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A note on the effect of bulk density and digestibility on the voluntary intake of concentrate diets by sheep of two ages

Published online by Cambridge University Press:  02 September 2010

R. P. Andrews  and
E. R. Ørskov
R. P. Andrews
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
E. R. Ørskov
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
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Summary

Three pelleted diets based on rolled barley, whole oats and ground oats respectively were offered ad libitum to mature wethers and growing lambs. With wethers, intakes on the whole oat diet were significantly greater than on the barley diet but digestible dry-matter intakes were not significantly different. On average, growing lambs ate significantly greater quantities of the ground oat diet and whereas digestible dry-matter intakes on the ground oat and barley diets were not significantly different, both were higher than on the whole oat diet. Examined at successive live weights, intakes on the whole oat diet were, at 15 kg, initially lower than on the barley diet but were ultimately higher at 60 kg, when there were no significant treatment differences in digestible drymatter intakes.

Type
Research Article
Information
Animal Production , Volume 12 , Issue 2 , May 1970 , pp. 335 - 338
Copyright
Copyright © British Society of Animal Science 1970

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References

REFERENCES

Andrews, R. P., Kay, M. and Ørskov, E. R. 1969. The effect of different dietary energy concentrations on the voluntary intake and growth of intensively fed lambs. Anim. Prod. 11: 173–185.Google Scholar
Brent, B. E., Richardson, D., Tsien, W. S. and Menzies, C. S. 1961. Digestibility studies on levels of concentrates in complete pelleted rations for fattening lambs. J. Anim. Sci. 20: 526–528.CrossRefGoogle Scholar
Montgomery, M. J. and Baumgardt, B. R. 1965. Regulation of food intake in ruminants. 1. Pelleted rations varying in energy concentration. J. Dairy Sci. 48: 569–574.CrossRefGoogle ScholarPubMed
Owen, J. B., Davies, D. A. R., Miller, E. L. and Ridoman, W. J. 1967. The intensive rearing of lambs. 2. Voluntary food intake and performance on diets of varying oat husk and beef tallow content. Anim. Prod. 9: 509–520.Google Scholar
Owen, J. B. and Ridgman, W. J. 1967. The effect of dietary energy content on the voluntary intake of pigs. Anim. Prod. 9: 107–113.Google Scholar
Woods, W. and Rhodes, R. W. 1962. Effect of varying roughage to concentrate rations on the utilisation by lambs of rations differing in physical form. J. Anim. Sci. 21: 479–482.CrossRefGoogle Scholar