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Cereal processing and food utilization by sheep 2. A note on the effect of feeding unprocessed barley, maize, oats and wheat on food utilization by early-weaned lambs

Published online by Cambridge University Press:  02 September 2010

E. R. Ørskov ,
C. Fraser  and
I. McHattie
E. R. Ørskov
Affiliation:
The Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
C. Fraser
Affiliation:
The Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
I. McHattie
Affiliation:
The Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
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Summary

An experiment was carried out with 64 lambs to determine the digestibility and efficiency of food utilization of barley, maize, oats and wheat when they were offered whole and loose, or roughly ground and pelleted.

Apparent digestibilities of the organic matter (%) for the four cereals in the order given above were 81·1, 84·3, 69·9 and 82·7 for the whole and 77·2, 82·1, 67·5 and 86·6 for the ground and pelleted grains. The corresponding live-weight gains (g/day) were 340, 345, 241 and 303, and 347, 346, 238 and 323. The corresponding conversions of dry matter (kg) to live-weight gain (kg), over the growth period from 15 to 35 kg weight, were 2·75, 2·52, 3·07 and 2·97 and 2·79, 2·62, 3·33 and 2·56.

Type
Research Article
Information
Animal Production , Volume 18 , Issue 1 , February 1974 , pp. 85 - 88
Copyright
Copyright © British Society of Animal Science 1974

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References

REFERENCES

Andrews, R. P. and Ørskov, E. R. 1970. A note on the effect of bulk density and digestibility on the voluntary intake of concentrate diets by sheep of two ages. Anim. Prod. 12: 335–338.Google Scholar
Fraser, C. and Ørskov, E. R. 1974. Cereal processing and food utilization by sheep. 1. The effect of processing on utilization of barley by early-weaned lambs. Anim. Prod. 18: 75–83.Google Scholar
Morrison, F. B. 1956. Feeds and Feeding, 22nd ed. The Morrison Publishing Co., Ithaca, New York.Google Scholar
Ørskov, E. R. 1973. The effect of not processing barley on rumenitis in sheep. Res. vet. Sci. 14: 110–112.CrossRefGoogle Scholar
Ørskov, E. R. and Fraser, C. 1974. The effect of processing of cereals and digestibility, type of rumen fermentation and firmness of subcutaneous fat in lambs. Br. J. Nutr. (in press).Google Scholar