Abstract
Results of an investigation into the chemical composition of pasture herbage on twelve New Zealand dairy farms, with contrasting incidences of primary ruminal tympany (bloat), are presented. The data suggest that dietary K:Na ratio may be an important factor in the aetiology of bloat; a factor that does not seem to have been recognised in the past. Other supportive evidence for this hypothesis is briefly discussed.
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References
Agricultural Research Council, 1980. Nutrient requirements of Ruminant Livestock. Commonwealth Agricultural Bureaux, 351 pp.
Cheng, K.J., Bailey, C.B., Hironaka, R. and Costerton, J.W., 1979. Bloat in feedlot cattle: effects on rumen function of adding 4% sodium chloride to a concentrate diet. Can. J. anim. Sci., 59: 737–747.
Clarke, R.T.J. and Reid, C.S.W., 1974. Foamy bloat of cattle. A review. J. Dairy Sci., 57: 753–785.
Cooper, H.P. and Hall, E.E., 1956. Significance of the coequal effect or balanced-baulic-poundage ratio of major fertilizer nutrients to relative percentage growth response in crop plants. Soil Sci., 82: 201–215.
Dougherty, R.W., 1953. The continuing quest for the cause of bloat in ruminants. J. Am. vet. med. Assoc., 122: 345–353.
Ferguson, W.S. and Terry, R.A., 1955. Bloat investigations. J. agric. Sci. Camb., 46: 257–266.
Frens, A.M., 1962. Wat is goed gras-voedingstechnisch gezein? Kali, Amsterdam, 6: 63–68.
Henkens, Ch. H., 1965. Factors influencing the sodium content of meadow grass. Neth. J. agric. Sci. 13: 21–47.
Johns, A.T., 1956. Bloat. Vet. Rev. and Annot., 2: 107–134.
Jones, W.T. and Lyttleton, J.W., 1971. Bloat in cattle. XXXIV. A survey of legume forages that do and do not produce bloat. N.Z. J. agric. Res., 14: 101–107.
Kemp, A. and 'tHart, M.L., 1957. Grass tetany in grazing milking cows. Neth. J. agric. Sci., 5: 4–17.
Lindahl, I.L., Davis, R.E., Jacobson, D.R. and Shaw, J.C., 1957. Feedlot bloat studies. I. Animal and dietary factors. J. anim. Sci., 16: 165–178.
Mangan, J.L., 1959. Bloat in cattle. XI. The foaming properties of proteins, saponins, and rumen liquor. N.Z. J. agric. Res., 2: 47–61.
Majak, W., Howarth, R.E., Fesser, A.C., Goplen, B.P. and Pedersen, M.W. 1980. Relationships between ruminant bloat and the composition of alfalfa herbage. II. Saponins. Can. J. anim. Sci., 60: 699–708.
Marten, G.C., 1978. The animal-plant complex in forage palatability phenomena. J. anim. Sci., 46: 1470–1477.
Metson, A.J., Saunders, W.M.H., Collie, T.W. and Graham, V.W., 1966. Chemical composition of pastures in relation to grass tetany in beef breeding cows. N.Z. J. agric. Res., 9: 410–436.
Reid, C.S.W., 1956. Limitations of present methods of controlling bloat in the field. Proc. Conf. N.Z. Soc. An. Prod., 16: 122–129.
Reid, C.W.S., 1973. Bloat in New Zealand. In: R.A. Leng and J.R. McWilliam (Editors), Bloat. Reviews in Rural Science No. 1. University of New England Press, Australia, 5–9.
Sears, P.D., 1960. Grass-clover relationships in New Zealand. Proc. Int. Grass. Cong., 8: 130–133.
Smith, G.S., Middleton, K.R. and Edmonds, A.S., 1978. A classification of pasture and fodder plants according to their ability to translocate sodium from their roots into aerial parts. N.Z. J. exp. Agric., 6: 183–188.
Stewart, B.A., Grunes, D.L., Mathers, A.C. and Horn, F.P., 1981. Chemical composition of winter wheat forage grown where grass tetany and bloat occur. Agron. J., 73: 337–347.
Troughton, A., 1955. A comparison of three strains of white clover. Part II. Observations on bloat. J. Brit. Grass. Soc., 10: 297–305.
Turner, M.A., Neall, V.E. and Wilson, G.F. 1978. Survey of magnesium content of soils and pastures and incidence of grass tetany in three selected areas of Taranaki. N.Z. J. agric. Res., 21: 583–592.
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Turner, M.A. Dietary potassium-sodium imbalance as a factor in the aetiology of primary ruminal tympany in dairy cows. Vet Res Commun 5, 159–164 (1981). https://doi.org/10.1007/BF02214980
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DOI: https://doi.org/10.1007/BF02214980