אסיף מאגר המחקר החקלאי

Absorption and excretion of cholecalciferol and of 25-hydroxycholecalciferol and metabolites in birds

Year:

1980

Source of publication :

Authors :

Volume :

110

Co-Authors:

Bar, A., Inst. Anim. Sci. Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Sharvit, M., Inst. Anim. Sci. Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Noff, D., Inst. Anim. Sci. Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Edelstein, S.
Hurwitz, S.

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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 of 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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