Experimental production of hypomagnesaemia in ewes and its control by small magnesium supplements
- 1 June 1962
- journal article
- research article
- Published by Cambridge University Press (CUP) in The Journal of Agricultural Science
- Vol. 58 (3), 399-404
- https://doi.org/10.1017/s0021859600013265
Abstract
1. A low magnesium diet is described, consisting of barley straw, sucrose and casein, which induced hypomagnesaemia and one case of clinical tetany in non-pregnant, non-lactating ewes.2. On the above diet a daily drench of 0·25 g. MgO maintained plasma magnesium levels at 1·60–1·80 mg./100 ml. which was significantly higher than the plasma magnesium level of 1·09–1·20 mg./100 ml. for the unsupplemented group.3. An experimental formulation of a magnesium heavy pellet is described and its use as a method of supplementation was investigated. On the above diet it was found that two or four heavy pellets also maintained plasma magnesium values at 1·601–80 mg./100 ml. which was significantly higher (P = 0·01) than the level of the unsupplemented group.4. Five sheep out of the forty ewes used in this experiment were found to have consistently lower plasma magnesium values than the remaining thirty-five.5. A preliminary trial of the use of heavy pellets as a magnesium supplement in non-pregnant, non-lactating ewes on winter grazing is described. The results of the trial under these conditions were encouraging.Keywords
This publication has 3 references indexed in Scilit:
- Experimental Production of Magnesium Deficiency in Lambs on a Diet containing RoughageNature, 1959
- The Estimation of Magnesium in Serum using Titan YellowJournal of Clinical Pathology, 1956
- Use of titan yellow for the determination of magnesium in plant materialJournal of the Science of Food and Agriculture, 1950