Absorption and Excretion of Cholecalciferol and of 25-hydroxycholecalciferol and Metabolites in Birds

Overview

Journal J Nutr

Publisher Elsevier

Specialty Nutritional Sciences

Date 1980 Oct 1

PMID 6252300

Citations 15

Authors

A Bar

M Sharvit

D Noff

S Edelstein

S Hurwitz

Affiliations

Soon will be listed here.

Abstract

The absorption and excretion in vivo of cholecalciferol or 25-hydroxycholecalciferol (25-HCC) were determined in chicks (Gallus domesticus) and turkeys (Meleagris gallopavo). The overall net cholecalciferol or 25-HCC absorption in chicks and cholecalciferol in turkey poults was 66.5 +/- 3.3, 74.9 +/- 3.7 and 83.6 +/- 7.1% of the intake, respectively. The absorption of cholecalciferol or 25-HCC in chicks and turkeys occurred at the upper part of the intestine. 25-HCC, esters and non-polar metabolites of cholecalciferol or 25-HCC, and their polar metabolites, were secreted in the duodenum of chicks and turkeys but were partially reabsorbed at the upper part of the jejunum.

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