חיפוש מתקדם
Journal of Nutrition
Bar, A., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Eisner, U., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Montecuccoli, G., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Hurwitz, S., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Two experiments were carried out with laying quail (Coturnix coturnix japonica) fed either cholecalciferol (40 μg/kg) or 1 α-hydroxycholecalciferol (8 μg/kg). Recovery following vitamin D depletion, as indicated by egg production and shell deposition, was faster in quail fed 1 α-hydroxycholecalciferol than in those fed cholecalciferol. Overall intestinal calcium absorption was higher in the 1 α-hydroxycholecalciferol fed quail due to a higher absorption in the middle parts of the small intestine. This was associated with corresponding differences in the concentration of calcium binding protein. Intestinal calcium absorption was markedly higher during periods of shell formation than during periods of uterine inactivity in quail fed either cholecalciferol or 1 α-hydroxycholecalciferol. It is suggested, therefore, that the mechanism responsible for this difference is independent of vitamin D hydroxylation in the kidney.
פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
Regulation of intestinal calcium absorpton in the laying quail: Independent of kidney vitamin D hydroxylation
106
Bar, A., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Eisner, U., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Montecuccoli, G., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Hurwitz, S., Inst. Anim. Sci., Agric. Res. Organ., Volcani Cent., Bet Dagan, Israel
Regulation of intestinal calcium absorpton in the laying quail: Independent of kidney vitamin D hydroxylation
Two experiments were carried out with laying quail (Coturnix coturnix japonica) fed either cholecalciferol (40 μg/kg) or 1 α-hydroxycholecalciferol (8 μg/kg). Recovery following vitamin D depletion, as indicated by egg production and shell deposition, was faster in quail fed 1 α-hydroxycholecalciferol than in those fed cholecalciferol. Overall intestinal calcium absorption was higher in the 1 α-hydroxycholecalciferol fed quail due to a higher absorption in the middle parts of the small intestine. This was associated with corresponding differences in the concentration of calcium binding protein. Intestinal calcium absorption was markedly higher during periods of shell formation than during periods of uterine inactivity in quail fed either cholecalciferol or 1 α-hydroxycholecalciferol. It is suggested, therefore, that the mechanism responsible for this difference is independent of vitamin D hydroxylation in the kidney.
Scientific Publication
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