- Published:
The Endogenous Excretion of Magnesium in Cattle
Die endogene Magniumausscheidung beim Rind
Den endogene magniumudskillelse hos kvæg
Acta Veterinaria Scandinavica volume 3, pages 175–184 (1962)
Summary
The endogenous fecal magnesium excretion has been determined in two 8-week old Jersey calves and in two mature Holstein cows. The average values were 3.5 mg./kg. body weight for the calves, and 1.5 mg./kg. for the cows. The average Mg absorption was 52 percent for the milk-fed calves, and 27 percent for the cows, which received hay and grain.
Zusammenfassung
Mit Hilfe von Mg28 wurde die endogene Magniiumausscheidung in die Faeces bei zwei 8 Wochen alten Jerseykälbern sowie zwei erwachsenen, schwarz-weissen „Holstein”-Kühen bestimmt. Als durchschnittliche Werte wurden bei den Kälbern 3,5 mg pro kg Lebendgewicht und bei den Kühen 1,5 mg pro kg Lebendgewicht gefunden.
Die Kälber, die mit Milch gefüttert wurden, absorbierten durchschnittlich 52 % des zugeführten Magniums, während die Kühe, deren Futter in Luzernheu und Getreide bestand, durchschnittlich 27 % absorbierten. Diese Resultate werden diskutiert und mit denjenigen früherer Untersuchungen verglichen.
ResumÉ
Ved hjælp af Mg28 er den endogene magniumudskillelse til fæces blevet bestemt hos to 8 uger gamle Jerseykalve, samt hos to voksne, sortbrogede „Holstein” køer. De gennemsnitlige værdier blev for kalvene fundet at være 3,5 mg/kg legemsvægt, og for køerne 1,5 mg/kg legemsvægt.
Kalvene, som fodredes med mælk, absorberede gennemsnitligt 52 % af den tilførte magnium, medents køerne, som fodredes med lucernehø og kærne, gennemsnitligt absorberede 27 %. Disse resultater diskuteres og sammenlignes med tidligere undersøgelser.
References
Blaxter, K. L., and McGill, R. F.: Magnesium metabolism in cattle. Vet. Rev. and Ann. 1956, 2, 35–54.
Brown, J. J., Lilleland, O., and Jackson, R. K.: A line operated photomultiplier unit for measuring spectral emission in flame analysis. Amer. Soc. Hort. Sci. 1952, 59, 337–342.
Care, A. D.: The kinetics of magnesium distribution within the sheep. Res. vet. Sci. 1960, 1, 338–349.
Comar, C. L., Monroe, R. A., Visek, W. J., and Hansard, S.: Comparison of two isotope methods for determination of endogenous fecal calcium. J. Nutrition 1953, 50, 459–467.
Field, A. C.: Balance trials with magnesium28 in sheep. Nature 1959, 183, 983 only.
Field, A. C.: The absorption and excretion of magnesium in the ruminant. B. V. A. Conf. on Hypomagnesaemia 1960, p. 13–20.
Field, A. C.: Studies on magnesium in ruminant nutrition. Brit. J. Nutr. 1961, 15, 349–359.
Kleiber, M., Smith, A. H., Ralston, N. P., and Black, A. L.: Radiophosphorus (P32) as tracer for measuring endogenous phosphorus in cow’s feces. J. Nutrition 1951, 45, 253–264.
Kleiber, M,: The fire of Life. An Introduction to Animal Energetics. John Wiley & Sons, Inc. N. Y. 1961.
Luick, J. R., and Lof green, G. P.: An improved method for the determination of the metabolic fecal phosphorus. J. animal Sci. 1957, 16, 201–206.
MacDonald, D. C., Care, A. D., and Nolan, B.: Excretion of labelled magnesium by the sheep. Nature 1959, 184, 736–737.
Smith, R. H.: Calcium and magnesium metabolism in calves. Biochem. J. 1959, 71, 306–311.
Visek, W. J., Monroe, R. A., Swanson, E. W., and Comar, C. L.: Determination of endogenous fecal calcium in cattle by a simple isotope dilution method. J. Nutrition 1953, 50, 23–33.
Author information
Authors and Affiliations
Additional information
This investigation was supported by a grant from the U. S. Atomic Energy Commission (Contract AT (11-1)-34, no. 1).
On leave from the Royal Veterinary and Agricultural College, Copenhagen, Denmark; appointment supported by the International Co-operation Administration under the Visiting Research Scientists Program administered by the National Academy of Science« of the United States of America.
Rights and permissions
About this article
Cite this article
Simesen, M.G., Lunaas, T., Rogers, T.A. et al. The Endogenous Excretion of Magnesium in Cattle. Acta Vet Scand 3, 175–184 (1962). https://doi.org/10.1186/BF03547138
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1186/BF03547138