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Chewing behaviour of hay-fed cows given supplements of whole barley and oat grains

Published online by Cambridge University Press:  27 March 2009

C. A. Morgan  and
R. C. Campling
C. A. Morgan
Affiliation:
Wye College (University of London), Ashford, Kent TN25 5AH
R. C. Campling
Affiliation:
Wye College (University of London), Ashford, Kent TN25 5AH
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Summary

Four hay-fed cows were used to study the effects on chewing behaviour of daily supplements of 3 kg whole barley grains, 3 kg whole oat grains or 2·2 kg rolled oats. Both whole grains increased the total time spent chewing by a similar small extent, probably due to a direct physical effect of the grain. The quantity of whole oat grains voided in faeces was lower than that of barley and it is concluded that the quality of chewing is more important than duration in breaking grains and ensuring their subsequent digestion.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 91 , Issue 2 , October 1978 , pp. 415 - 418
Copyright
Copyright © Cambridge University Press 1978

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References

REFERENCES

Balch, C. C. (1950). Factors affecting the utilization of food by dairy cows. Kate of passage of food through the digestive tract. British Journal of Nutrition 4, 361–388.CrossRefGoogle Scholar
Balch, C. C. (1961). Movement of digesta through the digestive tract. In Digestive Physiology and Nutrition of the Ruminant. Proc. 7th Easter School in Agricultural Science, University of Nottingham (ed. Lewis, D.), pp. 23–32. London: Butterworths.Google Scholar
Balch, C. C. (1969). Physiological aspects of efficient utilization of forages. In Proceedings of the 3rd General Meeting of European Grassland Federation. Braunschweig, pp. 245–252.Google Scholar
Balch, C. C. (1971). Proposal to use time spent chewing as an index of the extent to which diets for ruminants possess the physical property for fibrousness characteristic of roughages. British Journal of Nutrition 26, 383–392.CrossRefGoogle ScholarPubMed
Balch, C. C., Kelly, A. & Heim, G. (1951). Factors affecting the utilization of food by dairy cows. 4. The action of the reticulo-omasal orifice. British Journal of Nutrition 5, 207–215.CrossRefGoogle ScholarPubMed
Campling, R. C. (1966). The effect of concentrate on the rate of disappearance of digesta from the alimentary tract of cows given hay. Journal of Dairy Research 33, 13–23.CrossRefGoogle Scholar
Castle, E. J. (1956). The rate of passage of foodstuffs through the alimentary tract of the goat. 1. Studies on adult animals- fed on hay and concentrates. British Journal of Nutrition 10, 15–23.CrossRefGoogle ScholarPubMed
Crampton, E. W. & Maynard, L. A. (1938). The relation of cellulose and lignin content to the nutritive value of animal feeds. Journal of Nutrition 15, 383–395.CrossRefGoogle Scholar
Mathieson, J. (1970). The automated estimation of chromic oxide. Proceedings of the Nutrition Society 29, 30–31A.Google Scholar
Nordin, M. & Campling, R. C. (1976a). Effect of the amount and form of roughage in the diet on digestibility of whole maize grain in cows and steers. Journal of Agricultural Science, Cambridge 87, 213–219.CrossRefGoogle Scholar
Nordin, M. & Campling, R. C. (1976b). Digestibility studies with cows given whole and rolled cereal grains. Animal Production 23, 305–315.Google Scholar
Wilson, G. F., Adeeb, N. N. & Campling, R. C. (1973). Apparent digestibility of maize grain when given in various physical forms to adult sheep and cattle. Journal of Agricultural Science, Cambridge 80, 259–267.CrossRefGoogle Scholar
Zink, F. J. (1935). Specific gravity and air space of grains and seeds. Agricultural Engineering, St Joseph, Michigan, 16, 439–440.Google Scholar