| Native corn starch versus either cellulose or glucose in the diet and the effects on apparent magnesium absorption in goats. | |
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MedLine Citation:
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PMID: 9276814 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The objective of this study was to determine whether dietary glucose or starch would reduce the inhibitory effect of high K intake on Mg absorption in ruminants. In a 6 x 6 Latin square design, six goats were fed diets with or without added KHCO3 containing either cellulose, glucose, or native corn starch. The K concentrations of the diets were 7.8 or 34.0 g or K/kg of dry matter, and carbohydrates were incorporated so that their concentrations were identical on a glucose equivalent basis (331 g of glucose/kg of dry matter). The intake of extra K significantly reduced apparent Mg absorption from 29.8 to 22.1% on average. Glucose, instead of cellulose, in the diet did not affect Mg absorption. Replacement of dietary cellulose by corn starch enhanced the mean efficiency of Mg absorption from 21.8 to 30.9%. Starch versus glucose increased Mg absorption by 5.8 percentage units. No statistically significant interaction was observed between the type of carbohydrate and the amount of K in the diet with regard to Mg absorption. This study showed that the inhibitory effect of dietary KHCO3 on Mg absorption in goats was fully counteracted by the replacement of cellulose with starch in the diet. Possible changes in the pH of ruminal fluid might have mediated the dietary effects on Mg absorption. |
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Authors:
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J T Schonewille; L Ram; A T Van't Klooster; H Wouterse; A C Beynen |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of dairy science Volume: 80 ISSN: 0022-0302 ISO Abbreviation: J. Dairy Sci. Publication Date: 1997 Aug |
Date Detail:
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Created Date: 1997-10-02 Completed Date: 1997-10-02 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 2985126R Medline TA: J Dairy Sci Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1738-43 Citation Subset: IM |
Affiliation:
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Department of Large Animal Medicine and Nutrition, Faculty of Veterinary Medicine, Utrecht University, The Netherlands. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Absorption Animals Bicarbonates / administration & dosage Body Weight Cellulose / administration & dosage* Diet* Dietary Carbohydrates / administration & dosage Female Glucose / administration & dosage* Goats / metabolism* Magnesium / blood, metabolism* Potassium / administration & dosage Potassium Compounds / administration & dosage Starch / administration & dosage* |
| Chemical | |
Reg. No./Substance:
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0/Bicarbonates; 0/Dietary Carbohydrates; 0/Potassium Compounds; 298-14-6/potassium bicarbonate; 50-99-7/Glucose; 7439-95-4/Magnesium; 7440-09-7/Potassium; 9004-34-6/Cellulose; 9005-25-8/Starch |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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