![]() |
|
|



Institute of Animal Science, Agricultural Research Organization, The Volcani Center, Bet Dagan
* Biochemistry Department, The Weizmann Institute of Science, Rehovot, Israel
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.
KEY WORDS: cholecalciferol absorption 25-hydroxycholecalciferol absorption chick turkey
1 Contribution from the Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel. No. 248-E, 1979 series. The research was supported by the Poultry Marketing Board of Israel.
Manuscript received 26 December 1979.
This article has been cited by other articles:
![]() |
S. H. Chou, T. K. Chung, and B. Yu Effects of supplemental 25-hydroxycholecalciferol on growth performance, small intestinal morphology, and immune response of broiler chickens Poult. Sci., November 1, 2009; 88(11): 2333 - 2341. [Abstract] [Full Text] [PDF] |
||||