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The effect of supplementation of the diet of lactating Jersey cows with varying levels of acetic acid

Published online by Cambridge University Press:  01 June 2009

C. Lewis Johnson  and
David I. Kitchen
C. Lewis Johnson
Affiliation:
Department of Animal Physiology and Nutrition, University of Leeds, Leeds, LS2 9JT
David I. Kitchen
Affiliation:
Department of Animal Physiology and Nutrition, University of Leeds, Leeds, LS2 9JT
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Summary

TwO Latin-square experiments using lactating Jersey cows have been made to determine the response to 4 levels of acetic acid given as a supplement to diets fed at Woodman's Standards. The response in milk yield and composition to daily supplementary infusions of acetic acid is curvilinear, the point of inflexion occurring between the levels of 450 and 600 ml acetic acid/d. The direction of responses to the 150-ml level of infusion varied between the experiments. At the 600-ml level of addition the non-significant increases in milk fat, protein and lactose yield led to a significant increase in solids corrected milk yield. The effects of acetic acid infusion on the composition of the milk fat were determined.

Type
Original Articles
Information
Journal of Dairy Research , Volume 45 , Issue 3 , October 1978 , pp. 321 - 329
Copyright
Copyright © Proprietors of Journal of Dairy Research 1978

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References

REFERENCES

Aschaffenburg, R. & Drewry, J. (1969). 15th International Dairy Congress, London 3, 1631.Google Scholar
Balch, C. C., Broster, W. H., Johnson, V. W., Line, C., Rook, J. A. F., Sutton, J. D. & Tuck, V. J. (1967). Journal of Dairy Research 34, 199.Google Scholar
British Standards Institution (1951). B.S. No. 1741, p. 7.Google Scholar
British Standards Institution (1955). B.S. No. 696, part 1, p. 7.Google Scholar
deMan, J. M. (1964). Journal of Dairy Science 47, 546.Google Scholar
Dill, C. W. (1966). Journal of Dairy Science 49, 1276.CrossRefGoogle Scholar
Evans, R. E. (1960). Rations for Livestock. Bulletin 48, Ministry of Agriculture, Fisheries and Food. London: H.M.S.O.Google Scholar
Fertilisers and Feeding Stuffs Regulations 1968 (1968). Statutory Instrument no. 218. London: H.M.S.O.Google Scholar
Fisher, R. A. & Yates, F. (1963). Statistical Tables for Biological, Agricultural and Medical Research, 6th edn.Edinburgh: Oliver & Boyd.Google Scholar
Hutton, K., Prescott, J. H. D., Seeley, R. C. & Armstrong, D. G. (1969). Animal Production 11, 209.Google Scholar
Jackson, P. & Rook, J. A. F. (1970). Animal Production 12, 503.Google Scholar
Jorgensen, N. A. & Schultz, L. H. (1965). Journal of Dairy Science 48, 1040.CrossRefGoogle Scholar
Kitchen, D. I. (1974). Thesis, University of Leeds.Google Scholar
Konar, A. (1970). Thesis, University of Leeds.Google Scholar
Metcalfe, L. D., Schmitz, A. A. & Pelka, J. R. (1966). Analytical Chemistry 38, 514.CrossRefGoogle Scholar
Nordfeldt, S. (1958). Meddelande, Statens Husdjursförsök, no. 66Google Scholar
(Dairy Science Abstracts 21, 145).Google Scholar
Prescott, J. H. D., El-Shobokshy, A. S. & Armstrong, D. G. (1969). Animal Production 11, 195.Google Scholar
Robb, J. & Reid, J. T. (1972). British Journal of Nutrition 28, 249.Google Scholar
Rook, J. A. F. & Balch, C. C. (1961). British Journal of Nutrition 15, 361.CrossRefGoogle Scholar
Smith, L. M. (1961). Journal of Dairy Science 44, 607.Google Scholar
Snedecor, G. W. (1956). Statistical Methods, 5th edn.Ames, Iowa: Iowa State University Press.Google Scholar
Stanley, R. W., Morita, K. & Ueyama, E. (1964). Journal of Dairy Science 47, 258.Google Scholar
Storry, J. E., Rook, J. A. F. & Hall, A. J. (1967). British Journal of Nutrition 21, 425.CrossRefGoogle Scholar
Sutton, J. D. (1964). Reports of the Progress of Applied Chemistry, p. 339.Google Scholar
Tyrrell, H. F. & Reid, J. T. (1965). Journal of Dairy Science 48, 1215.Google Scholar
Wilson, G. F., Davey, A. W. F. & Dolby, R. M. (1967). New Zealand Journal of Agricultural Research 10, 215.Google Scholar
Wishart, J. (1940). Field Trials: Their Lay-out and Statistical Analysis. Cambridge: Imperial Bureau of Plant Breeding and Genetics.Google Scholar