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Potassium Metabolism in Ponies
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Potassium Metabolism in Ponies
Potassium Metabolism in Ponies
HH
H. F. Hintz
H. F. Hintz
HS
H. F. Schryver
H. F. Schryver
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1 March 1976
journal article
Published by
Oxford University Press (OUP)
in
Journal of Animal Science
Vol. 42
(3)
,
637-643
https://doi.org/10.2527/jas1976.423637x
Abstract
Potassium metabolism and some metabolic interractions of K, Mg and Ca were studied in a series of balance trials with ponies. The kidney was the primary pathway of K excretion. Increasing K intake markedly affected the renal excretion of K but had only small effects on fecal excretion. Increasing K intake increased retention and apparent digestibility of K. High levels of dietary Ca (3.4%) did not influence K metabolism but the highest level of Mg (.81%) increased the apparent digestibility of K. A level of 3.4% K did not decrease Mg, P or Ca digestibility and retention. The maintenance requirement of K was estimated to be 48 mg/kg of body weight. The estimates did not account for sweat and dermal loss of K. The small intestine appeared to be the site of greatest apparent net K absorption but a significant amount of K was absorbed from the large intestine. Copyright © 1976. American Society of Animal Science. Copyright 1976 by American Society of Animal Science.
Keywords
COPYRIGHT
SOCIETY
RETENTION
SCIENCE
DIGESTIBILITY
ANIMAL
AMERICAN
PONIES
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Open Access
Cited by 19 articles