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Effect of inclusion of saliva salts in the diet on milk yield and composition in dairy cows

Published online by Cambridge University Press:  01 June 2009

Miltos Hadjipanayiotou ,
Peter Rowlinson ,
David G. Harrison  and
David G. Armstrong
Miltos Hadjipanayiotou
Affiliation:
Department of Agriculture, The University, Newcastle upon Tyne NE1 7RU, UK
Peter Rowlinson
Affiliation:
Department of Agriculture, The University, Newcastle upon Tyne NE1 7RU, UK
David G. Harrison
Affiliation:
Department of Agriculture, The University, Newcastle upon Tyne NE1 7RU, UK
David G. Armstrong
Affiliation:
Department of Agriculture, The University, Newcastle upon Tyne NE1 7RU, UK
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Summary

Twenty multiparous Jersey cows, paired according to previous lactation yield and expected date of calving, were given two diets in a cross-over experiment in early lactation. The diets had forage:concentrate ratios maintained at 3:7, the forage being wilted grass silage and the concentrate either a proprietary dairy cake or the same cake containing saliva salts (SS) at 40 g/kg dry matter. The SS diet proved acceptable to the animals and had no effect on gestation length or calf survival. Absolute milk yields were not affected, but the SS diet caused a significant increase in the proportions of milk fat, total solids (both P < 0·001) and protein (P < 0·05) and in the yield of fat-corrected milk (P < 0·001). Analysis of rumen liquor samples showed that giving the SS diet resulted in a significant increase in the molar proportion of acetate and a decrease in the proportions of propionate and to a lesser extent butyrate. Milk fat content showed significant correlations with ruminal acetate (r = 0·67), propionate (r = −0·59) and the acetate: propionate ratio (r = 0·64).

Type
Original Articles
Information
Journal of Dairy Research , Volume 59 , Issue 1 , February 1992 , pp. 1 - 9
Copyright
Copyright © Proprietors of Journal of Dairy Research 1992

