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Relationships between cholecalciferol metabolism and growth in chicks as modified by age, breed and diet
Year:
1981
Source of publication :
Journal of Nutrition
Authors :
Bär, Arie
;
.
Hurvitz, Shmuel (Animal science)
;
.
Volume :
111
Co-Authors:
Bar, A., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Hurwitz, S., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Facilitators :
From page:
399
To page:
404
(
Total pages:
6
)
Abstract:
Fast-growing heavy (White Rock) chicks, fed a vitamin D-deficient diet, exhibited a higher activity of kidney 25-hydroxycholecalciferol-1-hydroxylase (1-hydroxylase) than slow-growing light (White Leghorn X Rhode Island Red) chicks fed the same diet. 1-Hydroxylase and duodenal calcium-binding protein (CaBP) declined with age. Feeding of low energy diets with or without vitamin D resulted in a slower rate of growth and reduced 1-hydroxylase activity and CaBP concentration. Severe dietary restriction of either calcium or phosphorus resulted in a lower growth rate as well as a duodenal CaBP as compared to a moderate mineral restriction. The severe dietary calcium restriction also resulted in a lower 1-hydroxylase activity than that resulting from a moderate restriction. The results clearly indicate that high 1-hydroxylase activity and a high intestinal CaBP are associated with a high growth rate.
Note:
Related Files :
25 hydroxycolecalciferol hydroxylase
aging
Animal
animal experiment
Growth
Male
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Related Content
More details
DOI :
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
21593
Last updated date:
21/08/2022 07:45
Creation date:
16/04/2018 23:45
You may also be interested in
Scientific Publication
Relationships between cholecalciferol metabolism and growth in chicks as modified by age, breed and diet
111
Bar, A., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Hurwitz, S., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Relationships between cholecalciferol metabolism and growth in chicks as modified by age, breed and diet
Fast-growing heavy (White Rock) chicks, fed a vitamin D-deficient diet, exhibited a higher activity of kidney 25-hydroxycholecalciferol-1-hydroxylase (1-hydroxylase) than slow-growing light (White Leghorn X Rhode Island Red) chicks fed the same diet. 1-Hydroxylase and duodenal calcium-binding protein (CaBP) declined with age. Feeding of low energy diets with or without vitamin D resulted in a slower rate of growth and reduced 1-hydroxylase activity and CaBP concentration. Severe dietary restriction of either calcium or phosphorus resulted in a lower growth rate as well as a duodenal CaBP as compared to a moderate mineral restriction. The severe dietary calcium restriction also resulted in a lower 1-hydroxylase activity than that resulting from a moderate restriction. The results clearly indicate that high 1-hydroxylase activity and a high intestinal CaBP are associated with a high growth rate.
Scientific Publication
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