J. Anim Sci.
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J. Anim Sci. 1968. 27:490-496.
© 1968 American Society of Animal Science
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Effect of Various Chlorides and Calcium Carbonate on Calcium, Phosphorus, Sodium, Potassium and Chloride Balance and Their Relationship to Urinary Calculi in Lambs1

D. H. Bushman2, R. J. Emerick2 and L. B. Embry3

South Dakota Agricultural Experiment Station, Brookings

Abstract

A total of 216 wether lambs were used in an experiment including feeding and balance trials. The lambs were fed a high-phorphorus basal ration, known to be calculogenic, supplemented with either 1% ammonium chloride,1% calcium chloride, 1% potassium chloride, 4% sodium chloride or 2% calcium carbonate.

During an 88-day period, the control lambs developed a 50% incidence of urinary calculi. The calculi incidence for lambs fed the various salts were ammonium chloride, 5 %; calcium chloride, 16%; potassium chloride, 85%; sodium chloride, 35% and calcium carbonate, 30%. The reductions in urinary calculi incidence resulting from the feeding of ammonium chloride and calcium chloride, and the increase from the feeding of potassium chloride were significant (P<.05).

Excretion and retention data dispute the existence of any protective action manifested through variations in excretion patterns of calcium, sodium, potassium or chloride unless accompanied by a concomitant reduction in urine pH.

Average weight gain was reduced significantly(P<.05) by the feeding of 1% potassium chloride, and a reduction accompanying the feeding of 1% ammonium chloride approached significance at the same level of probability.

Footnotes

1 Published with approval of the Director of the South Dakota Agricultural Experiment Station as publication No. 769 of the journal series. This investigation was supported in part by a Public Health Service research career program award number K3 AM-28, 621-01 from the Institute of Arthritis and Metabolic Diseases.

2 Department of Station Biochemistry.

3 Department of Animal Science.






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Copyright © 1968 by the American Society of Animal Science.