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References

REFERENCES

Alderman, G., Harvard, A., Todd, J. R., Edwards, R. A. & Morgan, D. E. 1975 Energy allowances and feeding Systems for ruminants. London: HMSO: MAFF (Technical Bulletin no. 33)Google Scholar
Annison, E. F., Bickerstaffe, R. & Linzell, J. L. 1974 Glucose and fatty acid metabolism in cows producing milk of low fat content. Journal of Agricultural Science 82 87–95CrossRefGoogle Scholar
Armstrong, D. G. 1968 The amount and physical form of feed and milk secretion in the cow. Proceedings of the Nutrition Society 27 57–65CrossRefGoogle ScholarPubMed
Armstrong, D. G. & Prescott, J. H. D. 1971 Amount, physical form and composition of feed and milk secretion in the dairy cow. In Lactation pp. 349–377 (Ed. Falconer, I. R.). London: ButterworthsGoogle Scholar
Bauman, D. E., McCutcheon, S. N., Steinhour, W. D., Eppard, P. J. & Sechen, S. J. 1985 Sources of variation and prospects for improvement of productive efficiency in the dairy cow: a review. Journal of Animal Science 60 583–592CrossRefGoogle ScholarPubMed
Cochran, W. G. & Cox, G. M. 1957 Experimental Designs, 2nd edn.New York: J. Wiley & SonsGoogle Scholar
Davis, C. L. & Brown, R. E. 1970 Low-fat milk syndrome. In Physiology of Digestion and Metabolism in the Ruminant (3rd international symposium, 1969) pp. 545–565 (Ed. Phillipson, A. T.). Newcastle upon Tyne: Oriel PressGoogle Scholar
Diven, R. H. 1975 Bicarbonates in ruminant nutrition and physiology. Feedstuffs 47 (31) 21–23, 26; (32) 23–25Google Scholar
Emery, R. S. & Brown, L. D. 1961 Effect of feeding sodium and potassium bicarbonate on milk fat, rumen pH, and volatile fatty acid production. Journal of Dairy Science 44 1899–1902CrossRefGoogle Scholar
Emery, R. S., Brown, L. D. & Bell, J. W. 1965 Correlation of milk fat with dietary and metabolic factors in cows fed restricted-roughage rations supplemented with magnesium oxide or sodium bicarbonate. Journal of Dairy Science 48 1647–1651CrossRefGoogle Scholar
Emery, R. S., Brown, L. D. & Thomas, J. W. 1964 Effect of sodium and calcium carbonates on milk production and composition of milk, blood, and rumen contents of cows fed grain ad libitum with restricted roughage. Journal of Dairy Science 47 1325–1329CrossRefGoogle Scholar
Hadjipanayiotou, M., Harrison, D. G. & Armstrong, D. G. 1982 The effects upon digestion in sheep of the dietary inclusion of additional salivary salts. Journal of the Science of Food and Agriculture 33 1057–1062CrossRefGoogle Scholar
Harrison, D. G., Beever, D. E., Thomson, D. J. & Osbourn, D. F. 1975 Manipulation of rumen fermentation in sheep by increasing the rate of flow of water from the rumen. Journal of Agricultiiral Science 85 93–101CrossRefGoogle Scholar
Harrison, D. G., Beever, D. E., Thomson, D. J. & Osbourn, D. F. 1976 Manipulation of fermentation in the rumen. Journal of the Science of Food and Agriculture 27 617–620CrossRefGoogle ScholarPubMed
Kellaway, R. C., Thomson, D. J., Beever, D. E. & Osbourn, D. F. 1977 Effects of NaCl and NaHC03 on food intake, growth rate and acid-base balance in calves. Journal of Agricultiiral Science 88 1–9CrossRefGoogle Scholar
Lanzac-Perez, J., Harrison, D. G., Hadjipanayiotou, M. & Armstrong, D. G. 1978 The effect of the addition of an artificial saliva to high energy diets fed to early weaned lambs. In 3rd World Congress on Animal Feeding, Madrid Paper A-1–65Google Scholar
Ling, E. R. 1956 A Textbook of Dairy Chemistry, 3rd edn, Vol. 2 Practical p. 96. London: Chapman and HallGoogle Scholar
McCullouch, M. E. 1966 Relationships between rumen fluid volatile fatty acids and milk fat percentage and feed intake. Journal of Dairy Science 49 896–898CrossRefGoogle Scholar
McDougall, E. I. 1948 Studies on ruminant saliva. Biochemical Journal 43 99–109CrossRefGoogle ScholarPubMed
Miller, R. W., Hemken, R. W., Waldo, D. R., Okamoto, M. & Moore, L. A. 1965 Effect of feeding buffers to dairy cows fed a high-concentrate low-roughage ration. Journal of Dairy Science 48 1455–1458CrossRefGoogle Scholar
Ministry Of Aquiculture, Fisheries And Food 1973 The Analysis of Agricultural Materials. London: HMSO: MAFF (Technical Bulletin no. 27)Google Scholar
Nicholson, J. W. G., Cunningham, H. M. & Friend, D. W. 1962 The addition of buffers to ruminant rations. 3. The erfect of additions of sodium bicarbonate, sodium propionate, limestone and cod liver oil on apparent digestibility and nitrogen retention of an all-concentrate ration. Canadian Journal of Animal Science 42 82–87CrossRefGoogle Scholar
Nicholson, J. W. G., Cunningham, H. M. & Friend, D. W. 1963 The addition of buffers to ruminant rations. 4. The effect of additions of sodium bicarbonate, sodium propionate, limestone and cod liver oil on intra-rumen environment. Canadian Journal of Animal Science 43 309–319CrossRefGoogle Scholar
Rook, J. A. F. & Thomas, P. C. 1983 Milk secretion and its nutritional regulation. In Nutritional Physiology of Farm Animals pp. 314–368 (Eds Rook, J. A. F. and Thomas, P. C.). London: LongmansGoogle Scholar
Thomas, J. W. & Emery, R. S. 1969 Additive nature of sodium bicarbonate and magnesium oxide on milk fat concentrations of milking cows fed restricted-roughage rations. Journal of Dairy Science 52 1762–1769CrossRefGoogle Scholar
Vernon, R. G. & Flint, D. J. 1984 Adipose tissue: metabolic adaption during lactation. In Physiological Strategies in Lactation pp. 119–145 (Eds Peaker, M., Vernon, R. G. and Knight, C. H.). London: Academic Press (Symposium of the Zoological Society of London no. 51)Google Scholar
Wilkinson, J. M. & Prescott, J. H. D. 1970 The use of chromic oxide in the measurement of individual feed intake in cattle fed on silage and barley. Animal Production 12 71–80Google Scholar