C. W. (1965). Bloat in cattle. VII. Relation to amino acid composition in alfalfa as affected by maturity. J. Dairy Sci. 48, 213–16.CrossRefGoogle ScholarPubMed
Mitchell, H. H. (1943). Biological methods of measuring the protein value of feeds. J. Anim. Sci. 2, 263–77.CrossRefGoogle Scholar
Rosen, H. (1957). A modified ninhydrin colorimetrio analysis for amino acids. Archs Biochem. Biophys. 67, 10–15.CrossRefGoogle ScholarPubMed
Tagari, H. (1969). Comparison of the efficiency of proteins contained in lucerne hay and soya-bean meal for sheep. Br. J. Nutr. 23, 455–70.CrossRefGoogle ScholarPubMed
Tagari, H., Dror, Y., Ascarelli, I. & Bondi, A. (1964). The influence of levels of protein and starch in rations of sheep on the utilization of protein. Br. J. Nutr. 18, 333–56.CrossRefGoogle ScholarPubMed
Tagari, H., Krol, O. & Bondi, A. (1965). Different efficiency of proteins contained in roughages and concentrates for ruminants. Nature, Lond. 206, 37–8.CrossRefGoogle ScholarPubMed
Tilley, J. M. A. & Terry, R. A. (1963). A two-stage technique for the in vitro digestion of forage crops. J. Br. Grassld Soc. 18, 104–111.CrossRefGoogle Scholar
Van den Hende, C., Oyaert, W. & Bouckaert, I. H. (1963). Metabolism of glycine, alanine, valine, leucine and isoleucine by rumen bacteria. Res. vet. Sd. 4, 382–9.CrossRefGoogle Scholar