| Inhibition of calcium absorption in ponies fed diets containing oxalic acid. | |
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MedLine Citation:
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PMID: 717875 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of dietary oxalic acid on absorption, excretion, and retention of calcium was determined in Shetland ponies in 2 experiments. In each experiment, the results of feeding a control diet consisting of oats, molasses, and a complete pelleted horse ration were compared with those of feeding the control diet plus 1% oxalic acid. The diets contained 0.6% calcium in the 1st experiment and 0.45% calcium in the 2nd experiment. Oxalic acid increased the fecal excretion of calcium and decreased calcium absorption. The endogenous fecal excretion of calcium determined in the 1st experiment, using 47Ca, was not affected by dietary oxalic acid, indicating that the increase in fecal calcium was due to unabsorbed dietary calcium. Ponies fed 1% oxalic acid in diets containing 0.45% calcium were in negative calcium balance. The ponies did not conserve calcium by reducing the urinary calcium excretion if they were fed oxalic acid. Magnesium balance was measured in the 3 ponies in the 1st experiment. Urinary magnesium excretion increased and magnesium retention decreased in response to oxalic acid intake. |
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Authors:
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J A Swartzman; H F Hintz; H F Schryver |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American journal of veterinary research Volume: 39 ISSN: 0002-9645 ISO Abbreviation: Am. J. Vet. Res. Publication Date: 1978 Oct |
Date Detail:
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Created Date: 1979-01-26 Completed Date: 1979-01-26 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0375011 Medline TA: Am J Vet Res Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1621-3 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Administration, Oral Animal Feed Animals Calcium / metabolism*, urine Feces / analysis Horses / metabolism* Intestinal Absorption Oxalates / administration & dosage, pharmacology* |
| Chemical | |
Reg. No./Substance:
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0/Oxalates; 7440-70-2/Calcium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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