Abstract
THE endogenous fæcal excretion of calcium and magnesium is derived from the various digestive secretions and the desquamated epithelial cells of the alimentary tract. The relative proportions of these two fractions is unknown, but the fact that in calves1 endogenous fæcal excretion of magnesium increases during the first few weeks of life suggests that the contribution by the digestive juices is important. There is very little information on the calcium and magnesium content of the digestive secretions of ruminants beyond the values of 1.6–3.0 and 0.6–1.0 mgm./100 ml. for calcium and magnesium respectively in mixed saliva of sheep2. For this reason estimates of the probable quantities of these elements secreted into the alimentary tract of sheep were made. Calcium and magnesium were estimated in solutions of the ashed secretions.
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References
Smith, R. H., Biochem. J., 71, 306 (1959).
McDougall, E. I., Biochem. J., 43, 99 (1948).
Kay, R. N. B., J. Physiol., 150, 515 (1960).
Masson, M. J., and Phillipson, A. T., J. Physiol., 116, 98 (1952).
Dukes, H. H., The Physiology of Domestic Animals, Seventh ed. (Constock Pub. Co., 1955).
See Hogan, J. P., “The Transport of Ammonia from the Digestive Tract of the Sheep”, Ph.D. thesis, university of Aberdeen (1957).
Taylor, R. B., J. Physiol., 143, 81P (1958).
Phaneuf, P. L., “Studies on the Motor Secretory Activity of the Cæcum and Small Intestine of the Sheep”, thesis, Cornell University (1952).
Rook, J. A. F., and Balch, C. C., J. Agric. Sci., 51, 199 (1958).
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STORRY, J. Calcium and Magnesium Contents of Various Secretions entering the Digestive Tract of Sheep. Nature 190, 1197–1198 (1961). https://doi.org/10.1038/1901197a0
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DOI: https://doi.org/10.1038/1901197a0
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