+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Studies on magnesium in ruminant nutrition. 2. The effect of abrupt changes in the nature of the diet on the urinary magnesium excretion of sheep



Studies on magnesium in ruminant nutrition. 2. The effect of abrupt changes in the nature of the diet on the urinary magnesium excretion of sheep



British Journal of Nutrition 15: 287-295



A study was made of the effect of dietary changes involving hay, grass nuts and spring herbage on the urinary Mg excretion and the concentration of Mg in the serum of adult wethers of various breeds. The samples of spring herbage were obtained from fertilized leys, on one of which hypomagnesaemic tetany in cows and ewes had recently occurred. No dietary change produced any marked alteration in the serum Mg levels and the values remained within the normal range, even when the tetany herbage was given for 18 days. An immediate fall in urinary Mg excretion usually occurred after a dietary change from hay or grass nuts to spring herbage, even when the change led to increased Mg intake. Lowest values, which occurred within 1-2 days of the dietary change, were followed by an increase although the Mg intake remained constant In some instances the excretion at the end of the period of observation reflected the difference in the Mg content of the two rations. The reverse dietary change produced the opposite effect on urinary Mg, namely an immediate increase followed by a fall. The increase occurred when the dietary change led to a decreased intake, and maximal values were observed within 1-3 days of the change. The volume of urine excreted was highest 2 or 3 days after the diet had been changed from hay or grass nuts to spring herbage. It is not known whether these changes in urinary Mg excretion are caused by changes in absorption or in endogenous fecal Mg excretion.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 014204526

Download citation: RISBibTeXText

PMID: 13699344


Related references

Studies on magnesium in ruminant nutrition. 7. Excretion of magnesium, calcium, potassium and faecal dry matter by grazing sheep. British Journal of Nutrition 21(3): 631-642, 1967

Studies on magnesium in ruminant nutrition. 9. Effect of potassium and magnesium intakes on development of hypomagnesaemia in sheep. British Journal of Nutrition 23(1): 81-90, 1969

Studies on magnesium in ruminant nutrition. X. Effect of lactation on the excretion of magnesium and faecal dry matter by grazing monozygotic twin cows. Br. J. Nutr 24(1): 71-83, 1970

Studies on magnesium in ruminant nutrition part 10 effect of lactation on the excretion of magnesium and fecal dry matter by grazing mono zygotic twin cows. British Journal of Nutrition 24(1): 71-83, 1970

Studies on magnesium in ruminant nutrition. 6. Effect of intake of water on the metabolism of magnesium, calcium, sodium, potassium and phosphorus in sheep. Brit J Nutr 20(3): 609-619, 1966

Studies on magnesium in ruminant nutrition. 8. Effect of increased intakes of potassium and water on the metabolism of magnesium, phosphorus, sodium, potassium and calcium in sheep. British Journal of Nutrition 21(4): 819-831, 1967

Studies on magnesium in ruminant nutrition. 11. Effect of lactation on the excretion of calcium and potassium by grazing monozygotic twin cows. British Journal of Nutrition 24(1): 85-96, 1970

Studies on calcium and magnesium metabolism in ruminants. II. Effect of continual intravenous infusion of calcium lactate on serum concentration and urinary excretion of calcium, magnesium, phosphorus, sodium and potassium in sheep. Journal of the Faculty of Agriculture, Iwate University 14(2): 119-130, 1978

Studies on calcium and magnesium metabolism in ruminants part 2 effect of continual intra venous infusion of calcium lactate on serum concentration and urinary excretion of calcium magnesium phosphorus sodium and potassium in sheep. Journal of the Faculty of Agriculture Iwate University 14(2): 119-130, 1978

Studies On Magnesium In Ruminant Nutrition. 5. The Indirect Determination Of The Intake Of Magnesium, Calcium And Potassium By The Grazing Cow. British Journal of Nutrition 18: 357-368, 1964

Studies on the nutrition of rainbow trout salmo gairdneri magnesium deficiency the effect of feeding with magnesium supplemented diet. British Journal of Nutrition 50(1): 121-128, 1983

Experimental studies on hypomagnesaemia of ruminants. III. Metabolism of magnesium and calcium in sheep at the time of change from a low magnesium and calcium diet to a low magnesium diet with calcium carbonate. Japanese Journal of Veterinary Science 41(5): 531-540, 1979

Studies on magnesium in ruminant nutrition. 4. Balance trials on sheep given different amounts of grass nuts. British Journal of Nutrition 16: 99-107, 1962

Studies on magnesium in ruminant nutrition. 3. Distribution of Mg-28 in the gastro-intestinal tract and tissues of sheep. Brit Jour Nutrition 15(3): 349-359, 1961

Studies on magnesium in ruminant nutrition. 3. Distribution of 28Mg in the gastro-intestinal tract and tissues of sheep. British Journal of Nutrition 15: 349-359, 1961