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The nutritive value of grass silage self-fed to fattening cattle

Published online by Cambridge University Press:  01 October 1961

J. A. M. Kerr ,
W. O. Brown  and
J. Morrison
J. A. M. Kerr
Affiliation:
Ministry of Agriculture, Northern Ireland and The Agricultural Research Institute, Hillsborough
W. O. Brown
Affiliation:
Ministry of Agriculture, Northern Ireland and The Agricultural Research Institute, Hillsborough
J. Morrison
Affiliation:
Ministry of Agriculture, Northern Ireland and The Agricultural Research Institute, Hillsborough
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Extract

1. High and low dry-matter silages were fed to fattening bullocks on the self-feed system giving daily live-weight increases per head per day of 2·6 lb. and 1·7lb. respectively, over a feeding period of 10 weeks.

2. Chemical data on the composition of a low dry-matter silage and high dry-matter silage are presented.

3. Digestibility studies using sheep were carried out to obtain the starch equivalent values of the two types of silage. The starch equivalent of the high dry-matter silage was 12·4 while that of the low dry-matter silage was 9·9. This difference in starch equivalent explains the extra 0·9 lb. per head per day live-weight increase made by the bullocks on the high dry-matter silage.

4. Mineral balances were carried out. The results show that the low dry-matter silage would supply an inadequate amount of calcium for satisfactory production.

Type
Research Article
Information
Animal Production , Volume 3 , Issue 3 , October 1961 , pp. 321 - 325
Copyright
Copyright © British Society of Animal Science 1961

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References

REFERENCES

Blaxter, K. L., Wainman, F. W., & Wilson, R. S., 1961. The regulation of food intake by sheep. Anim. Prod., 3: 51.Google Scholar
Brown, W. O., Coey, W. E., & Smyth, W. G., 1957. The effect of the artificial application of water on the composition of herbage. Res. Exp. Rec. Min. Agric, N. Ireland, 1: 48.Google Scholar
Brown, W. O., & Smyth, J. V., 1958. Losses in the conservation of grassland herbage as molassed and metabisulphite silage in lined trench silos. J. agric. Sci., 50: 307.CrossRefGoogle Scholar
Mcdonald, P., Stirling, A. C, Henderson, A. R., Dewar, W. A., Stark, G. H., DA Vie, W. G., Macpherson, H. T., Reid, A. M., & Slater, J., 1960. Studies on ensilage. Edinburgh Sch. Agric. Tech. Bull., No. 24.Google Scholar
Morrison, J., 1960. Recent developments in the production and feeding of grass silage. Proc. ith Int. Grass. Cong. Paper 12B/1.Google Scholar
Morrison, J., & Heaney, I. H., 1949. Grass silage for winter fattening of bullocks. Agriculture, 56: 71.Google Scholar
Morrison, J., & Stephenson, W. A., 1950. Winter fattening of bullocks with grass silage. Agriculture, 57: 251.Google Scholar
Peters, R. A., & VAN Slyke, D. D., 1932. Quantitative Clinical Chemistry. Williams & Wilkins, New York.Google Scholar
Watson, S. J., 1939. Grass and forage crops. The Science and Practice of Conservation. Vols. 1 & 2. The Fertiliser & Feeding Stuffs Journal, London.Google Scholar
Watson, S. J., & Horton, E. A., 1936. Technique of digestibility trials with sheep and its application to rabbits. Emp. J. exp. Agric, 4: 25.Google Scholar
Woodman, H. E., 1925. Critical examination of the methods employed in silage analysis, with observations on some special chemical characteristics of 'sour' silages. J. agric. Sci., 15: 343CrossRefGoogle Scholar