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The digestibility by Friesian steers of dry and acid-treated moist barley offered either whole or rolled in diets containing roughage

Published online by Cambridge University Press:  02 September 2010

F. A. Ahmed ,
J. H. Topps  and
D. G. Dempster
F. A. Ahmed
Affiliation:
School of Agriculture, 581 King Street, Aberdeen AB9 1UD
J. H. Topps
Affiliation:
School of Agriculture, 581 King Street, Aberdeen AB9 1UD
D. G. Dempster
Affiliation:
School of Agriculture, 581 King Street, Aberdeen AB9 1UD
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Summary

1. The digestibility of dry barley and acid-treated moist barley was studied with eight Friesian steers in two consecutive trials each of a duplicated, 2x2 factorial design. In the first trial the diet consisted of either dry or moist (30%) acid-treated barley in the rolled or whole form together with chopped hay; in the second trial rolled or whole, moist (24%) acid-treated barley was given with either chopped hay or silage.

2. No significant difference between the diets in dry-matter intake was observed in the first trial, but in the second trial there was a significantly greater (P< 0·001) intake of dry matter with the hay than with the silage diets.

3. For diets containing either of the moist barleys the digestibility of crude protein was higher when the grain was rolled than when it was whole, the differences being significant (P<0·05) for diets with the 24%-moisture barley. Dry-matter digestibility also was higher for diets containing rolled rather than whole, moist (24%) barley, the difference being significant (P < 0·05) for diets based on silage.

4. Digestibility of starch was significantly greater (P<0·05) when acid-treated moist (24 or 30%) barley was given in the rolled rather than the whole form. Differences in starch digestibility between whole and rolled dry barley were not significant.

5. For all diets the digestibility of crude fibre was greater when the barley was whole than when it was rolled, the difference being significant (P < 0·05) for diets containing hay.

Type
Research Article
Information
Animal Production , Volume 17 , Issue 2 , October 1973 , pp. 157 - 162
Copyright
Copyright © British Society of Animal Science 1973

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References

REFERENCES

Bailey, N. T. J. 1959. Statistical Method in Biology. English Universities Press, London.Google Scholar
Cochran, W. G. and Cox, G. M. 1957. Experimental Designs (2nd ed.). John Wiley & Sons, London.Google Scholar
Collier, A. 1969. Acid preservation of feed grain. Power Farming, 04 1969, pp. 12–14.Google Scholar
MacRae, J. C. and Armstrong, D. G. 1968. Enzyme method for determination of a-linked glucose polymers in biological materials. J. Sci. Fd Agric. 19: 578–581.CrossRefGoogle Scholar
Preston, T. R., Bowers, H. B., MacLeod, N. A. and Philip, E. B. 1965. Intensive beef production. 6. A note on the nutritive value of high moisture barley stored anaerobically. Anim. Prod. 7: 385–387.Google Scholar
Whttehouse, K., Zarow, A. and Shay, H. 1945. Rapid method for determining ‘crude fibre’ in distillers dried grain. J. Assoc. Off. agric. Chem. 28: 147–152.Google Scholar